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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 17235.1-1998 |
Information technology--Digital compression and coding of continuous-tone still images--Part 1:Requirements and guidelines 信息技术 连续色调静态图像的数字压缩及编码 第1部分:要求和指南 |
China National Standards tone |
 English PDF |
| GB/T 16403-1996 |
Acoustics--Audiometric test methods--Basic pure tone air and bone conduction threshold audiometry 声学 测听方法 纯音气导和骨导听阈基本测听法 |
China National Standards tone |
English PDF |
| GB/T 16402-1996 |
Acoustics--Reference equivalent threshold sound pressure levels for pure tones and insert earphones 声学 插入式耳机纯音基准等效阈声压级 |
China National Standards tone |
English PDF |
| GB/T 16296-1996 |
Acoustics--Audiometric test methods--Part 2:Sound field audiometry with pure tone and narrow-band test signals 声学 测听方法 第2部分:用纯音及窄带测试信号的声场测听 |
China National Standards tone |
English PDF |
| GB 16226-1996 |
Health standard for limestone dust in theair of workplace 车间空气中石灰石粉尘卫生标准 |
China National Standards tone |
English PDF |
| GB/T 16059-1995 |
Workplace air--Determination of acetone--Solvent desorption gas chromatographic method 车间空气中丙酮的溶剂解吸气相色谱测定方法 |
China National Standards tone |
English PDF |
| GB/T 16058-1995 |
Workplace air--Determination of acetone--Direct injection gas chromatographic method 车间空气中丙酮的直接进样气相色谱测定方法 |
China National Standards tone |
English PDF |
| GB/T 15516-1995 |
Air quality--Determination offormaldehyde--Acetylacetone spectrophotometric method 空气质量 甲醛的测定 乙酰丙酮分光光度法 |
China National Standards tone |
English PDF |
| GB/T 3412-1994 |
Wheatstone bridge for unbonded elastic wire resistance meter 电阻比电桥 |
China National Standards tone |
English PDF |
| GB/T 15057.9-1994 |
Limestone for chemical industry--Determination of phosphorus content--Molybdenum blue spectrophotometric method 化工用石灰石中磷含量的测定 钼蓝分光光度法 |
China National Standards tone |
English PDF |
| GB/T 15057.8-1994 |
Limestonefor chemical industry--Determination of sulfur content--Gravimetric and combustion-iodate titrimetric methods 化工用石灰石中硫含量的测定 硫酸钡重量法和燃烧-碘酸钾滴定法 |
China National Standards tone |
English PDF |
| GB/T 15057.7-1994 |
Limestone for chemical industry--Determination of aluminium oxide content--Chromazurol S spectrophotometric method 化工用石灰石中氧化铝含量的测定 铬天青S分光光度法 |
China National Standards tone |
English PDF |
| GB/T 15057.6-1994 |
Limestone for chemical industry--Determination of iron content--Phenanthroline spectrophotometric method 化工用石灰石中铁含量的测定 邻菲啰啉分光光度法 |
China National Standards tone |
English PDF |
| GB/T 15057.5-1994 |
Limestone for chemical industry--Determination of silicon dioxide content--Molybdenum blue spectrophotometric method 化工用石灰石中二氧化硅含量的测定 钼蓝分光光度法 |
China National Standards tone |
English PDF |
| GB/T 15057.4-1994 |
Limestone for chemical industry--Determination of iron and aluminium oxides content--Gravimetric method 化工用石灰石中三氧化二物含量的测定 重量法 |
China National Standards tone |
English PDF |
| GB/T 15057.3-1994 |
Limestone for chemical industry--Determination of insoluble matter content of hydrochloric acid--Gravimetric method 化工用石灰石中盐酸不溶物含量的测定 重量法 |
China National Standards tone |
English PDF |
| GB/T 15057.2-1994 |
Limestone for chemical industry--Determination of calcium and magnesium oxides content 化工用石灰石中氧化钙和氧化镁含量的测定 |
China National Standards tone |
English PDF |
| GB/T 15057.1-1994 |
Limestone for chemical industry--Methods of sampling and preparing 化工用石灰石采样与样品制备方法 |
China National Standards tone |
English PDF |
| GB/T 15057.11-1994 |
Limestone for chemical industry--Determination of size 化工用石灰石粒度的测定 |
China National Standards tone |
English PDF |
| GB/T 15057.10-1994 |
Limestone for chemical industry--Determination of content of loss on ignition--Gravimetric method 化工用石灰石中灼烧失量的测定 重量法 |
China National Standards tone |
English PDF |
| GB/T 13197-1991 |
Water quality--Determination of formaldehyde--Acetylacetone spectrophotometric method 水质 甲醛的测定 乙酰丙酮分光光度法 |
China National Standards tone |
English PDF |
| GB/T 11738-1989 |
Standard methodfor hygienic examination of methanol and acetone in air of residential areas--Gas chromatography 居住区大气中甲醇、丙酮卫生检验标准方法 气相色谱法 |
China National Standards tone |
English PDF |
| GB/T 7583-1987 |
Acoustics--Pure tone air conductionthreshold audio-metry--For hearing conservation purposes 声学 纯音气导听阈测定 听力保护用 |
China National Standards tone |
English PDF |
| GB/T 3175.2-1987 |
Reflection flesh tone test card 反射式肤色测试图 |
China National Standards tone |
English PDF |
| GB/T 5443-1985 |
The test methods for the technical specifications of ringing and tone for automatic telephone switchingnetwork 电话自动交换网铃流和信号音技术指标测试方法 |
China National Standards tone |
English PDF |
| GB 3380-1982 |
Ringing and tone for telephone automatic switching network 电话自动交换网铃流和信号音 |
China National Standards tone |
English PDF |
| GB 21340-2019 |
The norm of energy consumption per unit products for glass products and cast stone 玻璃和铸石单位产品能源消耗限额 |
China National Standards tone |
English PDF |
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