JJF 1158-2006 English PDF

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JJF 1158-2006: Calibration Specification for Stable Isotope Gas Mass Spectrometer
Status: Valid

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JJF 1158-2006	449	Add to Cart	3 days	Calibration Specification for Stable Isotope Gas Mass Spectrometer	Valid

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Basic data

Standard ID: JJF 1158-2006 (JJF1158-2006)
Description (Translated English): Calibration Specification for Stable Isotope Gas Mass Spectrometer
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Classification of International Standard: 17
Word Count Estimation: 17,114
Date of Issue: 12/8/2006
Date of Implementation: 2007-03-08
Quoted Standard: JJF 1001-1998; JJF 1059-1999; GB/T 15481-2000
Regulation (derived from): AQSIQ Announcement No. 187 of 2006
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to stable isotope mass spectrometer (hereinafter referred to as MS) calibration, other types of gas mass spectrometer can be calibrated with reference to this specification.

JJF 1158-2006: Calibration Specification for Stable Isotope Gas Mass Spectrometer

---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 Stable Isotope Gas Mass Spectrometer National Metrology Technical Specification of the People's Republic Stable isotope gas mass spectrometer calibration specification Released on.2006-12-08 2007-03-08 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Stable isotope gas mass spectrometer Calibration specification This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on December 8,.2006, and It will take effect on March 8,.2007. Focal Point. National Physical and Chemical Metrology Technical Committee Drafted by. China Institute of Metrology This specification is interpreted by the National Physical and Chemical Metrology Technical Committee. Drafters of this specification. Zhao Motian (China Institute of Metrology) Wang Jun (China Institute of Metrology) Bohai (China Institute of Metrology) Zhou Tao (China Institute of Metrology) Direction (China Institute of Metrology)

table of Contents

1 Scope (1) 2 Citations (1) 3 terms and units of measurement (1) 4 Overview (3) 5 Measurement characteristics (3) 6 Calibration conditions (3) 6.1 Laboratory Environment (3) 6.2 Calibration Equipment (3) 6.3 Isotope Standards (4) 6.4 Inspection and adjustment of the instrument (4) 7 Calibration items and calibration methods (4) 7.1 Resolution Calibration (4) 7.2 Sensitivity calibration (5) 7.3 Abundance sensitivity calibration (5) 7.4 Peak shape coefficient calibration (5) 7.5 Peak Flatness Calibration (6) 7.6 System Stability Calibration (6) 7.7 Internal Repeatability Calibration (7) 7.8 External Repeatability Calibration (8) 8 Calibration result expression (8) 9 re-study interval (8) Appendix A Calibration Record Format (9) Appendix B Stable Isotope Gas Mass Spectrometer Calibration Certificate Format (Cover) (11) Appendix C Stable Isotope Gas Mass Spectrometer Calibration Certificate Format (inside) (12) Stable isotope gas mass spectrometer calibration specification

1 Scope

This specification applies to the calibration of stable isotope gas mass spectrometers (hereinafter referred to as mass spectrometers), other types of gases. The mass spectrometer can be calibrated with reference to this specification.

2 Citations

JJF 1001-1998 General Terms and Definitions JJF 1059-1999 "Measurement and Expression of Measurement Uncertainty" GB/T 15481-2000 "General requirements for testing and calibration laboratory capabilities" Use of this specification should be done with the current valid version of the above cited documents.

3 terms and units of measure

3.1 Isotope abundance isotopebundance The atomic share of the various isotopes possessed by an element in the element. Isotope abundance representation There are. (1) atomic fraction. the number of moles of a certain stable isotope and the total number of moles of the element Ratio; (2) atomic percentage. the atomic fraction expressed in percentage. 3.2 isotope abundance ratio isotopicabundanceratio The ratio of the isotopic abundance of an element to the other isotopic abundance of that element. 3.3 δ value δvalue The specific isotope abundance ratio of two specific isotopic abundances of a certain element of the sample to be compared with their standard sample isotope abundance Poor, except for the ratio of the latter, dimensionless. The delta value is expressed in thousands of fractions, namely. δ=Ru-RsRs ×10 3‰ (1) Where. Ru---the ratio of the abundance of a particular isotope of an element of a sample to the maximum isotope of the element; Rs---the isotope abundance ratio corresponding to the sample to be tested in the standard. 3.4 Mass range massrange The mass range represents the interval from the smallest to the largest mass of the mass spectrometer that can be measured by the mass spectrometer. The unit is the atomic mass list. Bit u. 3.5 resolution resolution Resolution Characterization The ability of a mass spectrometer to identify two adjacent masses of ion beams, defined as the mass range of the mass spectrometer The extent to which a particular mass M position is separated from the two ion beams at the M ΔM position and expressed as M/ΔM The resolution of the mass spectrometer. Dimensionless. 3.6 peak shape factor factorofpeakshape ......

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