PREN 12829 : DRAFT 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
04-01-2011
01-12-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Procedure
7.1 Preparation of stock solution
7.1.1 Calcium stock solution
7.1.2 Magnesium stock solution
7.2 Determination of calcium or magnesium
content of stock solution
7.3 Preparation of water of known calcium
or magnesium hardness
Annex A (informative) - Units used to express
water hardness
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