GB/T 26726-2019 PDF EnglishUS$199.00 · In stock · Download in 9 seconds
GB/T 26726-2019: Ultrafine tungsten powder 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 26726: Historical versions
Similar standardsGB/T 26726-2019: Ultrafine tungsten powder---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/GBT26726-2019(Ultrafine tungsten powder) ICS 77.160 H71 National Standards of People's Republic of China Replace GB/T 26726-2011 Ultrafine tungsten powder Ultrafinetungstenpowder Published on.2019-08-30 2020-07-01 implementation State market supervision and administration China National Standardization Administration issued ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 26726-2011 "ultra-fine tungsten powder", compared with GB/T 26726-2011, except for editorial modification The changes are as follows. --- Subdivide the product grade and increase the FWN15, FWN20, FWN40, FWN50, FWN70 five grades of ultra-fine tungsten powder and Related requirements, deleted the FWN60 grade, adjusted the requirements of the FWN30 grade, and added Table 3 (see Chapter 3,.2011) Chapter 3 of the edition); --- The content of W is changed from "balance" to not less than "99.95%" (see Table 1, Table 1 of the.2011 edition); --- Increase the content requirements of Cd, Co, Cr, S, Ti, V (see Table 1, Table 1 of the.2011 edition); --- Refining the carbon content requirements according to the product grade (see Table 1, Table 1 of the.2011 edition); --- Increase "arbitration analysis in accordance with the provisions of GB/T 4324" (see 4.1,.2011 version 4.1); --- The average particle size of the product is calculated according to the specific surface area, increasing the formula (1) (see 4.3,.2011 edition 4.2). This standard was proposed by the China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This standard was drafted. Chongyi Zhangyuan Tungsten Co., Ltd., Nanchang Cemented Carbide Co., Ltd., Zhuzhou Cemented Carbide Group Limited company, Xi'an Baode Jiu Tu New Material Co., Ltd., Northwest Nonferrous Metal Research Institute. The main drafters of this standard. Zhao Lifu, Xie Haigen, Zhang Qiulin, Yang Chenghui, Yang Ligeng, Lei Chunpeng, Yang Jun, Liang Yongren, Zheng Jing. The previous versions of the standards replaced by this standard are. ---GB/T 26726-2011. Ultrafine tungsten powder1 ScopeThis standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificates and contracts for ultra-fine tungsten powder. (or order form) content. This standard applies to ultra-fine tungsten powder prepared by hydrogen reduction of tungsten oxide.2 Normative referencesThe 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 4324 (all parts) Tungsten chemical analysis method GB/T 5314 powder metallurgy powder sampling method Determination of specific surface area of solid materials by GB/T 19587 gas adsorption BET method YS/T 559 tungsten emission spectrum analysis method3 requirements3.1 Brand The ultrafine tungsten powder is classified into six grades of FWN15, FWN20, FWN30, FWN40, FWN50, and FWN70 according to the average particle diameter. 3.2 Chemical composition The chemical composition of ultrafine tungsten powder should meet the requirements of Table 1. Table 1 % Chemical content (mass fraction) The main element, not less than W 99.95 Impurity element, no greater than Al 0.0010 As 0.0015 Bi 0.0001 Ca 0.0010 Cd 0.0005 Co 0.0010 Cr 0.0010 Cu 0.0007 Fe 0.0050 K 0.0010 GB/T 26726-2019 (Ultrafine tungsten powder) ICS 77.160 H71 National Standards of People's Republic of China Replace GB/T 26726-2011 Ultrafine tungsten powder Ultrafinetungstenpowder Published on.2019-08-30 2020-07-01 implementation State market supervision and administration China National Standardization Administration issuedForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 26726-2011 "ultra-fine tungsten powder", compared with GB/T 26726-2011, except for editorial modification The changes are as follows. --- Subdivide the product grade and increase the FWN15, FWN20, FWN40, FWN50, FWN70 five grades of ultra-fine tungsten powder and Related requirements, deleted the FWN60 grade, adjusted the requirements of the FWN30 grade, and added Table 3 (see Chapter 3,.2011) Chapter 3 of the edition); --- The content of W is changed from "balance" to not less than "99.95%" (see Table 1, Table 1 of the.2011 edition); --- Increase the content requirements of Cd, Co, Cr, S, Ti, V (see Table 1, Table 1 of the.2011 edition); --- Refining the carbon content requirements according to the product grade (see Table 1, Table 1 of the.2011 edition); --- Increase "arbitration analysis in accordance with the provisions of GB/T 4324" (see 4.1,.2011 version 4.1); --- The average particle size of the product is calculated according to the specific surface area, increasing the formula (1) (see 4.3,.2011 edition 4.2). This standard was proposed by the China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This standard was drafted. Chongyi Zhangyuan Tungsten Co., Ltd., Nanchang Cemented Carbide Co., Ltd., Zhuzhou Cemented Carbide Group Limited company, Xi'an Baode Jiu Tu New Material Co., Ltd., Northwest Nonferrous Metal Research Institute. The main drafters of this standard. Zhao Lifu, Xie Haigen, Zhang Qiulin, Yang Chenghui, Yang Ligeng, Lei Chunpeng, Yang Jun, Liang Yongren, Zheng Jing. The previous versions of the standards replaced by this standard are. ---GB/T 26726-2011. Ultrafine tungsten powder1 ScopeThis standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificates and contracts for ultra-fine tungsten powder. (or order form) content. This standard applies to ultra-fine tungsten powder prepared by hydrogen reduction of tungsten oxide.2 Normative referencesThe 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 4324 (all parts) Tungsten chemical analysis method GB/T 5314 powder metallurgy powder sampling method Determination of specific surface area of solid materials by GB/T 19587 gas adsorption BET method YS/T 559 tungsten emission spectrum analysis method3 requirements3.1 Brand The ultrafine tungsten powder is classified into six grades of FWN15, FWN20, FWN30, FWN40, FWN50, and FWN70 according to the average particle diameter. 3.2 Chemical composition The chemical composition of ultrafine tungsten powder should meet the requirements of Table 1. Table 1 % Chemical content (mass fraction) The main element, not less than W 99.95 Impurity element, no greater than Al 0.0010 As 0.0015 Bi 0.0001 Ca 0.0010 Cd 0.0005 Co 0.0010 Cr 0.0010 Cu 0.0007 Fe 0.0050 K 0.0010 ......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 26726-2019 be delivered?Answer: The full copy PDF of English version of GB/T 26726-2019 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 26726-2019_English with my colleagues?Answer: Yes. 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