CJ/T 225-2011 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
CJ/T 225-2011: Metal reinforced polyethylene (PE) spirally corrugated pipe for underground sewer Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid CJ/T 225: Historical versions
Similar standardsCJ/T 225-2011: Metal reinforced polyethylene (PE) spirally corrugated pipe for underground sewer---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/CJT225-2011 CJ Industry Standard of the People’s Republic of China Replace CJ/T 225-2006 Metal reinforced polyethylene (PE) spiral corrugated pipe for underground sewer Issued on: APRIL 18, 2011 Implemented on: OCTOBER 1, 2011 Issued by. Ministry of Housing and Urban-Rural Development of the People's Republic of China Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions, symbols, and abbreviations ... 6 4 Raw material ... 8 5 Classification and marking ... 9 6 Pipe structure and connection methods ... 10 7 Requirements ... 11 8 Test method ... 14 9 Inspection rules ... 17 10 Marking, transportation, and storage ... 19 Annex A ... 20 Annex B ... 22 Annex C ... 23 Annex D ... 29 Annex E ... 30 Annex F ... 31 Annex G ... 34 Annex H ... 36ForewordThis Standard is prepared according to the rules specified in GB/T 1.1-2009. This Standard is an revision to CJ/T 225-2006 “Metal Reinforced Polyethylene (PE) Spiral Corrugated Pipe for Underground Sewer”. Compared with CJ/T 225-2006, the changes of main technical content are as follows. — INCREASE technical indictors’ requirements of raw materials, and ADD galvanized steel-strip. — PROPOSE the requirements of dividing sections according to the pipe diameter, and IMPROVE indicators for the tensile strength of the laminated wall and welding seam. — ADD planar-shaped port pipe that is vertical to axis in pipe structure. — PERFORM larger revision on connection type and method. ADD planar-shaped port form in connection type (listed in Annex C). — ADD ring-stiffness SN10 level. — ADD pipe dimensions of 2200, 2400, and 2600 specifications. — ADD Annex B Test Method of Adhesive Resin Water Immersion Resistance Performance, Annex C Common Pipe Connection Type, Annex D Preparation of Ring-stiffness Sample, and Annex E Preparation Method of Pipe Laminated Wall Tensile Strength Test Sample. This Standard was proposed by Standard Rating Institute of Ministry of Housing and Urban-rural Development. This Standard shall be under jurisdiction of Water Supply and Drainage Products Standardization Technical Committee of the Ministry of Housing and Urban-rural Development. Responsible drafting organization of this Standard. Sichuan Senpu Pipe Co., Ltd. Participating drafting organizations of this Standard. Tianjin Shengxiang Plastic Pipe Industry Co., Ltd., Guizhou Senrui Pipe Industry Co., Ltd., Shanghai Banzan Macromolecule Material Co., Ltd., Cangzhou Mingzhu Plastic Co., Ltd., Guangdong Liansu Technology Industrial Co., Ltd., Guangzhou Fengye Pipe Industrial Co., Ltd., Sichuan Goldstone Orient New Material Equipment Inc., Sichuan Huangsheng Pipe Industry Co., Ltd., Xiamen Honghao Pipe Industry Co., Ltd., Ezhou Xingxin Building Materials Co., Ltd., Hangzhou Boda Plastic Technology Co., Ltd., CNLON Co., Ltd., Changsha Qianyan Plastic Technology Development Co., Ltd., Shandong Chenshi Group Co., Ltd., and Huangsheng Pipe Group Co., Ltd. Main drafters of this Standard. Jiang Zepei, Li Zhi, Li Wenquan, Li Xiaomin, Bi Honghai, Jia Xiaohui, Li Xintuan, He Jianxing, Chen Shaojiang, Wu Zhiguo, Zheng Haoyun, Jiang Jinhua, Chen Huasheng, Ye Zhengmao, Fan Gang, Chu Jiangshun, Chen Xiantao, Wu Jinghua, and Shao Taiqing. Previous version of the standard replaced by this Standard are as follows. — CJ/T 225-2006. Metal reinforced polyethylene (PE) spiral corrugated pipe for underground sewer1 ScopeThis Standard specifies the terms and definitions, symbols, abbreviations, raw materials, grading and marking, pipe structure and connection methods, requirements, test methods, inspection rules, marking, transportation and storage of the metal reinforced polyethylene (PE) spiral corrugated pipe. This Standard applies to the rainwater, sewage and other underground drainage pipeline with transmission medium temperature not greater than 45°C.2 Normative referencesThe following documents are essential for the application of this Standard. For dated references, only dated edition applies to this Standard. For undated references, the latest edition (including all amendments) applies. GB/T 228 Metallic materials - Tensile testing at ambient temperature GB/T 1033.1 Plastics - Methods for determining the density of non-cellular plastics - Part 1. Immersion method liquid pyknometer method and titration method GB/T 1633 Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST) GB/T 1842 Plastics - Test method for environmental stress-cracking of polyethylene GB/T 2828.1-2003 Sampling procedures for inspection by attributes - Part 1. Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 2918 Plastics - Standard atmospheres for conditioning and testing GB/T 3682 Determination of the melt mass-flow rate (MFR) and the melt volume- flow rate (MVR) of thermoplastics GB/T 5470 Plastics - Determination of the brittleness temperature by impact GB/T 6111 Thermoplastics pipes for the conveyance of fluids - Resistance to internal pressure - Test method GB/T 8840.3 Thermoplastic pipes - Determination of tensile properties - Part 3. Polyolefin pipes GB/T 9341 Plastics - Determination of flexural properties GB/T 9345.1 Plastics - Determination of ash - Part 1. General methods GB/T 9647 Thermoplastics pipes - Determination of ring-stiffness GB/T 14152-2001 Thermoplastics pipes - Determination of resistance to external blows - Round-the-clock method GB/T 17391 Test method for thermal stability of polyethylene pipes and fittings GB/T 13021 Determination for the carbon-black content of polyethylene pipes and fittings by calcination and pyrolysis GB/T 18042 Thermoplastics pipes - Determination of creep ratio GB/T 19472.2 Polyethylene structure-wall piping system for underground usage - Part 2. Polyethylene spirally enwound structure-wall pipes GB/T 19789 Packaging materials – Test method for oxygen gas permeability characteristics of plastic film and sheeting - Coulometric sensor3 Terms and definitions, symbols, and abbreviationsThe following terms and definitions, symbols, and abbreviations are applicable to this document. 3.1 Terms and definitions 3.1.1 Metal reinforced polyethylene (PE) corrugated pipe, MRP The metal reinforced spiral corrugated pipe that takes polyethylene (PE) resin as matrix; uses the steel-strip of which the surface is coated with adhesive resin and is shaped into waveform as the main support structure; and combines with the inner and outer layers of polyethylene into overall inner wall straightness type. 3.1.2 Anticorrosion layer thickness The sum of the thickness of the outer layer polyethylene of pipe’s steel-strip and the thickness of the adhesive resin. 3.1.3 Spigot length The effective length of the outer circumferential surface of socket-and-spigot-type8 Test method8.1 Pretreatment of samples Unless otherwise specified, the pretreatment of the sample shall comply with the provisions of GB/T 2918. ADJUST the state and test the samples under the temperature of 23°C ± 2°C; the time for state adjustment shall not be less than 48 h. 8.2 Appearance and color Visual inspection, inner wall can be irradiated by light source. 8.3 Dimensions 8.3.1 Length Pipe length shall be measured by a flexible ruler with the minimum scale of being not less than 1mm, accurate to 1mm; measure once for each 90° rotation. The pipe length value shall be the arithmetic mean of the maximum and minimum values measured along the longitudinal direction of pipe. 8.3.2 Mean inner diameter Pipe inner diameter shall be measured by gauges with the minimum scale of being not less than 1mm; measure once for each 90° rotation on the same section of pipes. TAKE the arithmetic mean value of 4-times measurement value; the results shall retain one decimal. 8... ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
