GB/T 33054-2016
Determination of content of sodium sulfide in sulphur dye products
KS M 8230-2018(2023)
Sodium sulfide nonahydrate
SN/T 3936-2014
Determination of sodium sulfide in gourmet powder for export
KS M 8230-2018
Sodium sulfide nonahydrate
HB 20055.3-2011
Methods for analysis of chemical milling solutions for aluminum alloy-Part 3:Determination of sodium sulfide content by iodometry
HG/T 2964-1984
Sodium hydrosulphide for industrial use-Determination of the content of sodium hydrosulphide and sulphide