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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 3654.8-2023 |
Ferroniobium Determination of titanium content Chromotropic acid photometry and diAntipyrine methane photometry {译} 铌铁 钛含量的测定 变色酸光度法和二安替比林甲烷光度法 |
China National Standards Antipyrine |
 English PDF |
| GB/T 17098-1997 |
Standard method for hygienic examination of phenols in air of residential areas--4-AminoAntipyrine spectrophotometric method 居住区大气中酚类化合物卫生检验标准方法 4-氨基安替比林分光光度法 |
China National Standards Antipyrine |
English PDF |
| GB/T 16072-1995 |
Workplace air--Determination of phenol-4-amino-Antipyrine spectrophotometric method 车间空气中酚的4-氨基安替比林分光光度测定方法 |
China National Standards Antipyrine |
English PDF |
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