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JJF 2024-2023 English PDF

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JJF 2024-2023: Calibration Specification for Energy Dispersive X-Ray Fluorescence Spectrometers
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Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJF 2024-2023	English	379	Add to Cart	4 days [Need to translate]	Calibration Specification for Energy Dispersive X-Ray Fluorescence Spectrometers	Valid	JJF 2024-2023

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Basic data

Standard ID	JJF 2024-2023 (JJF2024-2023)
Description (Translated English)	Calibration Specification for Energy Dispersive X-Ray Fluorescence Spectrometers
Sector / Industry	Metrology & Measurement Industry Standard
Word Count Estimation	17,120
Date of Issue	2023-03-15
Date of Implementation	2023-09-15
Issuing agency(ies)	State Administration for Market Regulation

JJF 2024-2023: Calibration Specification for Energy Dispersive X-Ray Fluorescence Spectrometers

---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.
National Metrology Technical Specifications of the People's Republic of China JJF 2024-2023 Calibration specification for energy dispersive X-ray fluorescence spectrometer Released on 2023-03-15 2023-09-15 Implementation Released by the State Administration for Market Regulation Energy Dispersive X-ray Fluorescence Spectrometer Calibration Specifications Energy DispersiveX-Ray Responsible unit: National Technical Committee of Environmental Chemometrics Main drafting unit: Shanghai Institute of Metrology and Testing Technology Nayou Technology (Beijing) Co:, Ltd: Participating in the drafting unit: Hongfujin Precision Industry (Shenzhen) Co:, Ltd: This specification entrusts the National Technical Committee of Environmental Chemometrics to be responsible for interpretation The main drafters of this specification: Huang Wei (Shanghai Institute of Metrology and Testing Technology) Gong Feiyan (Shanghai Institute of Metrology and Testing Technology) Wang Jiliang (Shanghai Institute of Metrology and Testing Technology) Yang Lifeng [NAU Technology (Beijing) Co:, Ltd:] Participating drafters: Cao Fujian [Hongfujin Precision Industry (Shenzhen) Co:, Ltd:] Shandong and Anhui[Nayou Technology (Beijing) Co:, Ltd:] Ding Zhaofeng [Hongfujin Precision Industry (Shenzhen) Co:, Ltd:]

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 terms(1) 4 Overview(1) 5 Metrological characteristics(1) 6 Calibration conditions(1) 7 Calibration Items and Calibration Methods(2) 8 Expression of Calibration Results(3) 9 Recalibration interval(4) Appendix A Energy Dispersive X-ray Fluorescence Spectrometer Calibration Record (5) Appendix B Calibration Certificate (Inner Page) Reference Format (8) Appendix C Example of Evaluation of Measurement Uncertainty of Indication Error of Energy Dispersive X-ray Fluorescence Spectrometer (9)

Introduction

JJF 1071-2010 "Rules for Compilation of National Metrology Calibration Standards", JJF 1001-2011 "General Metrology Terminology and Definition", JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" jointly constitute the support for the formulation of this specification The basic series of documents: This specification refers to GB/T 31364-2015 "Energy Dispersive X-ray Fluorescence Spectrometer Essential Performance Test Methods" and OIMLR123:1997 "Portable and mobile devices for on-site detection of hazardous pollutant elements This specification is published for the first time: Calibration specification for energy dispersive X-ray fluorescence spectrometer

1 Scope

This specification applies to the calibration of energy dispersive X-ray fluorescence spectrometers for elemental analysis in polymers and metals: Instruments in other fields can refer to this specification:

2 References

This specification does not reference documents:

3 terms

3:1 energy resolution energyresolution The ability of a spectrometer to distinguish between similar energies is represented by the full width at half maximum (FWHM) of the characteristic energy peak of a particular element:

4 Overview

The energy dispersive X-ray fluorescence spectrometer (hereinafter referred to as the spectrometer) is to excite the sample to be tested with an excitation source, and emit Using a detector with a certain energy resolution to simultaneously detect various energy characteristics emitted by the sample: Take X-rays: The detector output signal amplitude is proportional to the received X-ray energy: to the detector output signal The energy size is analyzed by energy spectrum, so that the sample can be quantitatively and qualitatively analyzed: The spectrometer is mainly composed of four parts: excitation source, sample analysis chamber, detector and signal analysis system:

5 Metrological characteristics

The metrological characteristics of the spectrometer are shown in Table 1: Table 1 Technical requirements for metering characteristics Project technical requirements Energy resolution/eV ≤280 Indication error/% ±30 Repeatability/% ≤8 Detection limit/(mg/kg) Polymer matrix: Cd: ≤5; other elements: ≤50 Other substrates: ≤100 Stability/% ≤10 Note: The above measurement characteristic requirements are for reference only, not as a basis for judgment:

6 Calibration conditions

6:1 Environmental conditions 6:1:1 There must be no strong mechanical vibration and electromagnetic interference in the instrument room, and no flammable and flammable substances irrelevant to the experiment shall be stored:

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