GB/T 731-2008 English PDF

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GB/T 731-2008: Gunny cloth and bags
Status: Valid

GB/T 731: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 731-2008	169	Add to Cart	3 days	Gunny cloth and bags	Valid
GB/T 731-1987	199	Add to Cart	2 days	Gunnybags--Technical requirements	Obsolete

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Basic data

Standard ID: GB/T 731-2008 (GB/T731-2008)
Description (Translated English): Gunny cloth and bags
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W33
Classification of International Standard: 59.080.30
Word Count Estimation: 7,789
Date of Issue: 2008-08-06
Date of Implementation: 2009-06-01
Older Standard (superseded by this standard): GB/T 731-1987; GB/T 732-1987; GB/T 733-1987; GB/T 734-1987; GB/T 735-1987; GB/T 736-1987; GB/T 737-1987
Quoted Standard: GB/T 2828.1-2003; GB/T 3923.1; GB/T 4666; GB/Y 4667; GB/T 4668; GB/T4669
Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125)
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 requirements for linen and sacks, test methods, inspection rules, packaging and identification technologies such content. This standard applies to jute, kenaf as the main raw linen and woven sacks.

GB/T 731-2008: Gunny cloth and bags

---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.
Gunny cloth and bags ICS 59.080.30 W33 National Standards of People's Republic of China Replacing GB/T 731 ~ 737-1987 Jute sacks and Posted 2008-08-06 2009-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 731-1987 "jute sacks of technical conditions", GB/T 732-1987 "grading stipulation jute sacks" GB/T 733-1987 "jute, linen test method", GB/T 734-1987 "jute sacks, packaging and labeling of linen" GB/T 735-1987 "jute, linen, acceptance", GB/T 736-1987 "jute burlap technical conditions" and GB/T 737-1987 "grading stipulation jute linen." This standard and GB/T 731-1987, GB/T 732-1987, GB/T 733-1987, GB/T 734-1987, GB/T 735- 1987, 736-1987 737-1987 main changes compared to the GB/T and GB/T as follows. --- Follows the GB/T 731 number, the original seven standards into one standard; --- Burlap sacks and technical conditions for the merger with the grading provisions of Chapter 3; --- Test methods as in Chapter 4, in using a common method, based on the simplified provisions; Content --- acceptance as specified in Chapter 5, subject to inspection rules, in reference to the original provisions on sampling plan cited GB/T 2828.1-2003 requirements; --- Remove the packaging, packaging volume and weight bales tolerance requirements. The standard proposed by China Textile Industry Association. This standard by the National Standardization Technical Committee Textile (SAC/TC209) centralized. This standard was drafted. Textile Industry Research Institute of Standardization. The main drafters of this standard. Zheng Yuying. This standard was first published in 1987, this is the first revision. Jute sacks and

1 Scope

This standard specifies the technical content and burlap sacks requirements, test methods, inspection rules, packaging and signs. This standard applies to jute, kenaf as raw materials and woven burlap sacks.

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 2828.1-2003 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample Programme (ISO 2859-1.1999, IDT) GB/T 3923.1 Textiles Tensile properties of fabrics - Part 1. breaking force and elongation Strip method GB/T 4666 Determination of the length of woven fabric (GB/T 4666-1995, eqv ISO 3933. 1976) GB/T 4667 machine fabric width measurement (GB/T 4667-1995, eqv ISO 3932. 1976) GB/T 4668 Woven fabrics Determination of density (GB/T 4668-1995, neq ISO 7211-2. 1984) Determination of length and mass per unit area GB/T 4669 Textiles - Woven fabrics unit mass (GB/T 4669-2008, ISO 3801. 1977, MOD)

3 Requirements

3.1 burlap 3.1.1 linen single organization by the plain, usually after finishing calender. 3.1.2 linen moisture regain of 14%, as a conventional mass conversion purposes. 3.1.3 linen varieties generally have six to number as identification, such as linen No. 1, No. 2 and so on linen. 3.1.4 thread count linen, breaking strength, conventional mass and width requirements specified in Table 1. Table 1 project index No. 1 No. 2 linen linen burlap No. 3 No. 4 No. 5 linen burlap linen 6 Tolerance density/ (Root/10cm) Warp density 47 43 43 39 39 35 ± 5% Weft density 43 43 39 39 35 35 ± 5% Breaking strength / Warp 580,520,500,440,420 360 -8% Zonal 540,520,460,440,380 360 -8% Conventional mass/(g/m2) 345 330 315 300 285 270 -5% ~ + 10% Width/cm agreement by both parties -1.5cm ~ + 2.5cm 3.1.5 linen appearance defects should not affect the use. 3.1.6 Other species called for agreement by both parties. 3.2 sacks 3.2.1 burlap sacks with one or two roll-up method or method chain sewing. Partnership with twine or other equivalent quality sewing thread, and ......

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