|
|
||||||||||||||||||||||||||||||||||||
JJF 1516-2015 English PDFUS$529.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. JJF 1516-2015: Calibration Specification for Electrical Conductivity Standards of Nonferrous Metals Status: Valid
Basic data
JJF 1516-2015: Calibration Specification for Electrical Conductivity Standards of Nonferrous Metals---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. Calibration Specification for Electrical Conductivity Standards of Nonferrous Metals People's Republic of China National Metrology Technical Specifications Non-ferromagnetic metal-like conductivity (marked) block Calibration Specification Issued on. 2015-02-09 2015-05-09 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Non-ferromagnetic metal conductivity Sample (standard) specification calibration block Focal point. the National Technical Committee on Electromagnetic measurement The main drafting units. China Institute of Metrology Participated in the drafting. the Great Wall of Beijing Institute of Measurement and Testing Technology Beijing Oriental Institute of Metrology This specification commissioned the National Technical Committee Electromagnetic responsible for the interpretation of measurement The main drafters of this specification. Associated British Zheng (China Institute of Metrology) Liu Yue (China Institute of Metrology) Zhao Honggang (China Institute of Metrology) Drafters participate. Ouyang Pu Zhong (Beijing Great Wall Institute of Measurement and Testing Technology) Pan Pan (Beijing Oriental Institute of Metrology) table of ContentsIntroduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 International Annealed Copper Standard (IACS) (1) 4 Overview (2) 5 Metrological characteristics (2) 6 calibration conditions (3) Environmental conditions 6.1 (3) 6.2 standards and other measuring equipment (3) 7 calibration items and calibration methods (3) 7.1 Calibration before the test (3) 7.2 Calibration Principle (3) 7.3 Calibration method (4) 8 calibration results expression (6) 9 Recalibration interval (7) Appendix A Measurement Uncertainty Example (8) Appendix B non-ferromagnetic metal-like conductivity reference blocks DC setting system (12) Appendix C calibration original record format (14) Appendix D calibration certificate within the page format (16)IntroductionThis specification based JJF 1071-2010 "National Calibration Specifications writing rules", JJF 1059.1-2012 "Evaluation and Expression of Uncertainty in Measurement" establishment. This specification with reference to the relevant provisions of the following international standards. ASTMB193 conductive material resistivity measurement method (StandardTestMethodforResistivityof ElectricalConductorMaterials) ASTME1004-09 eddy conductivity material determination [StandardTestMethodforDetermining ElectricalConductivityUsingtheElectromagnetic (Eddy-Current) Method] Aluminum EN2004-7 Aerospace series of test methods and aluminum alloy products - Part 7. aluminum and aluminum alloy electric Conductivity Measurement equipment calibration standard specimens (Aerospaceseriestestmethodforaluminumandalumi- numaloyproductsPart 7. Referenceblocksforthecalibrationofmeasuringequipment usedinthedeterminationofelectricalconductivityofwroughtaluminumandaluminum aloys) This specification is the first release. Non-ferromagnetic metal-like conductivity (marked) block Calibration Specification1 ScopeThis standard applies to the calibration of non-ferromagnetic metal (alloy) Conductivity sample (standard) block (hereinafter referred to as specimens), calibration The conductivity in the range of 0.5% IACS ~ 101% IACS or 0.3MS/m ~ 58.6MS/m. 2. References This specification refers to the following documents. ASTM E 1004-09 Determination of material eddy conductivity [Standard Test Methodfor DeterminingElectricalConductivityUsingtheElectromagnetic (Eddy-Current) Method] ASTMB193-02 (Reapproved2008) conductive material resistivity measurement method (StandardTest MethodforResistivityofElectricalConductorMaterials) Aluminum EN2004-7 Aerospace series of test methods and aluminum alloy products - Part 7. aluminum and aluminum alloy electric Conductivity Measurement equipment calibration standard specimens (Aerospaceseriestestmethodforaluminumandalumi- numaloyproductsPart 7. Referenceblocksforthecalibrationofmeasuringequipment usedinthedeterminationofelectricalconductivityofwroughtaluminumandaluminum aloys) For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.3 terminology and units of measurement3.1 International Annealed Copper Standard (IACS) When the temperature is 20 ℃, when a uniform cross-section S of 1mm2, 1m length of copper wire has a resistance R (1/58) when Ω, defined as 100% IACS, is calculated as equation (1). σ = ·1 (1) Where. --- conductivity [sigma], S/m; ρ --- resistivity, Ω · m; S --- copper cross-section, mm2; R --- Resistance, Ω. Therefore, by definition 100% IACS = 1m 1mm2 · 1 (1/58) Ω = 58m / (Ω · mm2) = 58MS/m The 1MS/m = 58% IACS≈1.72413% IACS ...... |