Chemical products for industrial use -- General method for determination of traces of sulphur compounds, as sulphate, by reduction and titrimetry

رقم المستند: NL ISO 6228 : 2009
القطاع: chemical Technology
TC: NL TC 47
ICS: 71.040.40
This International Standard specifies a general reduction and titrimetric method for the determination, as sulphate, of trace quantities of sulphur compounds in Chemical products for in- dustrial use. During the analysis, use only reagents of recognized analytical grade and only distilled water or water of equivalent purity. 4.1 Acetone. The International Standard relating to the Chemical product to which the method is to be applied shall specify the method by which the test Portion should be treated in Order to convert the sulphur compounds to sulphate, if necessary, together with any modifications to the general procedure that may be needed.