Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
5.1 Solid carbon dioxide
5.2 Liquid nitrogen
6 Apparatus
6.1 Sieve
6.2 Rotor mill
6.3 Rotating mechanical mixer
6.4 Sieve vibrator
6.5 Microscope
7 Procedure
7.1 Preparation of test material for regulating
the size and shape
7.2 Powder type of test material
7.2.1 Powder type of test material produced by
mechanical crushing
7.2.2 Separation of powder type of test material
by mechanical crushing
7.2.3 Measurement of size distribution of crushed
test material
7.2.3.1 Size distribution measurement by microscopy
7.2.3.2 Size distribution measurement by weighing
7.3 Film or sheet type of test material
7.4 Bulk and block types of test materials
7.5 Storage
8 Calculation and expression of results
8.1 Size distribution
9 Validity of preparation
10 Report of preparation
Annex A (informative) - Example of powder type test
material derived from polymer materials
mechanically crushed using a rotating mechanical
mixer
Annex B (informative) - Example of film type test material
derived from polymer material film
Annex C (informative) - Example of bulk type test material
derived from polymer products
Annex D (informative) - Proposed shape and size of test
materials according to ISO standards for
biodegradation of plastics
Bibliography