BS ISO 418:2001
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
01-25-2002
Foreword
Introduction
1 Scope
2 Normative references
3 General
3.1 Physical properties
3.2 Hazardous properties
3.3 Storage
4 Requirements
5 Reagents and glassware
6 Sampling
7 Test methods
7.1 Assay
7.2 Mass fraction of insoluble matter (as a precipitate
of calcium, magnesium and ammonium hydroxides)
7.3 Mass fraction of heavy metals
7.4 Mass fraction of iron
7.5 Alkalinity (as Na2CO3)
7.6 Reaction to ammoniacal silver nitrate
7.7 Mass fraction of thiosulfate (as Na2s2O3)
7.8 Appearance of solution
Table 1 - summary of requirements
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