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GB/T 15789-2016: Geotextiles and geotextile-related products -- Determination of water permeability characteristics normal to the plane, without load
Status: Valid GB/T 15789: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15789-2016 | English | 279 |
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Geotextiles and geotextile-related products -- Determination of water permeability characteristics normal to the plane, without load
| Valid |
GB/T 15789-2016
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| GB/T 15789-2005 | English | 559 |
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Geotextiles and geotextile-related products -- Determination of water permeability characteristics normal to the plane, without load
| Obsolete |
GB/T 15789-2005
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| GB/T 15789-1995 | English | 279 |
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3 days [Need to translate]
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Geotextile--Determination of water flow
| Obsolete |
GB/T 15789-1995
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PDF similar to GB/T 15789-2016
Basic data | Standard ID | GB/T 15789-2016 (GB/T15789-2016) | | Description (Translated English) | Geotextiles and geotextile-related products -- Determination of water permeability characteristics normal to the plane, without load | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | W04 | | Classification of International Standard | 59.080.70 | | Word Count Estimation | 14,115 | | Date of Issue | 2016-12-13 | | Date of Implementation | 2017-07-01 | | Older Standard (superseded by this standard) | GB/T 15789-2005 | | Regulation (derived from) | National Standard Notice No.93 of 2016 | | Issuing agency(ies) | General Administration of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 | GB/T 15789-2016: Geotextiles and geotextile-related products -- Determination of water permeability characteristics normal to the plane, without load
---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.
Geotextiles and geotextile-related products - Determination of water imperceptive normal to the plane, without load
ICS 59.080.70
W04
National Standards of People's Republic of China
Replace GB/T 15789-2005
Geotextile and its related products
Determination of vertical infiltration characteristics at no load
Geotextilesandgeotextile-relatedproducts-Determination ofwater
permeabilitycharacteristicsnormaltotheplane, withoutload
(ISO 11058..2010, MOD)
2016-12-13 released
2017-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 15789-2005 "Determination of Vertical Permeability of Geotextiles and Related Products without Load", and
GB/T 15789-2005 compared to the main technical changes are as follows.
Update the reference standard information;
--- flow rate index VIH50 simplified to VH50;
--- adjustment 4.3,6.2.1a), 6.2.2a), 6.4.2 "note" as the standard text;
--- 5.2.6 The accuracy of the cylinder is changed from 10cm3 to 1% of the measuring range, and if the flow rate is calculated by the volume of water,
Accurate to 1% of the measuring range of the cylinder; if the flow rate is calculated by the mass of the water, it should be accurate to 1%
- 5.3.4 What's New "If the flow rate is calculated by the volume of water, the size of the cylinder should not exceed twice the volume of the collected water"
--- 6.2.4 in the "head accurate to 1mm" modified to "head accurate to 3%";
- increase by 5.4.5 and 6.4.5;
- append Appendix C, Appendix C to Appendix D.
This standard uses the re-drafting method to modify ISO 11058..2010 "geotextile and its related products without load when the vertical penetration characteristics
Of the determination ".
The technical differences between this standard and ISO 11058..2010 are as follows.
--- to increase the scope of application of the standard, to facilitate the reader to determine whether the use of the method.
--- on the normative reference documents, the standard made a specific technical differences in the adjustment to meet China's technical conditions, adjust the situation
The situation is reflected in Chapter 2, "Normative references", as follows.
Replace GB 2854 with international standard GB/T 4889 (see 4.3);
Replace GB 5813 (see 5.2.3 and 6.2.3) with GB/T 7489 with an international standard;
Replace GB 9862 (see 4.2) with GB/T 13760 equivalent to international standards;
• replace ISO 10320 [see 7c) with GB/T 14798 equivalent to the international standard.
--- Added 3.1 terms and definitions of the note, note the increase in the head of the optional range, so that the 3.1 definition more in line with the standard content.
--- 5.2.4 in the "stopwatch accurate to 0.2s" modified to "stopwatch accurate to 0.1s", so that the results recorded more accurate.
--- 5.2.5 in the "thermometer accurate to 0.5 ℃" modified to "thermometer accurate to 0.2 ℃", so that the results recorded more accurate.
--- 5.3.6 in the "water temperature accurate to 0.5 ℃" modified to "water temperature accurate to 0.2 ℃", so that the results recorded more accurate.
- Calculate the coefficient of variation in 5.4.3 and 6.4.3 to verify the stability of the test data to ensure the accuracy of the results.
--- increased 5.4.4 and 5.4.5, permeability coefficient and permeability is a measure of geotextile permeability of the important indicators, the value reflects the water
The ability to geotextile.
--- 6.2.5 "Thermometer accurate to 0.5 ℃" modified to "thermometer accurate to 0.2 ℃" to record the results more accurate.
--- 6.3.5 "water temperature accurate to 0.5 ℃" modified to "water temperature accurate to 0.2 ℃", so that the results recorded more accurate.
--- increased 6.4.4 and 6.4.5, permeability coefficient and permeability is a measure of geotextile permeability of the important indicators, the value reflects the water
The ability to geotextile.
This standard is proposed by China Textile Industry Federation.
This standard is under the jurisdiction of the National Textile Standardization Technical Committee (SAC/TC209).
The drafting unit of this standard. National Textile Products Quality Supervision and Inspection Center, Textile Industry Standardization Institute, Hongxiang new materials limited
Company, Shanghai Survey and Design Institute.
The main drafters of this standard. Gong Yingqiu, Liu Tao, Cui Zhanming, Huo Shuhuai, Zhang Qiping.
This standard replaced the previous version of the standard release.
GB/T 15789-1995, GB/T 15789-2005.
Geotextile and its related products
Determination of vertical infiltration characteristics at no load
1 Scope
This standard specifies two methods of measuring the vertical permeability of geotextiles and their related products in a single layer. constant head method
And descending head method.
This standard applies to all types of geotextiles and their related products, but does not apply to the composite materials containing film materials.
Note. If the overall penetration of the geotextile and its related products has been pre-determined, in order to control the quality of the material, only 50mm head flow
Speed index.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 4889 Statistical analysis and interpretation of data The estimation and testing of mean and variance of normal distribution (GB/T 4889-2008,
ISO 2854. 1976, MOD)
GB/T 7489 Determination of dissolved oxygen in water (I/O 7)
GB/T 13760 Geosynthetics Sampling and sample preparation (GB/T 13760-2009, ISO 9862..2005, IDT)
GB/T 14798 Geosynthetics Field identification (GB/T 14798-2008, ISO 10320..1999, IDT)
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Flow velocity index
VH50
Samples on both sides of the head when the difference is 50mm when the flow rate, accurate to 1mm/s.
Note. You can also take 100mm, 150mm and other head when the difference between the flow rate, and VHn said (n for the above a head difference value).
4 sample
4.1 Release requirements
The sample shall not be folded and minimize the number of times taken to avoid affecting its structure. The sample shall be placed in a flat place and no pressure shall be applied.
4.2 Sampling
The sample was taken from the sample according to GB/T 13760.
4.3 Quantity and size
Five samples were cut from the sample and the sample size was adapted to the test apparatus.
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