GB/T 13762-2009 English PDF

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GB/T 13762-2009: Geosynthetics -- Test method for the determination of mass per unit area of geotextiles and geotextile-related products
Status: Valid

GB/T 13762: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13762-2009	149	Add to Cart	2 days	Geosynthetics -- Test method for the determination of mass per unit area of geotextiles and geotextile-related products	Valid
GB/T 13762-1992	199	Add to Cart	2 days	Geotextiles--Determination of mass per unit area	Obsolete

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GB/T 17638   GB/T 33276   GB/T 17642   GB/T 13761.1   GB/T 13763   GB/T 13760   

Basic data

Standard ID: GB/T 13762-2009 (GB/T13762-2009)
Description (Translated English): Geosynthetics -- Test method for the determination of mass per unit area of geotextiles and geotextile-related products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W59
Classification of International Standard: 59.080.70
Word Count Estimation: 5,596
Date of Issue: 2009-06-19
Date of Implementation: 2010-02-01
Older Standard (superseded by this standard): GB/T 13762-1992
Quoted Standard: GB/T 6529; GB/T 13760
Adopted Standard: ISO 9864-2005, MOD
Regulation (derived from): National Standard Approval Announcement 2009 No.9 (Total No.149)
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 geotextile and the determination of the quality of the product concerned unit area of geotextiles. This standard applies to all geotextiles and geotextile related products.

GB/T 13762-2009: Geosynthetics -- Test method for the determination of mass per unit area of geotextiles and geotextile-related products

---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.
Geosynthetics. Test method for the determination of mass per unit area of \u200b\u200bgeotextiles and geotextile-related products ICS 59.080.70 W59 National Standards of People's Republic of China Replacing GB/T 13762-1992 Geosynthetics geotextiles and geotextile related Determination of mass per unit area of \u200b\u200bthe product (ISO 9864.2005, MOD) Posted 2009-06-19 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard uses the redrafted law revision adopted ISO 9864.2005 "Geosynthetics geotextiles and geotextile related products unit Method for determining the area of \u200b\u200bquality. " This standard ISO 9864.2005 The main differences are as follows. --- Normative references in the international standard in place by the corresponding national standards. Wherein ISO 554 "standard atmospheric testing" by the repair Change of use ISO 139 GB/T 6529 instead. This standard replaces GB/T 13762-1992 "method for the determination geotextile mass per unit area." This standard compared with GB/T 13762-1992 main changes are as follows. --- Standard name was changed to "Determination of geotextile and geotextile-related quality of the product per unit area of \u200b\u200bgeosynthetics"; --- Remove the Normative references cited in standard GB 8170; --- The scope of the words "all geotextiles and geotextile-related products"; --- Deleted Chapter 4 instruments and appliances; --- Original standard Chapter 5 - Chapter 7, incorporated as standard in Chapter 4, as amended; --- Increased geotextile related products sampling instructions; --- Original standard Note 1 placed in the text (see 4.1); --- Weighing accuracy by a 0.001g to 10mg; Results --- mass per unit area is represented by a "press GB 8170 decimals a" to "rounding the result to 1g/m2". The standard proposed by China Textile Industry Association. This standard by the National Standardization Technical Committee on Basic Standards Subcommittee Textiles (SAC/TC209/SC1) centralized. This standard was drafted. South-China Textile Industry Testing Center, Textile Industry Research Institute of Standardization. The main drafters of this standard. Dong Xiang, Zhang Minjie, Wuzhong Fang, Zhang Hui. This standard replaces the standards previously issued as follows. --- GB/T 13762-1992. Geosynthetics geotextiles and geotextile related Determination of mass per unit area of \u200b\u200bthe product

1 Scope

This standard specifies the method for determination of geotextile and related quality product per unit area of \u200b\u200bgeotextiles. This standard is applicable to all geotextiles and geotextile related products.

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 6529 Textiles The humidity and atmospheric testing standard (GB/T 6529-2008, ISO 139.2005, MOD) GB/T 13760 Geosynthetics sampling and sample preparation (GB/T 13760-2009, ISO 9862.2005, IDT) Principle 3 Clipping size of the known square or circular specimens from the entire width and length of the sample, and it weighed, and then calculate the unit area Product quality. Step 4 4.1 Sample Preparation According to GB/T 13760 regulations sampled and cut an area of \u200b\u200b100cm2 sample of at least 10. The sample should be representative. Measurement accuracy of 0.5%. If the sample is not representative of the product 100cm2 entire structure, Use of larger area samples to ensure the accuracy of measurement. For a relatively large mesh geotextile related products, such as geogrid or geotextile net, should constitute the mesh nodes connect two units Cut the center of the specimen. Longitudinal and transverse specimens should contain at least five constituent unit. It should be separately measured area of \u200b\u200beach sample. The sample standard atmospheric conditions in GB/T 6529 provisions downward wet 24h, if the humidity can indicate the omission of the step of the test results do not Influence, this step can be omitted. Weighing 4.2 Separately for each sample weighing accuracy of 10mg.

5 The results are shown

According to equation (1) is calculated for each sample mass per unit area. ρA = M1 × 10000 (1) Where. ρA --- mass per unit area in grams per square meter (g/m 2); M1 --- sample mass, in grams (g); A --- area of \u200b\u200bthe sample, in units of square centimeters (cm2). Calculate 10 samples the average mass per unit area, rounding the result to 1g/m2, and calculate the coefficient of variation. ......

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