This standard specifies the technical requirements, test methods, inspection rules, packaging and marking of the chemical reagent cobalt sulfate heptahydrate (cobalt sulfate). This standard applies to the inspection of the chemical reagent cobalt sulfate heptahydrate (cobalt sulfate).
HG/T 2631-1994 history
2005HG/T 2631-2005 Chemical reagent Cobalt (Ⅱ) sulfate heptahydrate
1994HG/T 2631-1994 Chemical Reagent Cobalt Sulfate Heptahydrate (Cobalt Sulfate)