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