GB/T 33281-2016 PDF EnglishUS$165.00 · In stock · Download in 9 seconds
GB/T 33281-2016: Welded wire fabric coated with zine Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 33281-2016: Welded wire fabric coated with zine---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/GBT33281-2016GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.99 Y 72 Welded wire fabric coated with zine ISSUED ON: DECEMBER 13, 2016 IMPLEMENTED ON: JULY 01, 2017 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of PRC; National Standardization Administration. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Marking ... 4 4 Types and dimensions ... 5 5 Requirements ... 6 6 Test method ... 9 7 Inspection rules ... 11 8 Marking, packaging, transportation, storage ... 12ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Light Industry Federation. This standard shall be under the jurisdiction of the National Technical Committee for Standardization of Hardware Products (SAC/TC 174). Drafting organizations of this standard: Shanghai Shenbao Wire Mesh Co., Ltd., Zhejiang Weifa Steel Mesh Manufacturing Co., Ltd., Foshan Quality Metrology Supervision and Inspection Center, China Hardware Products Association, Anping County Yilida Metal Mesh Co., Ltd., Hebei Anping County Huijin Mesh Co., Ltd., Anping County Tianxingjian Wire Mesh Co., Ltd., Hebei Anjia Wire Mesh Manufacturing Co., Ltd., Shanghai Jianke Inspection Co., Ltd., Anping County Zhenxing Steel Plate Mesh Factory, Deming Metal Mesh Co., Ltd., Shanghai Building Hardware Industry Research Institute Co., Ltd. Drafters of this standard: Zhan Dekang, Luo Yulong, Qu Zhuokun, Liu Runfeng, Song Tieling, Xue Xiaochui, Wei Hongyan, Qiao Lifeng, Yue Peng, Meng Shiyin, Zhao Honglang, Quan Hong, Yan Deyong. Welded wire fabric coated with zine1 ScopeThis standard specifies the marking, type and size, requirements, test methods, inspection rules, marking, packaging, transportation and storage of welded wire fabric coated with zine (hereinafter referred to as welded wire fabric). This standard applies to welded wire fabric used in construction, planting, breeding, machine protection covers, fences, poultry cages, egg baskets, transportation, mining and other purposes.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) is applicable to this standard. GB/T 1839-2008 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 2828.1 Sampling procedures for inspection by attributes -- Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability) GB/T 2972 Test method for uniformity of zinc coating on zinc-coated steel wire by the copper sulphate dip YB/T 5294 Low carbon steel wire for general uses3 Marking3.1 Product marking Welded wire fabric coated with zine Wire diameter × Warp mesh length × Weft mesh length color shall be consistent; there shall be no defects of exposed iron. 5.8.2 The number of zinc particles on the welded mesh surface shall not exceed 5% of the number of mesh apertures; the maximum zinc particles shall not exceed 10% of the wire diameter. 5.9 Surface coating 5.9.1 The mass of the zinc coating of the welded mesh shall be greater than 140 g/m2. 5.9.2 The zinc coating shall be uniform; the number of copper sulfate immersion tests shall be no less than two. The immersion time for wires with a diameter greater than 1 mm is 60 s; the immersion time for wires with a diameter less than 1 mm is 30 s. 5.10 Rolling rate The welded mesh is allowed to be assembled from two segments. The length of the shorter segment shall not be less than 5 m; each roll of the welded mesh shall be at least 300 mm longer; the rolling rate shall not exceed 5%.6 Test method6.1 Materials The supplier shall provide a quality guarantee. In case of dispute, the relevant standards shall be used for testing. 6.2 Size, mesh deviation, rolling rate of welded mesh 6.2.1 Length and width of welded mesh: Unfold the mesh on a flat surface and measure with a steel tape measure which has a reading of 1 mm. 6.2.2 Mesh deviation: Unfold the mesh on a flat surface and measure the number of mesh holes within 305 mm (see Table 5) with a steel ruler which has a reading of 1 mm. In case of dispute, a vernier caliper with a reading of 0.02 mm may be used for measurement. 6.2.3 Wire diameter: Use a micrometer with a reading of 0.01 mm to measure 3 warp and weft wires (except for zinc particles) at random; take the average value. 6.2.4 Length of exposed mesh edge: Use a vernier caliper with a reading of 0.02 mm to 6.7 Appearance 6.7.1 Visual inspection is used to inspect the flatness of the welded mesh surface, mesh uniformity, color, and exposed iron defects. 6.7.2 Take any length of 1 m on the mesh surface; measure it with a vernier caliper with a reading of 0.02 mm. Take the difference between the measured value and the wire diameter; conduct zinc particle detection (see 5.8.2). 6.8 Surface coating 6.8.1 The quality of the zinc coating shall be tested in accordance with the relevant provisions of GB/T 1839-2008. 6.8.2 The copper sulfate test of the zinc coating shall be carried out in accordance with the relevant provisions of GB/T 2972.7 Inspection rules7.1 Product inspection is divided into exit-factory inspection and type inspection. 7.2 Products must be accepted by the inspection department of the manufacturer before they can be shipped. The recipient has the right to re-inspect the delivery batch. Exit- factory inspection shall be carried out in accordance with the provisions of GB/T 2828.1, using the special inspection level S-1 and five-time sampling plan. Exit-factory inspection items, unqualified categories, acceptance quality level (AQL) shall be as specified in Table 6. 7.3 Type inspection shall be carried out in accordance with the provisions of GB/T 2829, using the discrimination level III and one-time sampling plan. In one of the following situations, type inspection shall be carried out: ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 33281-2016 be delivered?Answer: The full copy PDF of English version of GB/T 33281-2016 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 33281-2016_English with my colleagues?Answer: Yes. 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