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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 12823.4-2008 |
Photography - Density measurement - Part 4: Geometric conditions for reflection density 摄影 密度测量 第4部分：反射密度的几何条件 |
China National Standards Photography - Densit |
 English PDF |
| GB/T 12823.1-2008 |
Photography - Density measurement - Part 1: Terms, symbols and notations 摄影 密度测量 第1部分：术语、符号和表示法 |
China National Standards Photography - Densit |
English PDF |
| GB/T 11500-2008 |
Photography - Density Measurement - Part 2：Geometric conditions for transmission density 摄影 密度测量 第2部分：透视密度的几何条件 |
China National Standards Photography - Densit |
English PDF |
| GB/T 11501-2008 |
Photography - Density Measurement - Part 3：Spectral Conditions 摄影 密度测量 第3部分：光谱条件 |
China National Standards Photography - Densit |
English PDF |
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