EN 1744-1:2009+A1:2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Reagents
5 Apparatus
6 General requirements for testing
7 Determination of water-soluble chloride salts using
   the Volhard method (Reference method)
8 Determination of water-soluble chloride salts by
   potentiometry (Alternative method)
9 Determination of water-soluble chloride salts using
   the Mohr method (Alternative method)
10 Determination of water-soluble sulfates
11 Determination of total sulfur content
12 Determination of acid soluble sulfates
13 Determination of acid soluble sulfides
14 Determination of components affecting the surface finish
   of concrete
15 Determination of organic components affecting the
   setting and the hardening of cement
16 Determination of water solubility
17 Determination of loss on ignition
18 Determination of free lime in steel slag
19 Determination of unsoundness of blast-furnaces and
   steel slags
Annex A (informative) - Precision
Bibliography

This European Standard specifies procedures for the chemical analysis of aggregates. It specifies the reference procedures and, in certain cases, an alternative method which can be considered as giving equivalent results.Unless otherwise stated, the test methods specified in this standard may be used for factory production control, for audit tests or for type tests.This standard describes the reference methods used for type testing and in cases of dispute (and alternatives methods) for chemical analyses of aggregates. For the purpose of type testing and in cases of dispute only the reference method should be used. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established.