NEN EN 1744-1 : 2009 + A1 2012

Foreword
1 Scope
2 Normative references
3 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
    14.1 Examination for the presence of reactive iron
          sulfide particles
    14.2 Determination of lightweight contaminators
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
    18.1 General
    18.2 Determination of free lime by complexometry
          (reference method)
    18.3 Determination of free lime by conductometry
          (alternative method)
    18.4 Determination of free lime by acidimetry
          (alternative method)
19 Determination of unsoundness of blast-furnaces and
    steel slags
    19.1 Determination of dicalcium silicate disintegration
          of air-cooled blast-furnace slag
    19.2 Determination of iron disintegration of air-cooled
          blast-furnace slag
    19.3 Determination of the expansion of steel slag
Annex A (informative) Precision
Annex B (informative) Bibliography

Defines procedures for the chemical analysis of aggregates. It also defines the reference procedures and, in certain cases, an alternative method which can be considered as giving equivalent results.