HG/T 4028-2008Silicone high temperature defoamers (English PDF)
有机硅高温消泡剂
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
April 23, 2008
Implementation date
October 1, 2008
Scope
HG/T 4028-2008 is the English-translated version of 有机硅高温消泡剂.
The recommended Chinese chemical industry standard HG/T 4028-2008 covers silicone high temperature defoamers. It specifies the product requirements, the sampling, the test methods, the inspection rules and the provisions for marking, labelling, packaging, transport and storage. Its purpose is the quality control of the silicone based defoamer intended for service at high temperature, a product used chiefly to suppress foam in high temperature dyeing processes. The sampling and analytical conventions it relies on are those of GB/T 1250-1989, GB/T 6678-2003 and GB/T 6682. Issued on 23 April 2008, it has applied since 1 October 2008.
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Document preview — HG/T 4028-2008
National Standard of the People's Republic of China
- ICS
- 71.100.01
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 4028-2008 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 1250-1989
GB/T 6678-2003
GB/T 6682
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 6678-2003 — General principles for sampling chemical products
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
HG/T 3066-2025 — Rubber compounding ingredients - Precipitated hydrated silica - Determination of loss on ignition of the dried sample
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