BS EN ISO 62:1999

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Test specimens
  5.1 General
  5.2 Square-shaped test specimens for homogeneous
      plastics
  5.3 Test specimens of reinforced plastics affected by
      anisotropic diffusion effects
  5.4 Tubular test specimens
  5.5 Rod-shaped test specimens
  5.6 Specimens cut from finished products, extrusion
      compounds, sheets or laminates
6 Test conditions and procedures
  6.1 General
  6.2 General conditions
  6.3 Method 1: Determination of amount of water absorbed
      after immersion in water at 23 degrees C
  6.4 Method 2: Determination of amount of water absorbed
      after immersion in boiling water
  6.5 Method 3: Determination of water-soluble matter lost
      during immersion
  6.6 Method 4: Determination of amount of water absorbed after
      exposure to 50% relative humidity
7 Expression of results
  7.1 Percentage by mass of water absorbed
  7.2 Determination of the water content at saturation and the
      water diffusion coefficient using Fick's laws
8 Precision
9 Test report
Annex A (informative) - Correlation between water absorption by
        test specimens and Fick's diffusion laws
Annex B (informative) - Precision statement
Bibliography

Specifies a procedure for determining the moisture absorption properties in the "through-the-thickness" direction of flat or curved-form solid plastics.