GB/T 2903-2015 English PDFUS$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 2903-2015: Copper/Copper-Nickel (Constantan) thermocouple wires Status: Valid GB/T 2903: Historical versions
Basic dataStandard ID: GB/T 2903-2015 (GB/T2903-2015)Description (Translated English): Copper/Copper-Nickel (Constantan) thermocouple wires Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: N11 Classification of International Standard: 17.200.20 Word Count Estimation: 14,156 Date of Issue: 2015-05-15 Date of Implementation: 2015-12-01 Older Standard (superseded by this standard): GB/T 2903-1998 Quoted Standard: GB/T 16701; GB/T 16339.1-1997; JB/T 6819.2 Regulation (derived from): National Standard Announcement 2015 No. 15 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This Standard specifies the copper - copper-nickel (Cu Ni) thermocouple wire product classification, technical requirements, test methods, inspection rules, modes of supply, packaging and marking. This Standard applies to the manufacture of industrial copper - copper-nickel (constantan) thermocouple (T-type thermocouple) alloy wire (hereinafter referred to as the dual wire). GB/T 2903-2015: Copper/Copper-Nickel (Constantan) thermocouple wires---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Copper/Copper-Nickel (Constantan) thermocouple wires ICS 17.200.20 N11 National Standards of People's Republic of China Replacing GB/T 2903-1998 Copper - copper-nickel (constantan) thermocouple wire Issued on. 2015-05-15 2015-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 2903-1998 "copper - copper-nickel (constantan) thermocouple wire." The main difference compared with the standard GB/T 2903-1998 as follows. --- Modify products numerals method; --- Thermocouple thermal emf at 350 ℃ when the tolerance level Ⅰ modified to ± 84μV, tolerance level Ⅱ modified to ± 157μV; --- Adjust the order of A and Appendix B of the Appendix. The standard proposed by China Machinery Industry Federation. The standard instrument functional materials by the National Standardization Technical Committee (SAC/TC419) centralized. This standard is drafted by. Institute of Materials Co., Ltd., Chongqing. Participated in the drafting of this standard. Chongqing Sichuan Instrument Automation Co., Ltd. Metallic Functional Materials Branch, Chongqing Sichuan Instrument Factory Co., seventeen Secretary of Jiangsu Huaxin Alloy Co., Ltd., Anhui Rand Group Co., Ltd., Changzhou Lucheng Albert Alloy Factory, Zhejiang Lunte Electrical and Mechanical Services Limited Secretary, Shandong Liqun Alloy Co., Ltd., Shenyang Institute of pyrometer Sheet Material Co., Ltd. The main drafters of this standard. Ho Ying-lun, Chen Lixin, Li joint text, Wu Lei, Qin Hua Yuan, Yin Shing House, Wangbo Wei, Wu Galen, tension group, Chen, Qibao Jun Tang over. This standard replaces the standards previously issued as follows. --- GB/T 2903-1982, GB/T 2903-1989, GB/T 2903-1998. Copper - copper-nickel (constantan) thermocouple wire1 ScopeThis standard specifies the copper - copper-nickel (Cu Ni) thermocouple wire product classification, technical requirements, test methods, inspection rules, modes of supply, including Installation and flag. This standard applies to the manufacture of industrial copper - copper-nickel (constantan) thermocouple (T-type thermocouple) alloy wire (hereinafter referred to as dual wire).2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 16701 precious metal, metal thermocouple wire thermal EMF measurement GB/T 16839.1-1997 Thermocouples - Part 1. indexing table JB/T 6819.2 meter material term temperature materials3 Terms and DefinitionsTerms and definitions JB/T 6819.2 defined apply to this document.4 Products4.1 Product name, code and nominal chemical composition Product name, code and the name of the chemical composition as shown in Table 1. Table 1 Product name, code and nominal chemical composition Product Name polarity code Nominal chemical composition (mass fraction) /% Ni Cu Copper cathode TP - 100 Copper-nickel alloy wire anode TN 45 55 4.2 grade thermocouple wire Thermocouple wire according to the requirements of tolerance and pyroelectric properties, divided into grade Ⅰ, Ⅱ and Ⅲ grade level classification conditions by the technical requirements. 4.3 dual wire recommended upper temperature limit Thermocouple wire of various diameters recommended upper temperature limit as shown in Table 2. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 2903-2015_English be delivered?Answer: Upon your order, we will start to translate GB/T 2903-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 2903-2015?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2903-2015 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |