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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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SURFACE ACTIVE AGENTS - PREPARATION OF WATER WITH KNOWN CALCIUM AND MAGNESIUM HARDNESS
01-04-2011
12-01-2013
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
Defines a method of preparing water of known calcium and magnesium hardness for use in testing surface active agents and products containing them.
| Committee |
TC 276
|
| DocumentType |
Draft
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| 09/30199361 DC : 0 | Identical |
| ISO 648:2008 | Laboratory glassware — Single-volume pipettes |
| ISO 1773:1997 | Laboratory glassware — Narrow-necked boiling flasks |
| EN ISO 1042:1999 | Laboratory glassware - One-mark volumetric flasks (ISO 1042:1998) |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| EN ISO 385:2005 | Laboratory glassware - Burettes (ISO 385:2005) |
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