GB/T 8137-2009Seed lac (English PDF)
颗粒紫胶
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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 8137-2009 is the English-translated version of 颗粒紫胶.
GB/T 8137-2009 is the Chinese standard "Seed lac". Its scope clause reads: This standard specifies the technical requirements of shellac particles, sampling, test methods, inspection rules and signs, packaging, storage and transportation.
This standard applies to purple collagen gel by crushing, screening, color wash, particulate shellac dried after processing. Its clauses include terms and definitions; sampling; test methods.
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Document preview — GB/T 8137-2009
National Standard of the People's Republic of China
- ICS
- 65.020
- Classification
- B 72
- Replacing
- GB/T 8137-1987
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 technical requirements
- 5 Sampling
- 6 Test Method
- 7 Inspection rules
- 8 signs, packaging, storage and transport
1 Scope
This standard specifies the technical requirements of shellac particles, sampling, test methods, inspection rules and signs, packaging, storage and transportation.
This standard applies to purple collagen gel by crushing, screening, color wash, particulate shellac dried after processing.
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
Crushed by a purple plastic collagen, screening, color wash, particulate shellac dried after processing.
4. Technical Requirements
All levels of particulate shellac Technical indicators shall comply with the technical requirements given in Table 1.
Table 1 particles shellac technical requirements
Index Name grade
Level 1 2 3 4 5
Color index/number <= 8.0 10.0 12.0 18.0 24.0
Thermosetting time (170 °C ± 0.5 °C)/min >= 7 7 6 5 5
Hot ethanol insolubles /% <= 3.0 3.5 4.0 5.0 7.0
Volatiles (water) /% <= 2.5 2.5 2.5 2.5 2.5
Water soluble matter /% <= 1.0 1.0 1.0 1.0 1.0
Waxy /% <= 5.5 5.5 5.5 5.5 5.5
Ash /% -
Size/mm -
5 Sampling
According to GB/T 8142-2008 requirements for sampling and sample preparation.
6 Test methods
6.1 Determination of color index
Conducted in accordance with GB/T 8143-2008 Chapter 5 Methods II.
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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.
Similar standards
Editions of GB/T 8137
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 8137-2009 | Seed lac | current edition | Current |
| GB/T 8137-1987 | Seed lac | previous edition | Superseded |
This page sells the current edition, GB/T 8137-2009. Earlier editions are listed for reference only.
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