GB/T 2904-2010 English PDF

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GB/T 2904-2010: Nickel-Chromium/Gold-Iron, Copper/Gold-Iron low temperature thermocouple wires
Status: Valid

GB/T 2904: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2904-2010	259	Add to Cart	3 days	Nickel-Chromium/Gold-Iron, Copper/Gold-Iron low temperature thermocouple wires	Valid
GB/T 2904-1982	839	Add to Cart	6 days	Nickel-Chromium/Gold-Iron, Copper/Gold-Iron low temperature thermocouple wires and their reference tables	Obsolete

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Basic data

Standard ID: GB/T 2904-2010 (GB/T2904-2010)
Description (Translated English): Nickel-Chromium/Gold-Iron, Copper/Gold-Iron low temperature thermocouple wires
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N11
Classification of International Standard: 17.200.20
Word Count Estimation: 11,132
Date of Issue: 2010-12-01
Date of Implementation: 2011-05-01
Older Standard (superseded by this standard): GB/T 2904-1982
Quoted Standard: GB/T 16701
Regulation (derived from): Announcement of Newly Approved National Standards 2010 No. 9 (No. 164 overall)
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 nickel-chromium Gold and Iron, Copper Gold and Iron thermocouple wire product classification, technical requirements, test methods, inspection rules, modes of supply, packaging and marking. This standard applies to the manufacturing industry Nickel grid Gold and Iron, Steel Gold and Iron thermocouple alloy wire (hereinafter referred to as dual wire).

GB/T 2904-2010: Nickel-Chromium/Gold-Iron, Copper/Gold-Iron low temperature 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.
Nickel-Chromium/Gold-Iron, Copper/Gold-Iron low temperature thermocouple wires ICS 17.200.20 N11 National Standards of People's Republic of China Replacing GB/T 2904-1982 Nickel-chromium - Gold and Iron, Copper - Gold and Iron low temperature thermocouple wire Nickel-Chromium/Gold-Iron, Copper/Gold-Ironlowtemperature Issued on. 2010-12-01 2011-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 2904-1982 "nickel-chromium - Gold and Iron, Copper - Gold and Iron low temperature thermocouple wire and indexing table." The main difference between this standard and GB/T 2904-1982 compared as follows. --- The standard according to GB/T 1.1-2000 and GB/T 20000.3-2003 standard requirements of the original were edited text on modify; --- The standard Ni-Cr - Gold and Iron thermocouple indexing table using ASTM1751-2000 nickel chrome - Gold and Iron thermocouple indexing table; --- Ni-Cr - Gold and Iron thermocouple temperature range adjusted by the -270 ℃ ~ 0 ℃ to -273 ℃ ~ 7 ℃. Appendix A of this standard is an informative annex. 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. Chongqing Instrument Materials Research Institute. Participated in the drafting of this standard. Shaoxing Chunhui Automation Instrumentation Co., Ltd. Anhui Rand Group. The main drafters of this standard. Chen Lixin, Liu Qingbin, Zou Hua Lun Ho Ying Yin Shing House. This standard replaces the previous version of the standard release of case. --- GB/T 2904-1982. Nickel-chromium - Gold and Iron, Copper - Gold and Iron low temperature thermocouple wire

1 Scope

This standard specifies the nickel-chromium - Gold and Iron, Copper - Gold and Iron thermocouple wire product classification, technical requirements, test methods, inspection rules, modes of supply, Packaging and logo. This standard applies to the manufacture of industrial nickel-chromium - Gold and Iron, Copper - Gold and Iron alloy thermocouple wire (hereinafter referred to as dual wire).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 16701 precious metal, metal thermocouple wire thermal EMF measurement

3 Product Categories

3.1 Product name, code and nominal chemical composition Product name, code and the name of the chemical composition as shown in Table 1. Table 1 Categories and nominal chemical composition Product Name polarity code Nominal chemical composition (mass fraction) /% nominal chemical composition (atomic fraction) /% Ni Cr Cu Au Fe Nichrome wire cathode NiCr 90 10 - - - Copper cathode Cu - - 100 - - Gold-iron alloy wire negative AuFe - - - 99.93 0.07 3.2 grade thermocouple wire Thermocouple wire according to requirements and thermoelectric properties were divided into grade Ⅰ, Ⅱ grade, grading technical conditions see the technical requirements. 3.3 Recommended temperature range Thermocouple constituted by a dual wire, and its sub-degree numbers and recommended temperature range as shown in Table 2. Table 2 dual wire recommended temperature range Name thermocouple sub-degree temperature range/℃ Nickel-chromium - Gold and Iron NiCr-AuFe -273 ~ 7 Copper - Gold and Iron Cu-AuFe -270 ~ -196 3.4 tag example Products labeled in the following format. Gold and Iron thermocouple wires GB/T 2904-AuFe-Ⅰ-0.2 Tag of each element have the following meanings. AuFe --- Product Code (NiCr, Cu, AuFe); Ⅰ --- tolerance level; 0.2 --- Product Specifications. 3.5 Product-related physical parameters in Appendix A. ......

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