HG/T 4021-2008
Chemical reagent-Sodium pyrosulfite
HG/T 2967-2010
Anhydrous sodium sulphite for industrial use
GB/T 22408-2008
Photography - Processing chemicals - Specifications for anhydrous sodium sulfite
HG/T 2826-2008
Sodium metabisulphite for industrial use
GB/T 22401-2008
Photography - Processing chemicals - Specifications for anhydrous sodium metabisulfite
GB 1886.8-2015
HG/T 2074-2011
GB 1886.7-2015
GB 1886.46-2015
HG/T 3472-2000
Chemical reagent Sodium sulfite anhydrous
GB/T 15900-1995
Chemical reagent—Sodium pyrosulfite
AQ 3011-2007
Safety requirements of hydrosulfites packing
HG/T 3022-1989
Photographic grade sodium sulfite, anhydrous
GB/T 13905-1992
Water quality--Determination ofTNT--Sodium sulfite spectrophotometry
GB 1893-2008
Food additive—Sodium metabisulphite
HG 2682-1995
KS M 1422-2015(2020)
Sodium pyrosulfite(Sodium metabisulfite)
GB 1894-2005
Food additive—Anhydrous sodium sulphite
HJ 598-2011
GB 1893-1998
Food additive Sodium metabisulphite