GB/T 8139-2009Dewaxed shellac,Decolorized shellac,Decolorized and dewaxed shellac (English PDF)
脱蜡紫胶片、脱色紫胶片和脱色脱蜡紫胶片
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 12, 2009
Implementation date
November 1, 2009
Scope
GB/T 8139-2009 is the English-translated version of 脱蜡紫胶片、脱色紫胶片和脱色脱蜡紫胶片.
GB/T 8139-2009 is the Chinese standard "Dewaxed shellac,Decolorized shellac,Decolorized and dewaxed shellac". Its scope clause reads: This standard specifies the technical requirements dewaxing shellac, decolorized shellac and dewaxed shellac decolorized of sampling, test methods, inspection rules And signs, packaging, storage and transportation.
This standard applies to solvent dewaxing, decolorized with charcoal processing shellac. Its clauses include terms and definitions; sampling.
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Document preview — GB/T 8139-2009
National Standard of the People's Republic of China
- ICS
- 87.040
- Classification
- B 72
- Replacing
- GB/T 8139-1987
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 5 Sampling
1 Scope
This standard specifies the technical requirements dewaxing shellac, decolorized shellac and dewaxed shellac decolorized of sampling, test methods, inspection rules
And signs, packaging, storage and transportation.
This standard applies to solvent dewaxing, decolorized with charcoal processing shellac.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 8142-2008 Sampling method lac products
GB/T 8143-2008 lac product testing method
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
From purple or collagen gel particles shellac wax off with a solvent refined processing of shellac.
3.2
From purple or collagen gel particles shellac decolorized with charcoal processing light purple waxy film.
3.3
From purple collagen gel particles or dewaxed shellac decolorized with charcoal and then processed substantially wax-free light-colored shellac.
4. Technical Requirements
Shellac levels should comply with the technical specifications given in Table 1.
5 Sampling
According to GB/T 8142-2008 requirements for sampling and preparation of laboratory samples.
Table 1 Technical Specifications
Index Name
Dewaxed shellac decolorized shellac dewaxed shellac decolorized
One two one two one two
Color index <= 18 - 2 5 2 5
Hot ethanol insolubles /% <= 0.2 0.4 0.5 0.5 0.2 0.4 […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 8139
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 8139-2009 | Dewaxed shellac,Decolorized shellac,Decolorized and dewaxed shellac | current edition | Current |
| GB/T 8139-1987 | Dewaxed shellac,Decolorized shellac,Decolorized and dewaxed shellac | previous edition | Superseded |
This page sells the current edition, GB/T 8139-2009. Earlier editions are listed for reference only.
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