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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 5474-1985 |
Phenol-formaldehyde mouldings--Determination of free ammonia and ammonium compounds--Colorimetric comparison method 酚醛模塑制品游离氨和铵化合物的测定 比色法 |
China National Standards free |
 English PDF |
| GB/T 5473-1985 |
Phenol-formaldehyde mouldings--Detection of free ammonia 酚醛模塑制品游离氨的检定 |
China National Standards free |
English PDF |
| GB/T 2689.4-1981 |
Life test and acceleration life test--Optimal linear deflection-free--Evaluation of Weibull distributions 寿命试验和加速寿命试验的最好线性无偏估计法(用于威布尔分布) |
China National Standards free |
English PDF |
| GB/T 2689.3-1981 |
Life test and acceleration life test--Simple linear deflection-free--Evaluation ofWeibull distributions 寿命试验和加速寿命试验的简单线性无偏估计法(用于威布尔分布) |
China National Standards free |
English PDF |
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