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GB/T 7351-2013: Fiber grade polyvinyl alcohol resins
Status: Valid GB/T 7351: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7351-2013 | English | 279 |
Add to Cart
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3 days [Need to translate]
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Fiber grade polyvinyl alcohol resins
| Valid |
GB/T 7351-2013
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| GB/T 7351-1997 | English | 279 |
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3 days [Need to translate]
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Polyvinyl alcohol resins for fibre grade
| Obsolete |
GB/T 7351-1997
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| GB/T 7351-1987 | English | RFQ |
ASK
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3 days [Need to translate]
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Polyvinyl alcohol for synthetic fiber use
| Obsolete |
GB/T 7351-1987
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PDF similar to GB/T 7351-2013
Basic data | Standard ID | GB/T 7351-2013 (GB/T7351-2013) | | Description (Translated English) | Fiber grade polyvinyl alcohol resins | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | W51 | | Classification of International Standard | 59.060.20 | | Word Count Estimation | 12,165 | | Older Standard (superseded by this standard) | GB/T 7351-1997 | | Quoted Standard | GB/T 191; GB/T 601; GB/T 603; GB/T 6678-2003; GB/T 6679-2003; GB/T 6682; GB/T 7568.4-2002; GB/T 8170; GB/T 12010.1-2008; GB/T 12010.2-2010; GB/T 12010.3-2010; GB/T 12010.5-2010; GB/T 12010.7-2010; GB/T 12010.8-2010; JJF 1070; JJG 178 | | Regulation (derived from) | National Standards Bulletin No. 25 of 2013 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | 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- | GB/T 7351-2013: Fiber grade polyvinyl alcohol resins---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Fiber grade polyvinyl alcohol resins
ICS 59.060.20
W51
National Standards of People's Republic of China
Replacing GB/T 7351-1997
Fiber grade polyvinyl alcohol resin
Issued on. 2013-12-17
2014-10-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 7351-1997 "fiber grade polyvinyl alcohol resin."
The main changes compared to 7351-1997 standard and GB/T as follows.
--- Standard English name from "Polyvinylalcoholresinsforfibregrade" adjusted "Fibergradepolyvinyl
alcoholresins ";
--- In the scope deleted formula and molecular weight;
--- Increase and update some of the references cited in normative documents;
--- Increasing the degree of coloring, the degree of swelling of terms and definitions;
--- Increased nomenclature;
--- The technical requirements, the adjustment of the volatile, sodium hydroxide, residual acetate, sodium acetate, purity, transparency, coloring degree, swelling degree of
Performance metrics;
--- Test method, volatile, sodium hydroxide, residual acetate, sodium acetate, purity, transparency, an average degree of polymerization of seven projects
Test methods, the use of direct GB/T 12010-2010 standard series; test methods coloring degree, as a normative Annex A;
Test Method for the degree of swelling, as a normative appendix B;
--- Modify the inspection rules, logo, content packaging, transportation and storage.
The standard proposed by China Textile Industry Association.
This standard by the Shanghai textile industry technical supervision of the centralized.
This standard was drafted. Anhui Wanwei Material Co., Ltd., China Petrochemical Group of Sichuan Vinylon Works, Shanghai Textile Industry
Technical supervision.
The main drafters of this standard. Tangcheng Hong, Wu Fusheng, Li Bin, Wang Lili, FENG Jia Fang, Lu Jiayun.
This standard replaces the standards previously issued as follows.
--- GB/T 7351-1987, GB/T 7351-1997.
Fiber grade polyvinyl alcohol resin
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 \u200b\u200band 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 stainingdegree
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 swelingdegree
Polyvinyl alcohol resin soaked in water swelling degree 15min, quality before and after immersion increased percentage.
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