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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 43289-2023 |
Plastics. Test method for determining the rate of decomposition and extent of disintegration of plastic materials in matrices exposed to the marine environment under laboratory conditions. {译} 塑料 实验室条件下测定暴露于海洋环境基质中塑料材料分解率和崩解程度的试验方法 |
China National Standards extent |
 English PDF |
| GB/T 12085.1-2010 |
Optics and optical instruments - Environmental test methods - Part 1: Definitions, extent of testing 光学和光学仪器 环境试验方法 第1部分：术语、试验范围 |
China National Standards extent |
English PDF |
| GB/T 15489.2-1995 |
Colour filter glass test methods--extent of bubble 滤光玻璃测试方法 气泡度 |
China National Standards extent |
English PDF |
| GB/T 7962.7-1987 |
Colourless optical glass test methods--Examination method for extent of stria 无色光学玻璃测试方法 条纹度检测方法 |
China National Standards extent |
English PDF |
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