This standard specifies the technical requirements, test methods, inspection rules, signs, packaging, transportation, storage, quality certificate and order form (or contract content) of vitriol. This standard is applicable to vitriol used in the chemical industry and electroplating industry.
GB/T 8184-2020 Referenced Document
GB/T 34609.1 Method for chemical analysis of rhodium compounds—Part 1: Determination of rhodium content—Gravimetric method with hexaammine cobalt nitrate
GB/T 34609.2 Method for chemical analysis of rhodium compounds—Part 2: Determination of silver,gold,platinum,palladium,iridium,ruthenium,lead,nickel,copper,iron,tin,zinc,magnesium,manganese,aluminium,calcium,sodium,potassium,chromium and silicon contents—Inductively c
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values