NATIONAL FOREWORD

This Indian Standard (First Revision) which is identical with ISO 20200 : 2015 ‘Plastics — Determination of the degree of disintegration of plastic materials under simulated composting conditions in a laboratory-scale test’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Methods of Sampling and Test for Plastics Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

This standard was originally published in 2009. The first revision of this standard has been undertaken to align it with the latest version of ISO 20200 : 2015.

In this revision, the major changes are as follows:

- the term “heavy metal” has been replaced by “regulated metal” (see 3.2).

- the term “commercial” has been replaced by “municipal or industrial” (see 4 and 5).

- the numerical value of R 42,8 % has been replaced by 42,3 % (see 13).

- the variability of the results has been raised from 10 % to 20 % (see 13).

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should beread as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.