JJF 1929-2021 English PDF

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JJF 1929-2021: Calibration Specification for Rotating Disc Electrode Atomic Emission Spectrometers
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Basic data

Standard ID: JJF 1929-2021 (JJF1929-2021)
Description (Translated English): Calibration Specification for Rotating Disc Electrode Atomic Emission Spectrometers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A61
Word Count Estimation: 21,222
Issuing agency(ies): State Administration for Market Regulation

JJF 1929-2021: Calibration Specification for Rotating Disc Electrode Atomic Emission 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.
(Rotating disc, glowing, glowing, glowing) National Metrology Technical Specification of the People's Republic of China Specification for Calibration of Rotating Disk Electrode Emission Spectrometers Published on 2021-10-18 2022-04-18 Implementation Released by the State Administration for Market Regulation Rotating Disk Electrode Emission Spectrometer Calibration specification Focal Point. National Technical Committee of Physical Chemistry and Metrology Main drafting unit. Shandong Institute of Nonmetallic Materials Participating in the drafting unit. Air Force Research Institute of the Air Force Research Institute Hunan Institute of Metrology and Testing This specification is entrusted to the National Technical Committee of Physical Chemistry and Metrology to be responsible for the interpretation The main drafters of this specification. Lu Yi (Shandong Institute of Nonmetallic Materials) Wu Lijun (Shandong Institute of Nonmetallic Materials) Liu Hongchao (Shandong Institute of Nonmetallic Materials) Participating drafters. Zhu Chunyang (Air Force Research Institute, Air Force Academy) Peng Lihua (Hunan Institute of Metrology and Inspection)

content

Introduction (Ⅱ) 1 Scope(1) 2 References (1) 3 Terms (1) 3.1 Graphite disk electrode(1) 3.2 Graphite rod electrode(1) 3.3 Analyzing the gap(1) 3.4 Optical tracing(1) 4 Overview(1) 5 Metrology Characteristics(2) 6 Calibration Conditions(2) 6.1 Environmental conditions (2) 6.2 Measurement standards and other equipment(2) 7 Calibration items and calibration methods (2) 7.1 Preparation before calibration(2) 7.2 Indication error(2) 7.3 Repeatability(3) 7.4 Stability(3) 7.5 Detection limit(3) 8 Expression of calibration results (4) 9 Recalibration interval(4) Appendix A Calibration Raw Record Format(5) Appendix B Calibration Certificate Inner Page Format (8) Appendix C Gravimetric Dilution of Certified Reference Materials and Example of Uncertainty Evaluation (9) Appendix D Example of Uncertainty Evaluation of Indication Error Calibration Results (13)

Introduction

This specification is based on JJF 1001-2011 "General Metrology Terms and Definitions", JJF 1059.1-2012 "Measuring Determination Evaluation and Representation", JJF 1071-2010 "Rules for Compilation of National Metrology Calibration Specifications". In the preparation process, reference was made to NB/SH/T 0865-2013 "Wear Metals and Contaminant Elements in Lubricating Oils in Service" Rotating disk electrode atomic emission spectrometry for element determination", ASTMD6595-2017 "In-use lubricating oil or hydraulic oil Determination of Medium Wear Metals and Contaminant Elements by Rotating Disk Electrode Atomic Emission Spectrometry (StandardTest ASTMD6728-2016 "Determination of Contaminant Element Content in Gas Turbine and Diesel Engine Fuel Rotating Disk Electrode The technical indicators, detection methods, etc. This specification is published for the first time. Specification for Calibration of Rotating Disk Electrode Emission Spectrometers

1 Scope

This specification applies to the calibration of rotating disk electrode emission spectrometers using a graphite electrode discharge to excite the sample.

2 Reference documents

This specification references the following documents. NB/SH/T 0865-2013 Determination of Rotating Disk Electrodes for Wear Metals and Contaminant Elements in Lubricating Oils Atomic Emission Spectroscopy For dated references, only the dated version applies to this specification; for undated references The latest version (including all amendments) applies to this specification.

3 Terminology

Terms and definitions defined in NB/SH/T 0865-2013 and the following apply to this specification. Use a soft carbon material to be processed into the shape of a disk as the counter electrode of the arc/spark spectrometer. in oil analysis. 3.2 Graphite rod electrode graphiterodelectrode Use a soft carbon material machined into the shape of a rod as the counter electrode of an arc/spark spectrometer for Oil analysis. 3.3 Analysis gap analysisgap The gap between the graphite disk electrode and the graphite rod electrode after being installed on the corresponding fixture of the rotating disk electrode emission spectrometer. 3.4 Optical tracing profiling Set the actual position of the entrance slit to obtain the best test intensity.

4 Overview

The rotating disk electrode emission spectrometer (hereinafter referred to as the spectrometer) is to bring the sample to the stone through the rotation of the graphite disk electrode. The analysis gap between the ink disk electrode and the graphite rod electrode is used to excite the sample by the high-voltage arc generated between the two electrodes. The atom or ion of the element enters the excited state from the ground state, and the characteristic emitted when the atom or ion returns from the excited state to the ground state is detected. It is an emission spectrometer that realizes the qualitative and quantitative analysis of each element in the sample. It is mainly used for the determination of various types of oils Wear metal and contaminant element content in the product. The instrument is mainly composed of sampling unit, excitation unit, dispersion unit, detection unit, signal processing unit, display unit Its structure is shown in Figure 1. ......

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