GB/T 6730.8-2016(\u82f1\u6587\u7248)
铁矿石 亚铁含量的测定 重铬酸钾滴定法
GB 1886.325-2021
GB/T 30906-2014
Determination of sodium tripolyphosphate content of sodium tripolyphosphate―Ion chromatography
HG/T 5562\uff5e5563-2019
SN/T 4590-2016
Determination of sodium pyrophosphate,sodium tripolyphosphate and sodium trimetaphosphate in aquatic products for export-Ion chromatography
QB/T 1036-1991
GB/T 9984.11-2004
Sodium tripolyphosphate for industrial use-Determination of I type content
QB/T 1035.2-1991
QB/T 1035.4-1991
GB/T 9984.11-1988
Sodium tripolyphosphate for industrial use--Determination of I type content
GB/T 9984.2-2004
Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method
UNE-EN 1211:2006
Chemicals used for treatment of water intended for human consumption - Potassium tripolyphosphate
BS EN 1211:2005
Chemicals used for treatment of water intended for human consumption. Potassium tripolyphosphate
EN 1211:2005
GB/T 9984.6-2004
Sodium tripolyphosphate for industrial use—-Determination of iron content—-2,2'-bipyridyl spectrophotometric method
DB37/T 343-2003
GB/T 9984.2-1988
Sodium tripolyphosphats for industrial use--Determination of total phosphorus pentoxide content--Quinoline phosphomolybdate gravimetric method
DIN EN 1211
Chemicals used for treatment of water intended for human consumption - Potassium tripolyphosphate
QB/T 1035.3-1991
GB/T 9984.6-1988
Determination of iron content in industrial sodium tripolyphosphate--2,2'-Bipyridyl spectrophotometric method