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GB/T 19812.5-2019 PDF English

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GB/T 19812.5-2019: Plastic equipment for water saving irrigation -- Part 5: Sub-surface drip irrigation pipe
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GB/T 19812.5-2019279 Add to Cart 3 days Plastic equipment for water saving irrigation -- Part 5: Sub-surface drip irrigation pipe Valid

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GB/T 19812.5-2019: Plastic equipment for water saving irrigation -- Part 5: Sub-surface drip irrigation pipe


---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT19812.5-2019
Plastic equipment for water saving irrigation - Part 5. Sub-surface drip irrigation pipe ICS 23.040.20 G33 National Standards of People's Republic of China Plastic water saving irrigation equipment Part 5. Buried drip irrigation pipe Plasticequipmentforwatersavingirrigation- Part 5. Sub-surfacedripirrigationpipe (ISO 9261.2004, Agriculturalirrigationequipment-Emittersand emitpipe-Specificationandtestmethods, NEQ) Published on.2019-08-30 2020-03-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 19812 "plastic water-saving irrigation equipment" is divided into five parts. --- Part 1. Single-wing labyrinth drip irrigation belt; --- Part 2. Pressure-compensated dripper and drip irrigation pipe; --- Part 3. In-line drip irrigation pipe and drip irrigation belt; ---Part 4. Polyethylene (PE) hoses; --- Part 5. Buried drip irrigation pipe. This part is the fifth part of GB/T 19812. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the redrafting method with reference to ISO 9261.2004 "Technical specifications and test methods for drip and drip irrigation pipes for agricultural irrigation equipment. The degree of conformity with the ISO 9261.2004 is not equivalent. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part was proposed by the China Light Industry Federation. This part is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC48). This section drafted by. Daxie Water Conservation Group Co., Ltd., Shijiazhuang Development Zone Zhongshi Testing Equipment Co., Ltd., Hebei Runong Festival Water Technology Co., Ltd., Jilin Xifeng Water-saving Technology Co., Ltd., Jinglan Muhe Water-saving Equipment Co., Ltd., Gansu Yasheng Amet Water Saving Co., Ltd., Daxie Water Saving (Tianjin) Co., Ltd., Xinjiang Tianye Water Saving Irrigation Co., Ltd., Dahua Water Saving Technology Co., Ltd. Division, Light Industry Plastics Processing Application Research Institute (National Plastics Product Quality Supervision and Inspection Center), China Plastics Processing Industry Association Plastic Water Saving Device Materials Professional Committee, Ningxia Qinglong Plastic Pipe Co., Ltd. The main drafters of this section. Tian Xiaohong, Dang Xiaogang, Wang Qingli, Bi Shuming, Zhang Yanqin, Duan Xiaodong, Feng Houjun, Chen Lin, Wei Xin, Xu Haiyun, Li Ying, Chang Jun, Zhang Hongmei, Ru Fenghu. Plastic water saving irrigation equipment Part 5. Buried drip irrigation pipe

1 Scope

This part of GB/T 19812 specifies the terms and definitions, markings, materials, requirements, and tests for buried drip irrigation pipes (hereinafter referred to as drip irrigation pipes). Sample and test conditions, test methods, inspection rules, marking, packaging, transportation and storage. This section applies to buried drip irrigation pipes that use polyolefin as the main raw material to transport irrigation water.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2828.1-2012.Sampling procedures for counting sampling - Part 1. Quantitative inspection by batches Plan (ISO 2859-1.1999, IDT) GB/T 2918-2018 Standard environment for conditioning and testing of plastic specimens (ISO 291.2008, MOD) Thermoplastics -- Determination of tensile properties of thermoplastic pipes - Part 3. Polyolefin pipes (ISO 6259-3. 1997, IDT) GB/T 8806-2008 Determination of dimensions of plastic parts for plastics piping systems (ISO 3126.2005, IDT) GB/T 15819-2006 Test method for environmental stress cracking sensitivity caused by plugged pipe fittings for polyethylene (PE) pipes for irrigation Legal and technical requirements (ISO 8796.2004, MOD) GB/T 17187-2009 Technical specifications and test methods for drip and drip irrigation pipes for agricultural irrigation equipment (ISO 9261.2004, IDT) GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves GB/T 19466.6-2009 Plastic Differential Scanning Calorimetry (DSC) Part 6. Oxidation induction time (isothermal OIT) and oxygen Determination of the induced temperature (dynamic OIT) (ISO 11357-6.2008, MOD) GB/T 19812.3-2017 Plastic water-saving irrigation equipment - Part 3. Inlaid drip irrigation and drip irrigation SL571-2013 Water-saving irrigation equipment hydraulic basic parameters test method

3 Terms and definitions

GB/T 17187-2009, GB/T 19278-2018, GB/T 19812.3-2017 and the following terms and definitions apply In this document. 3.1 Submerged drip irrigation pipe sub-surfacedripirrigationpipe Drip irrigation pipe with anti-negative pressure blocking function under a certain soil depth. 3.2 Negative pressure blockage negativepressureplugging/negativepressureblockage During the use of the drip irrigation tube, the soil particles around the drip hole are sucked into the drip channel in the drip element due to the negative pressure, causing the drip irrigation tube to drip. The dripping function of the water component does not satisfy the required phenomenon. GB/T 19812.5-2019 Plastic equipment for water saving irrigation - Part 5. Sub-surface drip irrigation pipe ICS 23.040.20 G33 National Standards of People's Republic of China Plastic water saving irrigation equipment Part 5. Buried drip irrigation pipe Plasticequipmentforwatersavingirrigation- Part 5. Sub-surfacedripirrigationpipe (ISO 9261.2004, Agriculturalirrigationequipment-Emittersand emitpipe-Specificationandtestmethods, NEQ) Published on.2019-08-30 2020-03-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 19812 "plastic water-saving irrigation equipment" is divided into five parts. --- Part 1. Single-wing labyrinth drip irrigation belt; --- Part 2. Pressure-compensated dripper and drip irrigation pipe; --- Part 3. In-line drip irrigation pipe and drip irrigation belt; ---Part 4. Polyethylene (PE) hoses; --- Part 5. Buried drip irrigation pipe. This part is the fifth part of GB/T 19812. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section uses the redrafting method with reference to ISO 9261.2004 "Technical specifications and test methods for drip and drip irrigation pipes for agricultural irrigation equipment. The degree of conformity with the ISO 9261.2004 is not equivalent. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part was proposed by the China Light Industry Federation. This part is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC48). This section drafted by. Daxie Water Conservation Group Co., Ltd., Shijiazhuang Development Zone Zhongshi Testing Equipment Co., Ltd., Hebei Runong Festival Water Technology Co., Ltd., Jilin Xifeng Water-saving Technology Co., Ltd., Jinglan Muhe Water-saving Equipment Co., Ltd., Gansu Yasheng Amet Water Saving Co., Ltd., Daxie Water Saving (Tianjin) Co., Ltd., Xinjiang Tianye Water Saving Irrigation Co., Ltd., Dahua Water Saving Technology Co., Ltd. Division, Light Industry Plastics Processing Application Research Institute (National Plastics Product Quality Supervision and Inspection Center), China Plastics Processing Industry Association Plastic Water Saving Device Materials Professional Committee, Ningxia Qinglong Plastic Pipe Co., Ltd. The main drafters of this section. Tian Xiaohong, Dang Xiaogang, Wang Qingli, Bi Shuming, Zhang Yanqin, Duan Xiaodong, Feng Houjun, Chen Lin, Wei Xin, Xu Haiyun, Li Ying, Chang Jun, Zhang Hongmei, Ru Fenghu. Plastic water saving irrigation equipment Part 5. Buried drip irrigation pipe

1 Scope

This part of GB/T 19812 specifies the terms and definitions, markings, materials, requirements, and tests for buried drip irrigation pipes (hereinafter referred to as drip irrigation pipes). Sample and test conditions, test methods, inspection rules, marking, packaging, transportation and storage. This section applies to buried drip irrigation pipes that use polyolefin as the main raw material to transport irrigation water.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2828.1-2012.Sampling procedures for counting sampling - Part 1. Quantitative inspection by batches Plan (ISO 2859-1.1999, IDT) GB/T 2918-2018 Standard environment for conditioning and testing of plastic specimens (ISO 291.2008, MOD) Thermoplastics -- Determination of tensile properties of thermoplastic pipes - Part 3. Polyolefin pipes (ISO 6259-3. 1997, IDT) GB/T 8806-2008 Determination of dimensions of plastic parts for plastics piping systems (ISO 3126.2005, IDT) GB/T 15819-2006 Test method for environmental stress cracking sensitivity caused by plugged pipe fittings for polyethylene (PE) pipes for irrigation Legal and technical requirements (ISO 8796.2004, MOD) GB/T 17187-2009 Technical specifications and test methods for drip and drip irrigation pipes for agricultural irrigation equipment (ISO 9261.2004, IDT) GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves GB/T 19466.6-2009 Plastic Differential Scanning Calorimetry (DSC) Part 6. Oxidation induction time (isothermal OIT) and oxygen Determination of the induced temperature (dynamic OIT) (ISO 11357-6.2008, MOD) GB/T 19812.3-2017 Plastic water-saving irrigation equipment - Part 3. Inlaid drip irrigation and drip irrigation SL571-2013 Water-saving irrigation equipment hydraulic basic parameters test method

3 Terms and definitions

GB/T 17187-2009, GB/T 19278-2018, GB/T 19812.3-2017 and the following terms and definitions apply In this document. 3.1 Submerged drip irrigation pipe sub-surfacedripirrigationpipe Drip irrigation pipe with anti-negative pressure blocking function under a certain soil depth. 3.2 Negative pressure blockage negativepressureplugging/negativepressureblockage During the use of the drip irrigation tube, the soil particles around the drip hole are sucked into the drip channel in the drip element due to the negative pressure, causing the drip irrigation tube to drip. The dripping function of the water component does not satisfy the required phenomenon. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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