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Similar standardsJJF 1001-2011: General Terms in Metrology and Their Definitions---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/JJF1001-2011JJF METEROLOGICAL TECHNICAL SPECIFICATION General terms in metrology and their definitions Issued on. NOVEMBER 30, 2011 Implemented on. MARCH 01, 2012 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of PRC General terms in metrology and their definitions Under the jurisdiction of. National Technical Committee for Legal Metrology Management Drafting organization. Department of Metrology, General Administration of Quality Supervision, Inspection and Quarantine For this specification, the National Legal Metrology Management Metrology Technical Committee is entrusted to be responsible for the interpretation. Replacing JJF 1001-1998 Main drafters of this specification. Ye Depei Shi Changyan Jin Huazhang Dai Runsheng Xuan Xiang Chen Hong (Department of Metrology, General Administration of Quality Supervision, Inspection and Quarantine) Participated drafters. Han Jianping (International Cooperation Department, General Administration of Quality Supervision, Inspection and Quarantine) Luo Xinyuan (China Metrology Association) Table of ContentsIntroduction... 12 1 Scope... 14 2 Normative references... 14 3 Quantity and unit... 14 4 Measurement... 29 5 Measurement results... 37 6 Measuring instruments... 50 7 Property of measuring instruments... 55 8 Measurement standards... 64 9 Legal metrology and metrological management... 73 Index in English... 841 ScopeThis specification specifies the commonly used terms and their definitions in metrology. This specification applies to all tasks in the field of metrology. The related fields can also refer to it.2 Normative referencesThis specification refers to the following documents. ISO/IEC 98-3 Uncertainty of measurement - Part 3.Guide to the expression of uncertainty in measurement ISO/IEC GUIDE 99.2007 International vocabulary of metrology -Basic and general concepts and associated terms (VIM)) ISO/IEC 80000.2006 Quantity and units For dated reference documents, only the dated version applies to this specification; for undated reference documents, the latest version (including all amendments) applies to this specification.3 Quantity and unit3.1 Quantity [VIM1.1] The property of a phenomenon, object or substance, the size of which can be represented by a number and a reference object. 3.6 Dimension of a quantity [VIM1.7] A compliance relationship between a given quantity and each base quantity in the system of quantities, which is expressed by the product of the power of the factor corresponding to the base quantity after removing all digital factors. 3.13 International System of Units (SI) [VIM1.16] The unit system based on the international system of quantities approved by the International Conference on Metrology (CGPM), including unit names and symbols, prefix names and symbols and their usage rules.4 Measurement4.1 Measurement [VIM2.1] The process of obtaining one or more values of a certain quantity by experiment. Note. 4.5 Measurement method [VIM2.5] A general description of the logical arrangement of operations used in the measurement process. 4.6 Measurement procedure [VIM2.6] According to one or more measurement principles and given measurement methods, a detailed description of the measurement based on the measurement model and the calculations needed to obtain the measurement results. 4.7 Measurand [VIM2.3] The quantity to be measured. 4.8 Influence quantity [VIM2.52] In direct measurement, the quantity which does not affect the actual measured, but will affect the relationship between the displayed value and the measurement result. 4.10 Calibration [VIM2.39] For a set of operations under specified conditions, the first step is to determine the relationship between the quantity value provided by the measurement standard and the corresponding display value; the second step is to use this information to determine the relationship between the measurement result obtained from the display value. Both the quantity value provided by the measurement standard and the corresponding indication have measurement uncertainty.5 Measurement results5.1 Measurement result, result of measurement [VIM2.9] A set of measured quantity values which, together with other useful relevant information, are assigned to the measured. Note. 5.2 Measured quantity value [VIM2.10] Also known as measured value of a quantity, referred to as measured value Quantity which represents the measurement result. 5.3 Measurement error, error of measurement [VIM2.16] 5.4 Systematic measurement error, systematic error of measurement [VIM2.17] 5.16 Measurement reproducibility [VIM2.25] Referred to as reproducibility Measurement precision under reproducible measurement conditions. 5.17 Experimental standard deviation Referred to as experimental standard deviation When performing n measurements on the same measured, the quantity which characterizes the dispersion of measurement results. It is represented by the symbol s.6 Measuring instruments6.1 Measuring instrument [VIM3.1] Measuring instrument 6.2 Measuring system [VIM3.2] A set of one or more measuring instruments that are assembled and suitable for a specific quantity to give measured value information within a specified interval, usually including other devices, such as reagents and power supplies. 6.3 Indicating measuring instrument [VIM3.3] A measuring instrument that provides an output signal with information about the measured quantity value. 6.11 Displayer The part of the measuring instrument that shows the value. 6.12 Recorder The measuring instrument's components for recording of indicated value. 6.13 Index The fixed or movable part of the display unit that can determine the indication value according to the position relative to the scale mark.7 Property of measuring instruments7.1 Indication [VIM4.1] The quantity value given by the measuring instrument or measuring system. Note. 7.2 Blank indication [VIM4.2] Also known as background indication The indication as obtained from the phenomenon, object or substance similar to the quantity being studied, assuming that the quantity concerned does not exist or does not contribute to the indication. 7.5 Nominal indication interval [VIM4.4] Abbreviated as nominal interval When the measuring instrument or measuring system is adjusted to a specific position, a set of values defined by the rounded or approximate limit value obtained and used to indicate the position. 7.8 Steady state operating condition [VIM4.8] In order to keep the relationship established by the calibration valid, the working conditions of the measuring instrument or measuring system, even if the measured changes over time.8 Measurement standards8.1 Measurement standard, etalon [VIM5.1] The reference object which has definite quantity value and associated measurement uncertainty, to realize the definition of a given quantity. Example. 8.9 Transfer measurement device [VIM5.9] Referred to as transfer device 8.10 Check device A device used for daily verification of the performance of a measuring instrument or measuring system. Note. Sometimes it is also called check standard.9 Legal metrology and metrological management9.1 Legal metrology In order to meet statutory requirements, the measurement activities involving measurement, measurement units, measurement instruments, measurement methods and measurement results carried out by qualified institutions, which are part of metrology. 9.5 Service of legal metrology Institutions responsible for implementing laws or regulations in the field of legal metrology. 9.6 Legal control of measuring instrument The general term for the statutory activities prescribed for measuring instruments, such as type approval, verification, etc. 9.8 Metrological expertise All operations for the purpose of proof, such as referring to the corresponding statutory requirements, verifying the state of the measuring instrument for the court and determining its metrological performance, or evaluating the trueness of the test data used for notarization. 9.9 Type (pattern) evaluation According to the requirements of the document, the performance of one or more samples of the specified type of measuring instrument is systematically inspected and tested, the results are written into the type evaluation report, to determine whether the type can be approved. JJF METEROLOGICAL TECHNICAL SPECIFICATION General terms in metrology and their definitions Issued on. NOVEMBER 30, 2011 Implemented on. MARCH 01, 2012 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of PRC General terms in metrology and their definitions Under the jurisdiction of. National Technical Committee for Legal Metrology Management Drafting organization. Department of Metrology, General Administration of Quality Supervision, Inspection and Quarantine For this specification, the National Legal Metrology Management Metrology Technical Committee is entrusted to be responsible for the interpretation. Replacing JJF 1001-1998 Main drafters of this specification. Ye Depei Shi Changyan Jin Huazhang Dai Runsheng Xuan Xiang Chen Hong (Department of Metrology, General Administration of Quality Supervision, Inspection and Quarantine) Participated drafters. Han Jianping (International Cooperation Department, General Administration of Quality Supervision, Inspection and Quarantine) Luo Xinyuan (China Metrology Association)Table of ContentsIntroduction... 12 1 Scope... 14 2 Normative references... 14 3 Quantity and unit... 14 4 Measurement... 29 5 Measurement results... 37 6 Measuring instruments... 50 7 Property of measuring instruments... 55 8 Measurement standards... 64 9 Legal metrology and metrological management... 73 Index in English... 841 ScopeThis specification specifies the commonly used terms and their definitions in metrology. This specification applies to all tasks in the field of metrology. The related fields can also refer to it.2 Normative referencesThis specification refers to the following documents. ISO/IEC 98-3 Uncertainty of measurement - Part 3.Guide to the expression of uncertainty in measurement ISO/IEC GUIDE 99.2007 International vocabulary of metrology -Basic and general concepts and associated terms (VIM)) ISO/IEC 80000.2006 Quantity and units For dated reference documents, only the dated version applies to this specification; for undated reference documents, the latest version (including all amendments) applies to this specification.3 Quantity and unit3.1 Quantity [VIM1.1] The property of a phenomenon, object or substance, the size of which can be represented by a number and a reference object. 3.6 Dimension of a quantity [VIM1.7] A compliance relationship between a given quantity and each base quantity in the system of quantities, which is expressed by the product of the power of the factor corresponding to the base quantity after removing all digital factors. 3.13 International System of Units (SI) [VIM1.16] The unit system based on the international system of quantities approved by the International Conference on Metrology (CGPM), including unit names and symbols, prefix names and symbols and their usage rules.4 Measurement4.1 Measurement [VIM2.1] The process of obtaining one or more values of a certain quantity by experiment. Note. 4.5 Measurement method [VIM2.5] A general description of the logical arrangement of operations used in the measurement process. 4.6 Measurement procedure [VIM2.6] According to one or more measurement principles and given measurement methods, a detailed description of the measurement based on the measurement model and the calculations needed to obtain the measurement results. 4.7 Measurand [VIM2.3] The quantity to be measured. 4.8 Influence quantity [VIM2.52] In direct measurement, the quantity which does not affect the actual measured, but will affect the relationship between the displayed value and the measurement result. 4.10 Calibration [VIM2.39] For a set of operations under specified conditions, the first step is to determine the relationship between the quantity value provided by the measurement standard and the corresponding display value; the second step is to use this information to determine the relationship between the measurement result obtained from the display value. Both the quantity value provided by the measurement standard and the corresponding indication have measurement uncertainty.5 Measurement results5.1 Measurement result, result of measurement [VIM2.9] A set of measured quantity values which, together with other useful relevant information, are assigned to the measured. Note. 5.2 Measured quantity value [VIM2.10] Also known as measured value of a quantity, referred to as measured value Quantity which represents the measurement result. 5.3 Measurement error, error of measurement [VIM2.16] 5.4 Systematic measurement error, systematic error of measurement [VIM2.17] 5.16 Measurement reproducibility [VIM2.25] Referred to as reproducibility Measurement precision under reproducible measurement conditions. 5.17 Experimental standard deviation Referred to as experimental standard deviation When performing n measurements on the same measured, the quantity which characterizes the dispersion of measurement results. It is represented by the symbol s.6 Measuring instruments6.1 Measuring instrument [VIM3.1] Measuring instrument 6.2 Measuring system [VIM3.2] A set of one or more measuring instruments that are assembled and suitable for a specific quantity to give measured value information within a specified interval, usually including other devices, such as reagents and power supplies. 6.3 Indicating measuring instrument [VIM3.3] A measuring instrument that provides an output signal with information about the measured quantity value. 6.11 Displayer The part of the measuring instrument that shows the value. 6.12 Recorder The measuring instrument's components for recording of indicated value. 6.13 Index The fixed or movable part of the display unit that can determine the indication value according to the position relative to the scale mark.7 Property of measuring instruments7.1 Indication [VIM4.1] The quantity value given by the measuring instrument or measuring system. Note. 7.2 Blank indication [VIM4.2] Also known as background indication The indication as obtained from the phenomenon, object or substance similar to the quantity being studied, assuming that the quantity concerned does not exist or does not contribute to the indication. 7.5 Nominal indication interval [VIM4.4] Abbreviated as nominal interval When the measuring instrument or measuring system is adjusted to a specific position, a set of values defined by the rounded or approximate limit value obtained and used to indicate the position. 7.8 Steady state operating condition [VIM4.8] In order to keep the relationship established by the calibration valid, the working conditions of the measuring instrument or measuring system, even if the measured changes over time.8 Measurement standards8.1 Measurement standard, etalon [VIM5.1] The reference object which has definite quantity value and associated measurement uncertainty, to realize the definition of a given quantity. Example. 8.9 Transfer measurement device [VIM5.9] Referred to as transfer device 8.10 Check device A device used for daily verification of the performance of a measuring instrument or measuring system. Note. Sometimes it is also called check standard.9 Legal metrology and metrological management9.1 Legal metrology In order to meet statutory requirements, the measurement activities involving measurement, measurement units, measurement instruments, measurement methods and measurement results carried out by qualified institutions, which are part of metrology. 9.5 Service of legal metrology Institutions responsible for implementing laws or regulations in the field of legal metrology. 9.6 Legal control of measuring instrument The general term for the statutory activities prescribed for measuring instruments, such as type approval, verification, etc. 9.8 Metrological expertise All operations for the purpose of proof, such as referring to the corresponding statutory requirements, verifying the state of the measuring instrument for the court and determining its metrological performance, or evaluating the trueness of the test data used for notarization. 9.9 Type (pattern) evaluation According to the requirements of the document, the performance of one or more samples of the specified type of measuring instrument is systematically inspected and tested, the results are written into the type evaluation report, to determine whether the type can be approved. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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