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GB/T 5563-2013: Rubber and plastics hoses and hose assemblies -- Hydrostatic testing Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 5563: Historical versions
GB/T 5563-2013: Rubber and plastics hoses and hose assemblies -- Hydrostatic testing---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/GBT5563-2013GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 23.040.70 G 42 GB/T 5563-2013 / ISO 1402:2009 Replacing GB/T 5563-2006 Rubber and plastics hoses and hose assemblies - Hydrostatic testing (ISO 1402:2009, IDT) ISSUED ON: DECEMBER 31, 2013 IMPLEMENTED ON: SEPTEMBER 01, 2014 Issued by: 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 5563-2013 Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 5 4 General requirements ... 5 5 Apparatus ... 5 6 Test pieces ... 6 7 Application of hydrostatic pressure ... 6 8 Hydrostatic pressure tests ... 7 9 Test report ... 13 GB/T 5563-2013ForewordThis Standard is drafted according to the rules given in the GB/T 1.1-2009. This Standard replaced GB/T 5563-2006 “Rubber and plastics hoses and hose assemblies - Hydrostatic testing”. Compared with GB/T 5563-2006, the main changes of this Standard are as follows: - ADD the terms and determination (refer to Chapter 3); - REVISE the Chapter 4 (refer to Chapter 5; the Chapter 4 of 2006-edition); - ADD “When a particular hose type or size needs longer measurement, it shall be specified in the hose product standard.” (refer to 6.2); - ADD “Note 1: use the term ‘maximum working pressure’ instead of the deprecated term ‘design working pressure’. ” (refer to 8.1); - REVISE the general procedure (refer to 8.2.1, 7.2.1 in 2006-edition); - ADD “Apply 0.07MPa of pressure for approximately 5 min after completion of the proof pressure test. The supporting surface upon which the hose/hose assembly rests shall be flat and smooth enough to allow the hose/hose assembly to expand or contract without restriction. Alternatively, the hose/hose assembly may be supported on rollers, or suspended vertically. When a section of hose is used as a test piece, it may also be placed in a test rig in a vertical position.” (refer to 8.2.1.1); - ADD “For hose assemblies, measure the distance between the contact faces of the end fittings, or select the reference marks on the hose surface near the end of the inserted part of the fitting.” (refer to 8.2.1.2); - ADD “The change percentage in length will be positive (+) when increase length and negative (−) when decrease length.” (refer to 8.2.2); - DELETE “When the fittings are pull-out, any failures caused by leakage or burst that is 25mm apart from the fittings or within the distance that equal to the hose outer-diameter (maximum) shall not be considered as the real hose bursting.” (refer to 8.3, 7.3 in 2006-edition); - ADD Figure 3, the hydrostatic test procedure specified in this Standard (refer to Figure 3). This Standard uses translation method and equally adopts ISO 1402:2009 “Rubber and plastics hoses and hose assemblies - Hydrostatic testing”. The national documents that have the consistency and correspondence with GB/T 5563-2013 international documents which are normative references in this Standard are as follows: - GB/T 2941-2006 Rubber - General procedures for preparing and conditioning test pieces for physical test methods (ISO 23529:2004, IDT); - GB/T 7528-2011 Rubber and plastics hoses and hose assemblies - Vocabulary (ISO 8330:2007, IDT); - GB/T 9574-2001 Rubber and plastics hoses and hose assemblies - Ratios of proof and burst pressure to design working pressure (ISO 7751:1991, IDT); - GB/T 9573-2003 Rubber and plastics hoses and hose assemblies - Methods of measurement of dimension (ISO 4671:2007, IDT). This Standard was proposed by China Petroleum and Chemical Industry Federation. This Standard shall be under the jurisdiction of National Technical Committee on Rubber and Products of Standardization Administration of China. Drafting organizations of this Standard: Luohe Letong Rubber Co., Ltd., Guangzhou Mingjun Balflex Rubber Co., Ltd., and Shenyang Rubber Research & Design Institute. The main drafters of this Standard: Zhong Weijiang, Zhang Jingxiang, Wang Shuli, Zhao Hongliang, and Zhang Tong. The historical versions replaced by this Standard are as follows: - GB/T 5563-1985, GB/T 5563-1994, GB/T 5563-2006. GB/T 5563-2013 Rubber and plastics hoses and hose assemblies - Hydrostatic testing1 ScopeThis Standard specifies methods for the hydrostatic testing of rubber and plastics hoses and hose assemblies, including methods for the determination of dimensional stability.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. ISO 4671 Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the length of hose assemblies ISO 7751 Rubber and plastic hoses and hose assemblies - Ratios of proof and burst pressure to design working pressure ISO 8330 Rubber and plastics hoses and hose assemblies - Vocabulary ISO 23529 Rubber - General procedures for preparing and conditioning test pieces for physical test methods3 Terms and definitionsThe terms and definitions given in ISO 8330 apply to this document.4 General requirementsUnless otherwise specified, all tests shall be carried out at standard temperature (refer to ISO 23529).5 Apparatus5.1 Pressure pump GB/T 5563-2013 t1 - keeping time of specified pressure; t2 - measuring time of initial dimensions (length and diameter) under reference pressure of 0.07 MPa; t3 - waiting time specified under different pressures; a - burst. This complete test sequence (proof pressure - testing pressure - bursting pressure) only applies to “type tests”. For routine tests, the “measuring sequence” after the proof pressure is applicable only when the relevant hose product standard specifies. Measure the initial length and diameter/circumference and place reference marks for twisting measurement between points A and B. Measure the increase in the length, diameter/circumference, twisting and warping directly before point C. Figure 3 Hydrostatic test procedure specified in this Standard 8.4 Leakage test 8.4.1 Test piece The test pieces for the leakage test shall comprise unaged hose assemblies on which the end fittings have been attached for not more than 30 days and not less than 1 day. 8.4.2 Procedure Hydrostatic pressure specified in test assemblies shall be the 70% of minimum burst pressure. Maintain this specified test pressure for 5 min ± 0.5 min and then reduce it to zero. Re-apply the specified test pressure and maintain it for a further period of 5 min ± 0.5 min. This is considered as the destructive test and the test assemblies shall be destroyed after test. 8.4.3 Criteria for failure There shall be no evidence of leakage or failure. Leakage at the end fitting, fitting blow-off or rupture of the hose adjacent to the fitting shall be considered as failures in the performance of the assembly. Note: Such failures do not necessarily demonstrate an inability of the hose to meet the specified requirements with an alternative fitting.9 Test reportThe test report shall contain the following content: a) state description of the hose and hose assembly samples; ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
