GB/T 7351-2013Fiber grade polyvinyl alcohol resins (English PDF)
纤维级聚乙烯醇树脂
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 17, 2013
Implementation date
October 15, 2014
Scope
GB/T 7351-2013 is the English-translated version of 纤维级聚乙烯醇树脂.
GB/T 7351-2013 is the Chinese standard "Fiber grade polyvinyl alcohol resins". Its scope clause reads: This standard specifies the terms and definitions fiber grade polyvinyl alcohol resin, naming, appearance, technical requirements, test methods, inspection rules And signs, packaging, transportation and storage requirements.
This standard applies to high base and low alkali alcoholysis alcoholysis process the obtained fiber grade polyvinyl alcohol resin. Its clauses include terms and definitions.
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Document preview — GB/T 7351-2013
National Standard of the People's Republic of China
- ICS
- 59.060.20
- Classification
- W 51
- Replacing
- GB/T 7351-1997
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 3.1 Coloring degree
- 3.2 Degree of swelling
1 Scope
This standard specifies the terms and definitions fiber grade polyvinyl alcohol resin, naming, appearance, technical requirements, test methods, inspection rules
And signs, packaging, transportation and storage requirements.
This standard applies to high base and low alkali alcoholysis alcoholysis process the obtained fiber grade polyvinyl alcohol resin.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 191 Packaging - Pictorial signs
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 603 chemical reagent in test methods - Preparations with
GB/T 6678-2003 General Principles for Sampling Chemical Products
GB/T 6679-2003 General rules for sampling solid chemical products
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 7568.4-2002 Textiles Tests for color fastness polyester adjacent fabric specifications
GB/T 8170 repair value expressed about the rules and limit values and judgment
GB/T 12010.1-2008 plastic polyvinyl alcohol (PVAL) materials - Part 1. Designation system and basis
GB/T 12010.2-2010 plastic polyvinyl alcohol (PVAL) materials - Part 2. Performance measurement
GB/T 12010.3-2010 plastic polyvinyl alcohol (PVAL) materials - Part 3. Specification
GB/T 12010.5-2010 plastic polyvinyl alcohol (PVAL) materials - Part 5. Determination of the average degree of polymerization
GB/T 12010.7-2010 plastic polyvinyl alcohol (PVAL) materials - Part 7. Determination of sodium hydroxide
GB/T 12010.8-2010 plastic polyvinyl alcohol (PVAL) materials - Part 8. Determination of transparency
JJF1070 prepackaged goods measured net content inspection rules
JJG178 ultraviolet, visible, near-infrared spectrophotometer test procedures
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Coloring degree
A certain degree of concentration of the aqueous solution of polyvinyl alcohol in the action of an alkali, wherein the coloring group (a carbonyl group, and aldehyde) colored in light transmittance
FIG.
3.2 Degree of swelling
Polyvinyl alcohol resin soaked in water swelling degree 15min, quality before and after immersion increased percentage.
......
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
Similar standards
Editions of GB/T 7351
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7351-2013 | Fiber grade polyvinyl alcohol resins | current edition | Current |
| GB/T 7351-1997 | Fiber grade polyvinyl alcohol resins | previous edition | Superseded |
This page sells the current edition, GB/T 7351-2013. Earlier editions are listed for reference only.
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