ISO 2997 : 1974(R2018)现行
PHOSPHORIC ACID FOR INDUSTRIAL USE - DETERMINATION OF SULPHATE CONTENT - METHOD BY REDUCTION AND TITRIMETRY
出版：International Organization for Standardization
专家解读视频
This International Standard specifies a method, by reduction and titrimetry, for the determination of the sulphate content of phosphoric (orthophosphoric) acid for industrial use and is applicable to sulphate contents, expressed as SO 4, equal to or greater than 0,000 5 % (m/m).
PN ISO 2997 : 2000 - Identical
NBN T 03 263 : 1980 - Identical
PN ISO 2997 : 2000 - Identical
NBN EN 1209 : 2004 - Identical
NBN EN 1207 : 2005 - Identical
NBN EN 1202 : 2005 - Identical
BS 4258-3(1989) : 1989 - Similar to
NBN EN 1206 : 2005 - Identical
NBN T 03 263 : 1980 - Identical
NBN EN 1208 : 2005 - Identical
