GB/T 11987-2022
Surface active agents—Technical alkane sulphonates—Determination of total alkane sulphonates content
GB/T 5195.2-2006
Fluorspar―Determination of carbonate content
GB/T 4701.4-2008
Ferrotitanium - Determinatino of manganese content - Arsenite-salt and sodium-salt titrimetric method and periodate photometric method
GB/T 6730.38-2017(\u82f1\u6587\u7248)
铁矿石 钴含量的测定 亚硝基-R盐分光光度法
GB/T 23836-2009
Determination of molybdate in industrial circulating cooling water - Spectrometric method using thiocyanate
HB 5220.33-2008
Methods for chemical analysis of superalloys-Part 33:Determination of niobium content by tetraphenyl arsonium chloride hydrochloride gravimetric method
GB/T 15401-1994
Fruits,vegetables and derived products--Determination of nitrite and nitrate content
GB/T 20618-2006
Fireworks and firecrackers - Determination of nitrates content in pyrotechnic composition
GB/T 11213.5-2006
Sodium hydroxide for chemical fiber use - Determination of sulphate content
QB/T 2115-2020
Determination of carbonates in detergents
SY/T 6867-2012
Test method of core carbonate content
HG/T 6072-2022
SH/T 1498.6-2022
HG/T 5167-2017
Determination of carboxylat and sulfonate polymer in circulation cooling water
HG/T 4740-2014
SC/T 3405-2018
SN/T 4590-2016
Determination of sodium pyrophosphate,sodium tripolyphosphate and sodium trimetaphosphate in aquatic products for export-Ion chromatography
SY/T 5516-2000
DL 422.4-1991
GB/T 15817-1995
Determination of mineral sulfate content in detergents--Gravimetric method