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HG/T 4457-2012Plastics - Determination of exudation of plasticizers under humid conditions (English PDF)

塑料增塑剂在潮湿条件下渗出的测定

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

December 28, 2012

Implementation date

June 1, 2013

Scope

HG/T 4457-2012 is the English-translated version of 塑料增塑剂在潮湿条件下渗出的测定.

HG/T 4457-2012 is a Chinese chemical industry test standard for plastics, concerned with how far plasticizers exude from a material held in humid conditions. It provides two procedures for the measurement.

In the first, method A, the specimen is suspended inside a sealed container filled with distilled water, and a second method is given alongside it. The standard falls under the Chinese classification G31 and ICS 83.080.01, the general heading for plastics, and it quotes GB/T 2423.3-2006, GB/T 2918-1998, GB/T 6682, GB/T 7141-2008 and GB/T 9352-2008. Issued on 28 December 2012, it has applied since 1 June 2013.

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Document preview — HG/T 4457-2012

National Standard of the People's Republic of China

ICS: 83.080.01

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Foreword

HG/T 4457-2012 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 28 December 2012 and has been in force since 1 June 2013.

2 Scope

This standard is a Chinese chemical industry test standard for plastics, concerned with how far plasticizers exude from a material held in humid conditions. It provides two procedures for the measurement. In the first, method A, the specimen is suspended inside a sealed container filled with distilled water, and a second method is given alongside it. The standard falls under the Chinese classification G31 and ICS 83.080.01, the general heading for plastics, and it quotes GB/T 2423.3-2006, GB/T 2918-1998, GB/T 6682, GB/T 7141-2008 and GB/T 9352-2008.

3 Normative references

HG/T 4457-2012 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 2423.3-2006

GB/T 2918-1998

GB/T 6682

GB/T 7141-2008 — Plastics -- Methods of heat aging

GB/T 9352-2008 — Plastic -- Compression moulding of test specimens of thermoplastic materials

4 About this standard

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

English translation: about 15 pages

5 Classification and status

International classification (ICS): 83.080.01

Chinese Standard Classification (CCS): G 31

Prefix HG/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

HG/T 4453-2012Plastics - Technical specification for controlled use of plasticizers

Similar standards

HG/T 4456-2012|HG/T 4454-2012|HG/T 4455-2012|HG/T 4458-2012|HG/T 4459-2012|GB/T 1844.3-2022

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