GB/T 33368-2023 (GB/T 33368-2016) PDF EnglishUS$150.00 · In stock · Download in 9 seconds
GB/T 33368-2016: Aluminum alloy strips for television Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete GB/T 33368: Historical versions
Similar standardsGB/T 33368-2016: Aluminum alloy strips for television---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/GBT33368-2016NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.10 H 61 Aluminum Alloy Strips for Television Issued on: DECEMBER 30, 2016 Implemented on: NOVEMBER 1, 2017 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 4 2 Normative References... 4 3 Requirements... 5 4 Test Methods... 8 5 Inspection Rules... 9 6 Marking, Packaging, Transportation, Storage and Quality Certificate... 11 7 Order Sheet (or contract) Content... 12 Aluminum Alloy Strips for Television1 ScopeThis Standard stipulates the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate and order sheet (or contract) content of aluminum alloy strips for television. This Standard is mainly applicable to aluminum alloy strips (hereinafter referred to as strips) for displayer, circuit board support and heat dissipation of LCD and LED flat panel TV.2 Normative ReferencesThe following documents are indispensable to the application of this document. In terms of references with a specific date, only versions with the specific date are applicable to this document. In terms of references without a specific date, the latest versions (including all the modification orders) are applicable to this document. GB/T 232 Metallic Materials - Bend Test GB/T 3190 Wrought Aluminum and Aluminum Alloy - Chemical Composition GB/T 3199 Wrought Aluminum and Aluminum Alloy Products - Packing, Marking, Transporting and Storing GB/T 3880.3 Wrought Aluminum and Aluminum Alloy Plates, Sheets and Strips for General Engineering - Part 3.Tolerances on Forms and Dimensions GB/T 7999 Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement of Limiting Values GB/T 16865 Test Pieces and Method for Tensile Test for Wrought Aluminum and Magnesium Alloys Products GB/T 17432 Methods for Sampling for Analyzing the Chemical Composition of Wrought Aluminum and Aluminum Alloys GB/T 20975 Methods for Chemical Analysis of Aluminum and Aluminum Alloys4 Test Methods4.1 Chemical Composition 4.1.1 The analytical method of chemical composition shall comply with the stipulations in GB/T 20975 or GB/T 7999.The arbitration analysis method shall adopt the method stipulated in GB/T 20975. 4.1.2 “A1” content shall be calculated in accordance with the method stipulated in GB/T 3190.In the calculation of “A1” content, take the sum of the analytical value of conventional analytical elements and unconventional analytical elements, which are suspected to be excessive, as “the sum of element content”. 4.1.3 The determination of analytical value shall adopt rounding-off comparison method. The rounding-off rules of numerical value shall comply with relevant stipulations in GB/T 8170.The rounding-off numerical digit shall be consistent with the limit digit stipulated in GB/T 3190. 4.2 Dimensional Deviation 4.2.1 Dimensional rounding-off Rounding-off of measured dimensions is not allowed. The determination method of limit value shall comply with the stipulations in GB/T 8170. 4.2.2 Unevenness Randomly take a sample (length. 2,000 mm) from strips (the sample shall try to include the wavy part of the strips). Freely place the sample on a platform. In accordance with the stipulations in GB/T 3880.3, detect wave height and number of waves. 4.2.3 Others Other dimensional deviations shall be measured through measuring instruments of corresponding accuracy, or, receive visual inspection. 4.3 Tensile Mechanical Property at Room Temperature Room-temperature tensile test shall be conducted in accordance with the method stipulated in GB/T 16865. 4.4 Bending Performance Room-temperature bending performance shall be conducted in accordance with the method stipulated in GB/T 232. 4.5 Appearance Quality shall be determined as unqualified.6 Marking, Packaging, Transportation, Storage andQuality Certificate 6.1 Marking 6.1.1 Product marking Each coil of strips which are qualified in the inspection shall have an attached label, which includes the following content. a) Product name; b) Nameplate; c) Status; d) Dimensions; e) Batch No. or coil No. of strips; f) Net weight; g) Inspection stamp of the supply-side’s quality inspection department (or quality inspector’s signature or stamp) 6.1.2 Marking of packing box The marking of strips’ packing box shall comply with the stipulations in GB/T 3199. 6.2 Packaging, Transportation and Storage Packaging, transportation and storage of strips shall comply with the stipulations in GB/T 3199.When the demand-side has special requirements towards the packaging mode of strips, the demand-side and the supply-side shall determine them through negotiation; this content shall be indicated in the order sheet (or contract). 6.3 Quality Certificate Each coil of strips shall have an attached product quality certificate, which indicates. a) The supply-side’s name; b) Product name; c) Nameplate and status; ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
