对甲基苯腈检测标准

Acrylonitrile for industrial use—Part 15：Determination of concent of p-hydroxylanisole

Chemical reagent—N,N-dimethyl-p-phenylenediamine dihydrochloride

Forensic sciences—Examination methods for chloracetophenone and o-chlorobenzalmalononitrile in tear agent samples—GC-MS

铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法

Rubber antioxidant—N,N'-bis(1-methylpropyl)-p-phenylenediamine

Rubber antioxidant—N-1,3-dimethylbutyl-N’-phenyl-p-phenylenediamine（6PPD）

Rubber antioxidant-N-(1-methylheptyl)-N'-phenyl-p-phenylenediamine (8PPD)

Blend of rubber antioxidant-N-( 1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine and N-(1,4-dimethylpentyl)-N'-phenyl-p-phenylenediamine (6PPD/7PPD)

Water quality--Determination of monomethyl hydrazine--p-Dimethylaminobenzaldehyde spectrophotometric method

Rubber antioxidant-N,N'-bis(1,4-dimethylpentyl)-p-phenylenediamine (77PD)

Acrylonitrile for industrial use—Determination of content of p-hydroxylanisole—Spectrophotometric method

Rubber antioxidant-N-(1,4-dimethylpentyl)-N'-phenylp-phenylenediamine(7PPD)

Test method of purified terephthalic acid (PTA) for industrial use―Part 1：Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL)

Blend of rubber antioxidant-N-( 1-methylheptyl)-N'-phenyl-p-phenylenediamine and polymerized 2,2,4-trimethyl-1，2-dihydroquinoline (8PPD/TMQ)