GB/T 6730.34-2017(\u82f1\u6587\u7248)
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
DB43/T 2200-2021
GB/T 33317-2016
Plastics—Phenolic resins—Determination of hexamethylenetetramine content—Kjeldahl method,perchloric acid method and hydrochloric acid method
YB/T 917-2017
Carbon materials—Determination of vanadium content—3,3-dimethyl naphthalene amine colorimetric method
GB/T 21037-2024
Determination of diaveridine, trimethoprim and ormetoprim in feeds
HG/T 2755-1996
GB/T 6609.18-2004
Chemical analysis methods and determination of physical performanceof alumina--Determination of sulfate content--N,N-dimethyl-P-phenylenediamine spectrophotometric method
\u0413\u041e\u0421\u0422 \u0420 50486-2015
Plastics. Phenolic resins. Determination of hexamethylenetetramine content
20231371-T-606
Plastics — Phenolic resins — Determination of hexamethylenetetramine content\r Kjeldahl method,perchloric acid method and hydrochloric acid method
HB 5422.4-1989
GB/T 39290-2020
Determination the content of the aromatic amines in adhesives
GB/T 20375-2006
Modified starch - Determination of content of carboxymethyl groups in carboxymethyl starch
EN 1791:1997
GB/T 23961-2023
Determination of low carbon aliphatic amines—Gas chromatographic method
GB/T 5543-2006
Resin finishing agent―Determination total formaldehyde content、free formaldehyde content and methylol formadehyde contend
KS M ISO 8988-2010(2020)
Plastics-Phenolic resins-Determination of hexamethylenetetramine content-Kjeldahl method, perchloric acid method and hydrochloric acid method
EN 13435:2001
YB/T 6275-2024
BS EN 13435:2002
Surface active agents. Determination of free amine content of alkyl dimethyl betaines
UNE-EN 13435:2002
Surface active agents - Determination of free amine content of alkyl dimethyl betaines.