BS 4427-13:1982
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Condensed phosphates for industrial use (including foodstuffs) - determination of calcium content - flame atomic absorption spectrometric method
BS 4427-10:1976
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Determination of total phosphorus (V) oxide content: quinoline phosphomolybdate gravimetric method
BS 4427-15:1982
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Condensed phosphates for industrial use (including foodstuffs) - determination of oxides of nitrogen content - 3,4-xylenol spectrophotometric method
BS 4427-12:1979
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Condensed phosphates for industrial use (including foodstuffs). Determination of arsenic content. Silver diethyldithiocarbamate photometric method
HG/T 2517-2009
HG/T 2528-2009
GB/T 1267-2011
Chemical reagent - Sodium dihydrogen phosphate dihydrate
GB/T 1263-2006
Chemical reagent - Disodium hydrogen phosphate dodecahydrate
GB 1886.338-2021
GB 34456-2017
Feed additive―Sodium dihydrogen phosphate
GB 6854-2008
pH primary reagent - Disodium hydrogen phosphate
GB/T 40461-2021
Determination of sodium content for fertilizers
GB 1886.348-2021
HG/T 2965-2009
HG/T 2767-2009
GB/T 16493-1996
Chemical reagent--Trisodium citrate dihydrate
GB/T 12658-2008
Paper, board and pulp - Determination of sodium content
HG/T 2517-1993
YY 0237-1996
HG 2919-2000
Food additive monosodium phosphate