NEN EN ISO 4823 : 2015

Foreword
1 Scope
2 Normative reference
3 Definitions
4 Classification
5 Biocompatibility advisory
6 Requirements for characteristics and properties
  6.1 Components colours
  6.2 Mixing time(hand-spatulated or hand-kneaded mixes)
  6.3 Working time
  6.4 Compatibility with gypsum
7 Sampling
8 Test methods- General
  8.1 Laboratory conditions
  8.2 Apparatus function verification
  8.3 Material manipulation and specimen preparation
  8.4 Pass/fail determinations
  8.5 Expression of test results
9 Test methods-Specific
  9.1 Mixing-time test
  9.2 Consistency test
  9.3 Working-time test
  9.4 Detail reproduction test
  9.5 Linear dimensional change test
  9.6 Test for compatibility with gypsum
  9.7 Elastic recovery test
  9.8 Strain-in-compression test
10 Requirements for information in manufacturer's
       instructions
  10.1 General
  10.2 Identifying information
  10.3 Specific instructions for use
11 Requirements for packaging and labelling
  11.1 Packaging requirements
  11.2 labelling requirements
Annex A (informative) Working-time test instrument
         components - Possible sources
Bibliography

Defines the requirements and tests that the state-of-the art body of knowledge suggests for helping determine whether the elastomeric impression materials, as prepared for retail marketing, are of the quality needed for their intended purposes.