(Superseding IS 12229 : 1987)

Reaffirmed 2022

1. Scope

1.1 This standard prescribes the positive list of constituents of polyalkylene terephthalates (PET and PBT), namely the polymers and necessary additives, which will be regarded as safe for use in contact with foodstuffs and pharmaceuticals, when properly processed and when present in the prescribed limits of concentration. This standard also prescribes the limits of residual catalysts

1.2 This standard also specifies the requirements and methods of sampling and test for polyalkylene terephthalates (PET and PBT) for the manufacture of plastic items used in contact with foodstuffs and pharmaceuticals.

1.3 This standard does not purport to establish the suitability of the ingredients and packaging media with particular foodstuffs or pharmaceutical from other than toxicological considerations a by-product during condensation and subsequent processing of the polymer.

2. REFERENCES

The standards given below contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revisions, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.

IS No. Title

4905 : 2015 Random sampling and randomization procedures (first revision)

9833 : 2014 List of pigments and colorants for use in plastics in contact with foodstuffs, pharmaceuticals and drinking water (first revision)

9845 : 1998 Determination of overall migration of constituents of plastics materials and articles intended to come in contact with foodstuffs - Method of analysis (second revision)

10146 : 1982 Specification for polyethylene for its safe use in contact with foodstuffs, pharmaceuticals and drinking water