EN 14291:2004

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Surface tension
  4.2 Foam stability
  4.3 Corrosiveness
  4.4 pH-value
  4.5 Compatibility with non-hardening sealing materials
      and lubricants
  4.6 Flammability
  4.7 Freezing point
  4.8 Toxicological harmlessness
5 Test samples and documentation
  5.1 Test samples
  5.2 Documentation
6 Test methods
  6.1 Determination of surface tension
  6.2 Determination of foam stability
  6.3 Determination of corrosiveness
      6.3.1 Corrosion attack on steel
      6.3.2 Determination of anions
      6.3.3 Corrosion attack on spray can
  6.4 Determination of pH-value
  6.5 Test of the compatibility with non-hardening
      sealing materials and lubricants
  6.6 Determination of inflammability
  6.7 Determination of freezing point
7 Marking

This document specifies requirements and test methods of foam producing solutions for leak detection (hereafter called leak detection solution) used for leak detection of combustible gases of the 1st family (town gas), 2nd family (natural gas), and 3rd family (liquefied petroleum gases (LPG)) (see EN 437) within the temperature range of -15 °C or 0 °C to 50 °C. It is applicable for leak detection solutions, which are delivered as ready to use solutions, e.g. in spray cans.NoteThe leak detection solution covered by this document may also be used for other compressed gases. In this case the producer has to be consulted.