Cart:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 44077.41-2024 |
Transparent display devices - Part 41: Test methods - Optical properties {译} 透明显示器件-第41部分：测试方法-光学性能 |
China National Standards Optical |
 English PDF |
| GB/T 44078-2024 |
Determination of Optical center spacing in optoelectronic systems - Low coherence interferometry {译} 光电系统中光学中心间距的测定-低相干干涉测量法 |
China National Standards Optical |
English PDF |
| GB/T 20871.61-2024 |
Organic light-emitting diode display devices - Part 6-1: Test methods for Optical and optoelectronic parameters {译} 有机发光二极管显示器件-第6-1部分：光学和光电参数测试方法 |
China National Standards Optical |
English PDF |
| GB/T 26600-2024 |
Microscopes - Immersion liquids for Optical microscopy {译} 显微镜-光学显微术用浸液 |
China National Standards Optical |
English PDF |
| GB/T 30117.1-2024 |
Photobiological safety of incoherent Optical products - Part 1: General requirements {译} 非相干光产品的光生物安全-第1部分：通用要求 |
China National Standards Optical |
English PDF |
| GB/T 38001.51-2024 |
Flexible display devices - Part 5-1: Optical performance test method {译} 柔性显示器件-第5-1部分：光学性能测试方法 |
China National Standards Optical |
English PDF |
| GB/T 38001.52-2024 |
Flexible display devices - Part 5-2: Optical performance test method for non-portable curved display devices {译} 柔性显示器件-第5-2部分：非便携式曲面显示器件光学性能测试方法 |
China National Standards Optical |
English PDF |
| GB/T 43590.504-2024 |
Laser display devices-Part 5-4: Optical test methods for colored speckle {译} 激光显示器件-第5-4部分：彩色散斑的光学测试方法 |
China National Standards Optical |
English PDF |
| GB/T 43785-2024 |
Performance characterization and measurement method of Optical clock {译} 光钟性能表征及测量方法 |
China National Standards Optical |
English PDF |
| GB/T 43736-2024 |
Method for testing performance parameters of Optical frequency combs in precision optical frequency measurement {译} 精密光频测量中光学频率梳性能参数测试方法 |
China National Standards Optical |
English PDF |
| GB/T 25849-2024 |
Access network technical requirements-10Gbit/s symmetric passive Optical network (XGS-PON) {译} 移动式升降工作平台-设计、计算、安全要求和试验方法 |
China National Standards Optical |
English PDF |
| GB/T 43836-2024 |
Test methods for color photoresist for flat panel displays-Part 2: Optical properties {译} 企业科技创新系统能力水平评价规范 |
China National Standards Optical |
English PDF |
| GB/T 43820-2024 |
Methods for measuring the diffraction efficiency of imaging diffractive Optical elements {译} 纺织品-含相变材料的纺织品-蓄热和放热性能的测定 |
China National Standards Optical |
English PDF |
| GB/T 43789.11-2024 |
Electronic paper display devices - Part 3-1: Test methods for Optical properties {译} 电子纸显示器件-第1-1-部分：术语 |
China National Standards Optical |
English PDF |
| GB/T 43692-2024 |
Laser display devices - Part 5-1: Test methods for Optical performance of laser front projection displays {译} 量子通信术语和定义 |
China National Standards Optical |
English PDF |
| GB/T 18910.4-2024 |
Optical performance test methods for curved organic light emitting diode (OLED) light sources {译} 液晶显示器件-第4部分：液晶显示模块和屏-基本额定值和特性 |
China National Standards Optical |
English PDF |
| GB/T 43590.502-2024 |
Laser display devices - Part 5-2: Optical measurement methods for speckle contrast {译} 激光显示器件-第5-2部分：散斑对比度光学测量方法 |
China National Standards Optical |
English PDF |
| GB/T 43574-2023 |
Chemical fiber Determination of heavy metal content Inductively coupled plasma Optical emission spectrometry and inductively coupled plasma mass spectrometry {译} 化学纤维 重金属含量的测定 电感耦合等离子体发射光谱法和电感耦合等离子体质谱法 |
China National Standards Optical |
English PDF |
| GB/T 43556.2-2023 |
Fiber Optic Cable Line Maintenance Technology Part 2: Underground Splice Box Water Leakage Monitoring Using Optical Monitoring System {译} 光纤光缆线路维护技术 第2部分：使用光学监测系统的地埋接头盒浸水监测 |
China National Standards Optical |
English PDF |
| GB/T 43531-2023 |
Optical performance testing method for multi-view stitching panoramic imaging equipment {译} 多目拼接全景成像设备光学性能测试方法 |
China National Standards Optical |
English PDF |
| GB/T 43530-2023 |
Performance test method for lobster eye focusing Optical components {译} 龙虾眼型聚焦光学元件性能测试方法 |
China National Standards Optical |
English PDF |
| GB/T 43502.1-2023 |
Natural gas - Determination of particulate matter - Part 1: Determination of particle size distribution by Optical methods {译} 天然气 颗粒物的测定 第1部分：用光学法测定粒径分布 |
China National Standards Optical |
English PDF |
| GB/T 43493.2-2023 |
Semiconductor devices - Non-destructive testing and identification criteria for defects in silicon carbide homoepitaxial wafers for power devices - Part 2: Optical detection methods for defects {译} 半导体器件 功率器件用碳化硅同质外延片缺陷的无损检测识别判据 第2部分：缺陷的光学检测方法 |
China National Standards Optical |
English PDF |
| GB/T 28511.2-2023 |
Planar Optical waveguide integrated optical circuit devices Part 2: Dense wavelength division multiplexing (DWDM) filters based on arrayed waveguide grating (AWG) technology {译} 平面光波导集成光路器件 第2部分：基于阵列波导光栅（AWG）技术的密集波分复用（DWDM）滤波器 |
China National Standards Optical |
English PDF |
| GB/T 20186.3-2023 |
Secondary coating materials for Optical fibers Part 3: Modified polycarbonate {译} 光纤用二次被覆材料 第3部分：改性聚碳酸酯 |
China National Standards Optical |
English PDF |
| GB/T 3836.22-2023 |
Explosive atmospheres Part 22: Protective measures for Optical radiation equipment and transmission systems {译} 爆炸性环境 第22部分：光辐射设备和传输系统的保护措施 |
China National Standards Optical |
English PDF |
| GB/T 43256-2023 |
Parameter testing method of distributed Optical fiber strain testing system {译} 分布式光纤应变测试系统参数测试方法 |
China National Standards Optical |
English PDF |
| GB/T 43423-2023 |
Space data and information transmission system Deep space Optical communication encoding and synchronization {译} 空间数据与信息传输系统 深空光通信编码与同步 |
China National Standards Optical |
English PDF |
| GB/T 43372-2023 |
Space data and information transmission system Deep space Optical communication physical layer {译} 空间数据与信息传输系统 深空光通信物理层 |
China National Standards Optical |
English PDF |
| GB/T 43310-2023 |
Determination of chemical elements of glass fibers and raw materials by inductively coupled plasma Optical emission spectrometry (ICP-OES) {译} 玻璃纤维及原料化学元素的测定 电感耦合等离子体发射光谱法（ICP-OES） |
China National Standards Optical |
English PDF |
| GB/T 43031-2023 |
Test method for frequency response parameters of Optical devices used in communications {译} 通信用光器件频响参数测试方法 |
China National Standards Optical |
English PDF |
| GB/T 42977-2023 |
Nanotechnology Nano-optoelectronic display Optical reliability determination of quantum dot light conversion films {译} 纳米技术 纳米光电显示 量子点光转换膜的光学可靠性测定 |
China National Standards Optical |
English PDF |
| GB/T 42976-2023 |
Nanotechnology Nano-Optical display Quantum dot light conversion film optical performance testing method {译} 纳米技术 纳米光电显示 量子点光转换膜光学性能测试方法 |
China National Standards Optical |
English PDF |
| GB/T 42657-2023 |
Test method for infrared refractive index temperature coefficient of infrared Optical glass - vertical incidence method {译} 红外光学玻璃红外折射率温度系数测试方法 垂直入射法 |
China National Standards Optical |
English PDF |
| GB/T 42921-2023 |
Optical functional film Polyethylene terephthalate (PET) film Protective film adhesion measurement method {译} 光学功能薄膜 聚对苯二甲酸乙二醇酯（PET）薄膜 保护膜黏着力测定方法 |
China National Standards Optical |
English PDF |
| GB/T 42674-2023 |
Optical functional film microstructure thickness test method {译} 光学功能薄膜 微结构厚度测试方法 |
China National Standards Optical |
English PDF |
| GB/T 27668-2023 |
Microscope Optical Microscopy Terminology {译} 显微镜 光学显微术术语 |
China National Standards Optical |
English PDF |
| GB/T 10671-2023 |
Test method for specific Optical density of smoke produced by solid materials {译} 固体材料产烟的比光密度试验方法 |
China National Standards Optical |
English PDF |
| GB/T 38662.2-2023 |
Internet of Things Marking System Ecode Marking Application Guide Part 2: Wire, Cable and Optical Fiber Cable {译} 物联网标识体系 Ecode标识应用指南 第2部分：电线电缆和光纤光缆 |
China National Standards Optical |
English PDF |
| GB/T 42750-2023 |
Optical radiation safety measurement method for wearable devices {译} 可穿戴设备的光辐射安全测量方法 |
China National Standards Optical |
English PDF |
| GB/T 17001.7-2023 |
Security inks - Part 7: Optically variable security inks {译} 防伪油墨 第7部分：光学可变防伪油墨 |
China National Standards Optical |
English PDF |
| GB/T 18899-2023 |
All-Dielectric Self-Supporting Optical Cable {译} 全介质自承式光缆 |
China National Standards Optical |
English PDF |
| GB/T 16849-2023 |
General Specifications for Optical Amplifiers {译} 光放大器总规范 |
China National Standards Optical |
English PDF |
| GB/T 41535-2022 |
Authenticity inspection of aerosol Optical depth remote sensing products {译} 气溶胶光学厚度遥感产品真实性检验 |
China National Standards Optical |
English PDF |
| GB/T 11417.5-2012 |
Ophthalmic optics - Contact lenses - Part 5: Test methods for Optical properties "No. 1 Amendment" {译} 眼科光学 接触镜 第5部分: 光学性能试验方法《第1号修改单》 |
China National Standards Optical |
English PDF |
| GB/T 18380.34-2022 |
Fire tests of electric and Optical cables under fire conditions - Part 34: vertical flame spread test for vertically mounted bunched wires and cables, class B {译} 电缆和光缆在火焰条件下的燃烧试验 第34部分：垂直安装的成束电线电缆火焰垂直蔓延试验 B类 |
China National Standards Optical |
English PDF |
| GB/T 18380.33-2022 |
Fire tests of electric and Optical cables under fire conditions - Part 33: vertical flame spread test for vertically mounted bunched wires and cables, class A {译} 电缆和光缆在火焰条件下的燃烧试验 第33部分：垂直安装的成束电线电缆火焰垂直蔓延试验 A类 |
China National Standards Optical |
English PDF |
| GB/T 18380.32-2022 |
Fire tests of electric and Optical cables under fire conditions - Part 32: vertical flame spread test for vertically mounted bunched wires and cables, class A, f / R {译} 电缆和光缆在火焰条件下的燃烧试验 第32部分：垂直安装的成束电线电缆火焰垂直蔓延试验 A F/R类 |
China National Standards Optical |
English PDF |
| GB/T 41434-2022 |
Basic terms for Optical properties of paper, paperboard and pulp {译} 纸、纸板和纸浆 光学性能基本术语 |
China National Standards Optical |
English PDF |
| GB/T 18380.36-2022 |
Tests on electric and Optical fibre cables under fire conditions—Part 36：Test for vertical flame spread of vertically-mounted bunched wires or cables—Category D 电缆和光缆在火焰条件下的燃烧试验 第36部分：垂直安装的成束电线电缆火焰垂直蔓延试验 D类 |
China National Standards Optical |
English PDF |
| GB/T 18380.35-2022 |
Tests on electric and Optical fibre cables under fire conditions - Part 35: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C 电缆和光缆在火焰条件下的燃烧试验 第35部分：垂直安装的成束电线电缆火焰垂直蔓延试验 C类 |
China National Standards Optical |
English PDF |
| GB/T 18380.31-2022 |
Tests on electric and Optical fibre cables under fire conditions—Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables—Apparatus 电缆和光缆在火焰条件下的燃烧试验 第31部分：垂直安装的成束电线电缆火焰垂直蔓延试验 试验装置 |
China National Standards Optical |
English PDF |
| GB/T 18380.13-2022 |
Tests on electric and Optical fibre cables under fire conditions—Part 13:Test for vertical flame propagation for a single insulated wire or cable—Procedure for determination of flaming droplets/particles 电缆和光缆在火焰条件下的燃烧试验 第13部分：单根绝缘电线电缆火焰垂直蔓延试验 测定燃烧的滴落（物）/微粒的试验方法 |
China National Standards Optical |
English PDF |
| GB/T 18380.12-2022 |
Tests on electric and Optical fibre cables under fire conditions—Part 12:Test for vertical flame propagation for a single insulated wire or cable—Procedure for 1 kW pre-mixed flame 电缆和光缆在火焰条件下的燃烧试验 第12部分：单根绝缘电线电缆火焰垂直蔓延试验 1 kW 预混合型火焰试验方法 |
China National Standards Optical |
English PDF |
| GB/T 18380.11-2022 |
Tests on electric and Optical fibre cables under fire conditions—Part 11:Test for vertical flame propagation for a single insulated wire or cable—Apparatus 电缆和光缆在火焰条件下的燃烧试验 第11部分：单根绝缘电线电缆火焰垂直蔓延试验 试验装置 |
China National Standards Optical |
English PDF |
| GB/T 41265-2022 |
Optical Radiation Safety Requirements for Wearable Devices {译} 可穿戴设备的光辐射安全要求 |
China National Standards Optical |
English PDF |
| GB/T 42222-2022 |
Glass instruments - Test methods and classification for Optical uniformity {译} 玻璃仪器 光学均匀性测试方法与分级 |
China National Standards Optical |
English PDF |
| GB/T 16850.1-2022 |
Test methods for Optical amplifiers - Part 1: Power and gain parameters of single-channel optical amplifiers {译} 光放大器试验方法 第1部分：单波道光放大器功率和增益参数 |
China National Standards Optical |
English PDF |
| GB/T 42219-2022 |
Optical Measurement of High Power LEDs {译} 大功率LED的光学测量 |
China National Standards Optical |
English PDF |
| GB/T 16857.8-2022 |
Geometric Product Specification (GPS) Coordinate Measuring System (CMS) Acceptance and Re-inspection Testing Part 8: Coordinate Measuring Machines Using Optical Distance Sensors {译} 产品几何技术规范（GPS） 坐标测量系统（CMS）的验收检测和复检检测 第8部分：使用光学距离传感器的坐标测量机 |
China National Standards Optical |
English PDF |
| GB/T 41945-2022 |
Rubber and vulcanizate - Determination of metal content by inductively coupled plasma Optical emission spectrometry (ICP-OES) {译} 生胶和硫化胶 用电感耦合等离子体发射光谱仪(ICP-OES)测定金属含量 |
China National Standards Optical |
English PDF |
| GB/T 42257-2022 |
Chromium-erbium co-doped yttrium-scandium-gallium garnet crystal Optical and laser performance measurement method {译} 铬铒共掺钇钪镓石榴石晶体光学及激光性能测量方法 |
China National Standards Optical |
English PDF |
| GB/T 26332.8-2022 |
Optics and photonics - Optical films - Part 8: Basic requirements for laser optical films {译} 光学和光子学 光学薄膜 第8部分：激光光学薄膜基本要求 |
China National Standards Optical |
English PDF |
| GB/T 26332.7-2022 |
Optics and photonics - Optical films - Part 7: Basic requirements for neutral beamsplitters {译} 光学和光子学 光学薄膜 第7部分：中性分束膜基本要求 |
China National Standards Optical |
English PDF |
| GB/T 26332.6-2022 |
Optics and photonics - Optical films - Part 6: Basic requirements for reflective films {译} 光学和光子学 光学薄膜 第6部分：反射膜基本要求 |
China National Standards Optical |
English PDF |
| GB/T 26332.5-2022 |
Optics and photonics - Optical films - Part 5: Basic requirements for antireflection coatings {译} 光学和光子学 光学薄膜 第5部分：减反射膜基本要求 |
China National Standards Optical |
English PDF |
| GB/T 9771.7-2022 |
Single-mode Optical fibers for telecommunication - Part 7: Characteristics of bend loss insensitive single-mode optical fibers {译} 通信用单模光纤 第7部分：弯曲损耗不敏感单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 42064-2022 |
Equipment for general lighting - Flicker characteristics - Optical scintillation meter test method {译} 普通照明用设备 闪烁特性 光闪烁计测试法 |
China National Standards Optical |
English PDF |
| GB/T 41785-2022 |
General specification for magneto-Optical hybrid storage system {译} 磁光电混合存储系统通用规范 |
China National Standards Optical |
English PDF |
| GB/T 32561.5-2022 |
Infrared Optical Chalcogenide Glass Test Methods Part 5: Stress Birefringence {译} 红外光学硫系玻璃测试方法 第5部分：应力双折射 |
China National Standards Optical |
English PDF |
| GB/T 32561.4-2022 |
Infrared Optical Chalcogenide Glass Test Method Part 4: Optical Absorption Coefficient {译} 红外光学硫系玻璃测试方法 第4部分：光吸收系数 |
China National Standards Optical |
English PDF |
| GB/T 41805-2022 |
Quantitative detection method for surface defects of Optical components-microscattering dark-field imaging method {译} 光学元件表面疵病定量检测方法 显微散射暗场成像法 |
China National Standards Optical |
English PDF |
| GB/T 41894.2-2022 |
Ships and marine technology - Determination of shaft power in ship propulsion systems by measuring shaft deflection - Part 2: Optical reflection method {译} 船舶与海上技术 通过测量轴变形量确定船舶推进系统轴功率 第2部分：光学反射法 |
China National Standards Optical |
English PDF |
| GB/T 40293-2021 |
Test method for refractive index of infrared Optical chalcogenide films 红外硫系光学薄膜折射率测试方法 |
China National Standards Optical |
English PDF |
| GB/T 40279-2021 |
Test method for thickness of films on silicon wafer surface—Optical reflection method 硅片表面薄膜厚度的测试 光学反射法 |
China National Standards Optical |
English PDF |
| GB/T 15972.31-2021 |
Specifications for Optical fibre test methods—Part 31: Measurement methods and test procedures for mechanical characteristics—Tensile strength 光纤试验方法规范 第31部分：机械性能的测量方法和试验程序 抗张强度 |
China National Standards Optical |
English PDF |
| GB/T 40177-2021 |
Optics and Optical instruments—Ophthalmology—Graduated dial scale 光学和光学仪器 眼科学 分度盘刻度 |
China National Standards Optical |
English PDF |
| GB/T 40114-2021 |
Jewellery—Determination of precious metal content—Difference method using inductively coupled plasma Optical emission spectroscopy 首饰 贵金属含量的测定 ICP差减法 |
China National Standards Optical |
English PDF |
| GB/T 40071-2021 |
Nanotechnologies—Measurement of the number of layers of graphene-related two-dimensional (2D) materials—Optical contrast method 纳米技术 石墨烯相关二维材料的层数测量 光学对比度法 |
China National Standards Optical |
English PDF |
| GB/T 15972.47-2021 |
Specifications for Optical fibre test method - Part 47: Measurement methods and test procedures for transmission characteristics - Macrobending loss 光纤试验方法规范 第47部分：传输特性的测量方法和试验程序 宏弯损耗 |
China National Standards Optical |
English PDF |
| GB/T 19216.3-2021 |
Circuit integrity test for electric cables or Optical fiber cables under fire conditions—Part 3:Test method for fire with shock at a temperature of at least 830℃ for cables of rated voltage up to and including 0.6/1 kV tested in a metal enclosure 在火焰条件下电缆或光缆的线路完整性试验 第3部分：火焰温度不低于830 ℃的供火并施加冲击振动，额定电压0.6/1 kV及以下电缆穿在金属管中进行的试验方法 |
China National Standards Optical |
English PDF |
| GB/T 19216.2-2021 |
Circuit integrity test for electric cables or Optical fiber cables under fire conditions - Part 2: Test method for fire with shock at a temperature of at least 830 ℃ for cables of rated voltage up to and including 0.6/1 kV and with an overall diameter not 在火焰条件下电缆或光缆的线路完整性试验 第2部分：火焰温度不低于830 ℃的供火并施加冲击振动，额定电压0.6/1 kV及以下外径不超过20 mm电缆的试验方法 |
China National Standards Optical |
English PDF |
| GB/T 19216.1-2021 |
Circuit integrity test for electric cables or Optical fiber cables under fire conditions-Part 1:Test method for fire with shock at atemperature of at least 830 ℃ for cables of rated voltage up to and including 0.6/ 1 kV and with an overall diameter exceed 在火焰条件下电缆或光缆的线路完整性试验 第1部分：火焰温度不低于830 ℃的供火并施加冲击振动，额定电压0.6/1 kV及以下外径超过20 mm电缆的试验方法 |
China National Standards Optical |
English PDF |
| GB/T 33779.3-2021 |
Guidance for special characteristic of Optical fibre—Part 3:Effective area(Aeff) 光纤特性测试导则 第3部分：有效面积(Aeff) |
China National Standards Optical |
English PDF |
| GB/T 28515.2-2021 |
Test method for automatically switched Optical network(ASON)—Part 2:OTN-based ASON 自动交换光网络(ASON)测试方法 第2部分：基于OTN的ASON |
China National Standards Optical |
English PDF |
| GB/T 21548-2021 |
Methods of measurement of the high speed semiconductor lasers directly modulated for Optical fiber communication systems 光通信用高速直接调制半导体激光器的测量方法 |
China National Standards Optical |
English PDF |
| GB/T 15972.42-2021 |
Specifications for Optical fibre test methods—Part 42:Measurement methods and test procedures for transmission characteristics—Chromatic dispersion 光纤试验方法规范 第42部分：传输特性的测量方法和试验程序 波长色散 |
China National Standards Optical |
English PDF |
| GB/T 33351.2-2021 |
Determination of arsenic,beryllium,antimony in electrical and electronic products—Part 2:Inductively coupled plasma Optical emission spectrometry 电子电气产品中砷、铍、锑的测定 第2部分：电感耦合等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 24202-2021 |
Carbon steel wire for tension members of Optical fiber cable 光缆增强用碳素钢丝 |
China National Standards Optical |
English PDF |
| GB/T 15972.54-2021 |
Specifications for Optical fibre test methods—Part 54:Measurement methods and test procedures for environmental characteristics—Gamma irradiation 光纤试验方法规范 第54部分：环境性能的测量方法和试验程序 伽玛辐照 |
China National Standards Optical |
English PDF |
| GB/T 15972.45-2021 |
Specifications for Optical fibre test methods—Part 45:Measurement methods and test procedures for transmission characteristics—Mode field diameter 光纤试验方法规范 第45部分：传输特性的测量方法和试验程序 模场直径 |
China National Standards Optical |
English PDF |
| GB/T 15972.43-2021 |
Specifications for Optical fibre test methods—Part 43: Measurement methods and test procedures for transmission characteristics—Numerical aperture 光纤试验方法规范 第43部分：传输特性的测量方法和试验程序 数值孔径 |
China National Standards Optical |
English PDF |
| GB/T 15972.41-2021 |
Specifications for Optical fibre test methods-Part 41:Measurement methods and test procedures for transmission characteristics-Bandwidth 光纤试验方法规范 第41部分：传输特性的测量方法和试验程序 带宽 |
China National Standards Optical |
English PDF |
| GB/T 15972.34-2021 |
Specifications for Optical fibre test methods—Part 34:Measurement methods and test procedures for mechanical characteristics—Fibre curl 光纤试验方法规范 第34部分：机械性能的测量方法和试验程序 光纤翘曲 |
China National Standards Optical |
English PDF |
| GB/T 15972.30-2021 |
Specifications for Optical fibre test methods—Part 30: Measurement methods and test procedures for mechanical characteristics—Fibre proof test 光纤试验方法规范 第30部分：机械性能的测量方法和试验程序 光纤筛选试验 |
China National Standards Optical |
English PDF |
| GB/T 15972.20-2021 |
Specifications for Optical fibre test methods-Part 20:Measurement methods and test procedures for dimensions- Fibre geometry 光纤试验方法规范 第20部分：尺寸参数的测量方法和试验程序 光纤几何参数 |
China National Standards Optical |
English PDF |
| GB/T 15972.10-2021 |
Specifications for Optical fibre test methods-Part 10:Measurement methods and test procedures-General and guidance 光纤试验方法规范 第10部分：测量方法和试验程序 总则 |
China National Standards Optical |
English PDF |
| GB/T 7424.22-2021 |
Optical fibre cable generic specification—Part 22：Basic optical cable test procedures—Environmental test methods 光缆总规范 第22部分：光缆基本试验方法 环境性能试验方法 |
China National Standards Optical |
English PDF |
| GB/T 7424.20-2021 |
Optical fibre cable generic specification—Part 20:Basic optical cable test procedures—General and definitions 光缆总规范 第20部分：光缆基本试验方法 总则和定义 |
China National Standards Optical |
English PDF |
| GB/T 17651.2-2021 |
Measurement of smoke density of cables or Optical fiber cables burning under defined conditions - Part 2: Test procedure and requirements 电缆或光缆在特定条件下燃烧的烟密度测定 第2部分：试验程序和要求 |
China National Standards Optical |
English PDF |
| GB/T 17651.1-2021 |
Measurement of smoke density of cables or Optical fiber cables burning under defined conditions-Part 1:Test apparatus 电缆或光缆在特定条件下燃烧的烟密度测定 第1部分：试验装置 |
China National Standards Optical |
English PDF |
| GB/T 17650.2-2021 |
Test on gases evolved during combustion of materials from cables or Optical fiber cables - Part 2: Determination of acidity (by pH measurement) and conductivity 取自电缆或光缆的材料燃烧时释出气体的试验方法 第2部分：酸度（用pH测量）和电导率的测定 |
China National Standards Optical |
English PDF |
| GB/T 17650.1-2021 |
Test on gases evolved during combustion of materials from cables or Optical fiber cables-Part 1:Determination of the halogen acid gas content 取自电缆或光缆的材料燃烧时释出气体的试验方法 第1部分：卤酸气体总量的测定 |
China National Standards Optical |
English PDF |
| GB/T 39893-2021 |
Handheld electro-Optical low-vision device 手持式电子助视器 |
China National Standards Optical |
English PDF |
| GB/T 39865-2021 |
Method for measuring refractive index of uniaxial Optical crystals 单轴晶光学晶体折射率测量方法 |
China National Standards Optical |
English PDF |
| GB/T 39798-2021 |
Test methods for Optical properties of glass used on multiple units 动车组玻璃光学性能试验方法 |
China National Standards Optical |
English PDF |
| GB/T 39771.2-2021 |
Optical radiation safety of LEDs—Part 2: Measurement methods 半导体发光二极管光辐射安全 第2部分：测试方法 |
China National Standards Optical |
English PDF |
| GB/T 39771.1-2021 |
Optical radiation safety of LEDs—Part 1: Safety requirements and classification 半导体发光二极管光辐射安全 第1部分：要求与等级分类方法 |
China National Standards Optical |
English PDF |
| GB/T 38478-2021 |
Determination of astaxanthin Opticalisomers content—Liquid chromatography 虾青素旋光异构体含量的测定 液相色谱法 |
China National Standards Optical |
English PDF |
| GB/T 41057-2021 |
Technical requirements for distributed acoustic Optical fiber monitoring system on prestressed concrete cylinder pipe 预应力钢筒混凝土管分布式光纤声监测技术要求 |
China National Standards Optical |
English PDF |
| GB/T 41070-2021 |
Lenticular lens film for autostereoscopic 3D display -- Optical measurement method 裸眼3D柱透镜光栅膜 光学测量方法 |
China National Standards Optical |
English PDF |
| GB/T 40658-2021 |
Potassium bromide Optical elements 溴化钾光学元件 |
China National Standards Optical |
English PDF |
| GB/T 40646-2021 |
Technical requirements for broadband customer networking based on public telecommunication network -- Optical camera communications 基于公用电信网的宽带客户网络联网技术要求 可见光成像通信 |
China National Standards Optical |
English PDF |
| GB/T 28504.3-2021 |
Rare earth doped Optical fibre—Part 3:Characteristics of double-cladding erbium-ytterbium co-doped optical fibre 掺稀土光纤 第3部分：双包层铒镱共掺光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 28504.2-2021 |
Rare earth doped Optical fibre—Part 2:Characteristics of double-cladding thulium-doped optical fibre 掺稀土光纤 第2部分：双包层掺铥光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 15972.49-2021 |
Specifications for Optical fibre test methods—Part 49: Measurement methods and test procedures for transmission characteristics—Differential mode delay 光纤试验方法规范 第49部分：传输特性的测量方法和试验程序 微分模时延 |
China National Standards Optical |
English PDF |
| GB/T 15972.32-2021 |
Specifications for Optical fibre test methods—Part 32： Measurement methods and test procedures for mechanical characteristics—Coating strippability 光纤试验方法规范 第32部分：机械性能的测量方法和试验程序 涂覆层可剥性 |
China National Standards Optical |
English PDF |
| GB/T 16850.3-2021 |
Optical amplifiers test methods—Part 3:Noise figure parameters for single-channel amplifiers 光放大器试验方法 第3部分：单波道光放大器噪声参数 |
China National Standards Optical |
English PDF |
| GB/T 7424.23-2021 |
Optical fibre cable generic specification—Part 23：Basic optical cable test procedures—Cable element test methods 光缆总规范 第23部分：光缆基本试验方法 光缆元构件试验方法 |
China National Standards Optical |
English PDF |
| GB/T 7424.21-2021 |
Optical fibre cable generic specification—Part 21：Basic optical cable test procedures—Mechanical test methods 光缆总规范 第21部分：光缆基本试验方法 机械性能试验方法 |
China National Standards Optical |
English PDF |
| GB/T 20186.2-2021 |
Secondary coating materials used for Optical fibre—Part 2: Modified propylene resin 光纤用二次被覆材料 第2部分：改性聚丙烯 |
China National Standards Optical |
English PDF |
| GB/T 40523-2021 |
Technology specification for geometric calibration of 1:25000 1:50000 Optical mapping satellite 1:25000 1:50000光学测绘卫星几何检校技术规范 |
China National Standards Optical |
English PDF |
| GB/T 39118-2020 |
Safety requirements of Optical radiation for laser pointers products 激光指示器产品光辐射安全要求 |
China National Standards Optical |
English PDF |
| GB/T 24328.11-2020 |
Tissue paper and tissue products—Part 11: Determination of Optical properties—Measurement of brightness and colour—C/2°(indoor daylight) illuminant 卫生纸及其制品 第11部分：光学性能的测定 亮度和颜色的测定 C/2°（室内日光条件） |
China National Standards Optical |
English PDF |
| GB/T 24328.12-2020 |
Tissue paper and tissue products—Part 12: Determination of Optical properties—Determination of opacity—Diffuse reflectance method 卫生纸及其制品 第12部分：光学性能的测定 不透明度的测定 漫反射法 |
China National Standards Optical |
English PDF |
| GB/T 24328.8-2020 |
Tissue paper and tissue products—Part 8: Determination of Optical properties—Measurement of brightness and colour—D65/10°（outdoor daylight conditions) 卫生纸及其制品 第8部分：光学性能的测定 亮度和颜色的测定 D65/10°（室外日光条件） |
China National Standards Optical |
English PDF |
| GB/T 38876-2020 |
Test method for access network equipment—10Gbit/s ethernet passive Optical network (10G EPON) 接入网设备测试方法 10Gbit/s以太网无源光网络（10G EPON） |
China National Standards Optical |
English PDF |
| GB/T 38935-2020 |
On-orbit radiometric characteristics assessment for Optical imaging remote sensor—VIS-SWIR 光学遥感器在轨成像辐射性能评价方法 可见光-短波红外 |
China National Standards Optical |
English PDF |
| GB/T 9771.6-2020 |
Single-mode Optical fibres for telecommunication—Part 6: Characteristics of a fibre with non-zero dispersion for wideband optical transport 通信用单模光纤 第6部分：宽波长段光传输用非零色散单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 9771.5-2020 |
Single-mode Optical fibres for telecommunication—Part 5: Characteristics of a non-zero dispersion shifted single-mode optical fibre 通信用单模光纤 第5部分：非零色散位移单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 9771.4-2020 |
Single-mode Optical fibres for telecommunication—Part 4: Characteristics of a dispersion shifted single-mode optical fibre 通信用单模光纤 第4部分：色散位移单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 9771.3-2020 |
Single-mode Optical fibres for telecommunication—Part 3: Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre 通信用单模光纤 第3部分：波长段扩展的非色散位移单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 9771.2-2020 |
Single-mode Optical fibres for telecommunication—Part 2: Characteristics of a cut-off wavelength shifted single-mode optical fibre 通信用单模光纤 第2部分：截止波长位移单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 9771.1-2020 |
Single-mode Optical fibres for telecommunication—Part 1: Characteristics of a dispersion unshifted single-mode optical fibre 通信用单模光纤 第1部分：非色散位移单模光纤特性 |
China National Standards Optical |
English PDF |
| GB/T 5137.2-2020 |
Test methods of safety glazing materials used on road vehicles—Part 2:Optical properties tests 汽车安全玻璃试验方法 第2部分：光学性能试验 |
China National Standards Optical |
English PDF |
| GB/T 38684-2020 |
Metallic materials—Sheet and strip—Biaxial stress-strain curve by means of bulge test—Optical measuring systems 金属材料 薄板和薄带 双轴应力-应变曲线胀形试验 光学测量方法 |
China National Standards Optical |
English PDF |
| GB/T 51421-2020 |
Technical standard of communication pole line engineering for aerial Optical ( copper ) cable 架空光(电)缆通信杆路工程技术标准 |
China National Standards Optical |
English PDF |
| GB/T 39577-2020 |
Technical requirements for access network—10-Gigabit-capable passive Optical networks (XG-PON) 接入网技术要求 10Gbit/s无源光网络（XG-PON） |
China National Standards Optical |
English PDF |
| GB/T 39564.3-2020 |
Multi-carrier shared distribution infrastructure for fibre to the home—Part 3: Optical distribution box 光纤到户用多电信业务经营者共用型配线设施 第3部分：光缆分纤箱 |
China National Standards Optical |
English PDF |
| GB/T 39564.2-2020 |
Multi-carrier shared distribution infrastructure for fibre to the home—Part 2: Optical fibre distribution frame 光纤到户用多电信业务经营者共用型配线设施 第2部分：光纤配线架 |
China National Standards Optical |
English PDF |
| GB/T 39564.1-2020 |
Multi-carrier shared distribution infrastructure for fibre to the home—Part 1: Optical cable cross-connect cabinet 光纤到户用多电信业务经营者共用型配线设施 第1部分：光缆交接箱 |
China National Standards Optical |
English PDF |
| GB/T 7424.24-2020 |
Optical fibre cable generic specification—Part 24: Basic optical cable test procedures—Electrical test methods 光缆总规范 第24部分：光缆基本试验方法 电气试验方法 |
China National Standards Optical |
English PDF |
| GB/T 39356-2020 |
Determination of total nickel,total cobalt,total selenium, total vanadium, total stibium,total thallium in fertilizers — Inductively coupled plasma Optical emission spectroscopy 肥料中总镍、总钴、总硒、总钒、总锑、总铊含量的测定 电感耦合等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 51398-2019 |
Standard for engineering technology of Optical transport network(OTN) 光传送网（OTN）工程技术标准 |
China National Standards Optical |
English PDF |
| GB/T 51380-2019 |
Technical standard for broadban Optical fiber access engieering 宽带光纤接入工程技术标准 |
China National Standards Optical |
English PDF |
| GB/T 38256-2019 |
Test method for Optical axis parallelism of multiple optical paths 多光路光轴平行性测试方法 |
China National Standards Optical |
English PDF |
| GB/T 19666-2019 |
General rules for flame retardant and fire resistant electric wires and cables or Optical fiber cables 阻燃和耐火电线电缆或光缆通则 |
China National Standards Optical |
English PDF |
| GB/T 38394-2019 |
Coal tar—Determination of sodium, calcium, magnesium and iron content—Inductively coupled plasma Optical emission spectrometry 煤焦油 钠、钙、镁、铁含量的测定 电感耦合等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 38256-2019 |
Test method for Optical axis parallelism of multiple optical paths 多光路光轴平行性测试方法 |
China National Standards Optical |
English PDF |
| GB/T 19666-2019 |
General rules for flame retardant and fire resistant electric wires and cables or Optical fiber cables 阻燃和耐火电线电缆或光缆通则 |
China National Standards Optical |
English PDF |
| GB 15322.4-2019 |
Combustible gas detectors—Part 4: Line-type Optical beam combustible gas detectors for industrial and commercial use 可燃气体探测器 第4部分：工业及商业用途线型光束可燃气体探测器 |
China National Standards Optical |
English PDF |
| GB 15322.4-2019 |
Combustible gas detectors—Part 4: Line-type Optical beam combustible gas detectors for industrial and commercial use 可燃气体探测器 第4部分：工业及商业用途线型光束可燃气体探测器 |
China National Standards Optical |
English PDF |
| GB/T 37958-2019 |
Requirements of Optical radiation safety for active lighting units of video surveillance systems 视频监控系统主动照明部件光辐射安全要求 |
China National Standards Optical |
English PDF |
| GB/T 37831-2019 |
Test methods for Optical properties for aircraft glass 航空玻璃光学性能试验方法 |
China National Standards Optical |
English PDF |
| GB/T 17570-2019 |
General specification for Optical fibre fusion splicers 光纤熔接机通用规范 |
China National Standards Optical |
English PDF |
| GB/T 7962.23-2019 |
Test method of colourless Optical glass—Part 23: Resistance to climatic 无色光学玻璃测试方法 第23部分：耐气候稳定性 |
China National Standards Optical |
English PDF |
| GB/T 7962.22-2019 |
Test method of colourless Optical glass—Part 22：Resistance to attack by aqueous alkaline phosphate-containing 无色光学玻璃测试方法 第22部分：耐磷酸稳定性 |
China National Standards Optical |
English PDF |
| GB/T 7962.21-2019 |
Test method of colourless Optical glass—Part 21：Resistance to attack by aqueous alkaline solutions 无色光学玻璃测试方法 第21部分：耐碱稳定性 |
China National Standards Optical |
English PDF |
| GB 51371-2019 |
Standard for design of the waste wire cable and Optical fiber cable processing engineering 废弃电线电缆光缆处理工程设计标准 |
China National Standards Optical |
English PDF |
| GB/T 32671.2-2019 |
Colloidal systems—Methods for zeta-potential determination—Part 2:Optical methods 胶体体系 zeta电位测量方法 第2部分：光学法 |
China National Standards Optical |
English PDF |
| GB/T 37384-2019 |
Cellulose triacetate for Optical function film 光学功能薄膜用三醋酸纤维素 |
China National Standards Optical |
English PDF |
| GB/T 37382-2019 |
Optical functional films—Films for backlight unit of liquid crystal display—High temperature and high humidity aging measurement 光学功能薄膜 液晶显示背光模组用薄膜 高温高湿老化性能测定方法 |
China National Standards Optical |
English PDF |
| GB/T 37396.2-2019 |
Lasers and laser-related equipment—Standard Optical components—Part 2: Components for the infrared spectral ranges 激光器和激光相关设备 标准光学元件 第2部分：红外光谱范围内的元件 |
China National Standards Optical |
English PDF |
| GB/T 37396.1-2019 |
Lasers and laser-related equipment—Standard Optical components—Part 1:Components for the UV,visible and near-infrared spectral ranges 激光器和激光相关设备 标准光学元件 第1部分：紫外、可见和近红外光谱范围内的元件 |
China National Standards Optical |
English PDF |
| GB/T 903-2019 |
Colourless Optical glass 无色光学玻璃 |
China National Standards Optical |
English PDF |
| GB/T 37160-2019 |
Standard test method for determination of trace metals in heavy distillate,residual oil and crude oil—Inductively coupled plasma Optical emission spectrometry（ICP-OES） 重质馏分油、渣油及原油中痕量金属元素的测定 电感耦合等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 36982-2018 |
Interface technical requirements and measurement methods of the digital Optical line terminal used in program distribution network 节目分配网络ASI数字光端机接口技术要求和测量方法 |
China National Standards Optical |
English PDF |
| GB/T 37083-2018 |
Technical requirements for access network—Interoperability of ethernet passive Optical network（EPON）system 接入网技术要求-EPON系统互通性 |
China National Standards Optical |
English PDF |
| GB/T 37081-2018 |
Technical requirements for access network—10Gbit/s ethernet passive Optical network (10G-EPON) 接入网技术要求-10Gbit/s-以太网无源光网络(10G-EPON) |
China National Standards Optical |
English PDF |
| GB/T 37186-2018 |
Gas analysis—Determination of sulfur dioxide and nitrogen oxides—Ultraviolet differential Optical absorption spectroscopy 气体分析-二氧化硫和氮氧化物的测定-紫外差分吸收光谱分析法 |
China National Standards Optical |
English PDF |
| GB/T 37193-2018 |
Optical functional films—Polyethylene terephthalate（PET) film—Determination of extraction rate 光学功能薄膜-聚对苯二甲酸乙二醇酯（PET）薄膜-萃取率测定方法 |
China National Standards Optical |
English PDF |
| GB/T 37248-2018 |
High purity aluminium oxide—Determination of trace metal elements—Inductively coupled plasma Optical emission spectrometry 高纯氧化铝-痕量金属元素的测定-电感耦合等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 51281-2018 |
Synchronous Digital Hierarchy (SDH) Optical Fiber Transmission System Engineering Acceptance Criteria 同步数字体系（SDH）光纤传输系统工程验收标准 |
China National Standards Optical |
English PDF |
| GB/T 14016-2018 |
Marine acoustic and Optical alarm signaller—General specification 船用声光报警信号器 通用技术条件 |
China National Standards Optical |
English PDF |
| GB/T 36261-2018 |
On-site test technical condition and calculation for Optical and thermal parameters of energy saving glass for building 建筑用节能玻璃光学及热工参数现场测量技术条件与计算方法 |
China National Standards Optical |
English PDF |
| GB/T 36265-2018 |
Infrared Optical glass 红外光学玻璃 |
China National Standards Optical |
English PDF |
| GB/T 36403-2018 |
Test methods of infrared transmittance for infrared Optical glass—Fourier transform method 红外光学玻璃红外透过率测试方法 傅里叶变换法 |
China National Standards Optical |
English PDF |
| GB/T 36297-2018 |
Field test characteristics of Optical remote sensing payload 光学遥感载荷性能外场测试评价指标 |
China National Standards Optical |
English PDF |
| GB/T 36299-2018 |
Basic terminology of radiative transfer in Optical remote sensing 光学遥感辐射传输基本术语 |
China National Standards Optical |
English PDF |
| GB/T 36650-2018 |
Inks for Optical fiber coloring 光纤着色油墨 |
China National Standards Optical |
English PDF |
| GB/T 35923-2018 |
Optical functional film—Cellulose triacetate(TAC) film—Determination of plasticizer content 光学功能薄膜 三醋酸纤维素酯(TAC)膜 增塑剂含量测定方法 |
China National Standards Optical |
English PDF |
| GB/T 36005-2018 |
Measuring methods of Optical radiation safety for semiconductor lighting equipments and systems 半导体照明设备和系统的光辐射安全测试方法 |
China National Standards Optical |
English PDF |
| GB/T 24369.2-2018 |
Characterization of gold nanorods—Part 2: Measurement methods for Optical properties 金纳米棒表征 第2部分：光学性质测量方法 |
China National Standards Optical |
English PDF |
| GB/T 7247.2-2018 |
Safety of laser products—Part 2: Safety of Optical fibre communication systems (OFCS) 激光产品的安全 第2部分：光纤通信系统(OFCS)的安全 |
China National Standards Optical |
English PDF |
| GB/T 26332.1-2018 |
Optics and photonics—Optical coatings—Part 1: Definitions 光学和光子学 光学薄膜 第1部分：定义 |
China National Standards Optical |
English PDF |
| GB/T 34894-2017 |
Micro-electromechanical system technology—Measuring method for strain gradient measurements of MEMS microstructures using an Optical interferometer 微机电系统（MEMS）技术 基于光学干涉的MEMS微结构应变梯度测量方法 |
China National Standards Optical |
English PDF |
| GB/T 34900-2017 |
Micro-electromechanical system technology—Measuring method for residual strain measurements of MEMS microstructures using an Optical interferometer 微机电系统（MEMS）技术 基于光学干涉的MEMS微结构残余应变测量方法 |
China National Standards Optical |
English PDF |
| GB/T 34764-2017 |
Determination of copper,iron,zinc,manganese,boron and molybdenum content in fertilizers—Inductively coupled plasma Optical emission spectroscopy 肥料中铜、铁、锰、锌、硼、钼含量的测定 等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 34879-2017 |
Geometrical product specifications (GPS)—Metrological characteristics and guide to uncertainty of measurement for Optical confocal microscopes 产品几何技术规范（GPS） 光学共焦显微镜计量特性及测量不确定度评定导则 |
China National Standards Optical |
English PDF |
| GB/T 34961.3-2017 |
Information technology—Implementation and operation of customer premises cabling—Part 3:Testing of Optical fibre cabling 信息技术 用户建筑群布缆的实现和操作 第3部分：光纤布缆测试 |
China National Standards Optical |
English PDF |
| GB/T 34893-2017 |
Micro-electromechanical system technology—Measuring method for in-plane length measurements of MEMS microstructures using an Optical interferometer 微机电系统（MEMS）技术 基于光学干涉的MEMS微结构面内长度测量方法 |
China National Standards Optical |
English PDF |
| GB/T 34509.2-2017 |
In-orbit field radiometric calibration for Optical remote sensor of land observation satellite—Part 2：Thermal infrared 陆地观测卫星光学遥感器在轨场地辐射定标方法 第2部分：热红外 |
China National Standards Optical |
English PDF |
| GB/T 34509.1-2017 |
In-orbit field radiometric calibration for Optical remote sensor of land observation satellite—Part 1：Visible-near infrared 陆地观测卫星光学遥感器在轨场地辐射定标方法 第1部分：可见光近红外 |
China National Standards Optical |
English PDF |
| GB/T 6730.76-2017 |
Iron ores—Determination of potassium, sodium, vanadium, copper, zinc, lead, chromium, nickel, cobalt elements—Inductively coupled plasma Optical emission spectrometry 铁矿石 钾、钠、钒、铜、锌、铅、铬、镍、钴含量的测定 电感耦合等离子体发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 10574.14-2017 |
Methods for chemical analysis of tin-lead solders—Part 14：Determination of tin, lead,antimony,bismuth,silver,copper,zinc,cadmium and arsenic content—Optical emission spectrometry 锡铅焊料化学分析方法 第14部分：锡、铅、锑、铋、银、铜、锌、镉和砷量的测定 光电发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 34184-2017 |
Test method for infrared refractive index of infrared Optical glass—The deflection angle measurement 红外光学玻璃红外折射率测试方法 偏折角法 |
China National Standards Optical |
English PDF |
| GB/T 34209-2017 |
Stainless steel—Determination of multi-element contents—Glow discharge Optical emission spectrometry 不锈钢 多元素含量的测定 辉光放电原子发射光谱法 |
China National Standards Optical |
English PDF |
| GB/T 34261-2017 |
Optical film for polarizer—Test method for the anti-scratch 偏光片用光学薄膜 抗划伤的测试 |
China National Standards Optical |
English PDF |
| GB/T 34075-2017 |
Measuring methods of Optical radiation safety for LED general lighting service 普通照明用LED产品光辐射安全测量方法 |
China National Standards Optical |
English PDF |
| GB/T 34034-2017 |
Requirements of Optical radiation safety for LED general lighting service 普通照明用LED产品光辐射安全要求 |
China National Standards Optical |
English PDF |
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