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JJF 1952-2021 English PDF

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US$329.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1952-2021: Calibration Specification for Sulfur X-ray Fluorescence Spectrometry Analyzers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1952-2021	329	Add to Cart	3 days	Calibration Specification for Sulfur X-ray Fluorescence Spectrometry Analyzers	Valid

Similar standards

JJF 1951 JJF 1561 JJF 1406 JJF 1961 JJF 1962 JJF 1960

Basic data

Standard ID: JJF 1952-2021 (JJF1952-2021)
Description (Translated English): Calibration Specification for Sulfur X-ray Fluorescence Spectrometry Analyzers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Word Count Estimation: 14,156
Issuing agency(ies): State Administration for Market Regulation

JJF 1952-2021: Calibration Specification for Sulfur X-ray Fluorescence Spectrometry Analyzers

---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 Sulfur X-ray Fluorescence Spectrometry Analyzers National Metrology Technical Specification of the People's Republic of China Calibration Specification for X-ray Fluorescence Sulfur Meters Published on 2021-12-28 2022-06-28 Implementation Released by the State Administration for Market Regulation Calibration Specification for X-ray Fluorescence Sulfur Meters Focal Point. National Technical Committee of Physical Chemistry and Metrology Main drafting unit. Xinjiang Uygur Autonomous Region Metrology and Testing Research Institute Heilongjiang Metrology Verification and Testing Institute Participating in the drafting unit. Henan Institute of Metrology PetroChina Dushanzi Petrochemical Company Shanghai Jingpu Technology Co., Ltd. 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. Wang Jinrong (Xinjiang Uygur Autonomous Region Metrology and Testing Research Institute) Gulinar Zunong (Xinjiang Uygur Autonomous Region Metrology and Testing Research Institute) Ding Haiming (Heilongjiang Metrology Verification and Testing Institute) Participating drafters. Zhao Li (Xinjiang Uygur Autonomous Region Metrology and Testing Research Institute) Kong Xiaoping (Henan Institute of Metrology) Li Jun (PetroChina Dushanzi Petrochemical Company) Liu Huzhou (Shanghai Jingpu Technology Co., Ltd.)

Introduction (Ⅱ) 1 Scope(1) 2 References (1) 3 Overview(1) 4 Metrology Characteristics(1) 5 Calibration Conditions(2) 5.1 Environmental conditions (2) 5.2 Certified Reference Materials (2) 6 Calibration items and calibration methods (2) 6.1 Indication error(2) 6.2 Repeatability(2) 6.3 Stability(3) 6.4 Detection limit(3) 7 Expression of calibration results (3) 8 Recalibration interval(4) Appendix A Calibration Raw Record Format(5) Appendix B Calibration Certificate (Inner Page) Format (6) Appendix Example of Measurement Uncertainty Evaluation of Indication Error of CX-Ray Fluorescence Sulfur Meter (7)

Introduction

JJF 1071-2010 "Rules for the Compilation of National Metrology Calibration Standards", JJF 1001-2011 "General Metrology Terms and Definition" and JJF 1059.1-2012 "Measurement Uncertainty Evaluation and Representation" together constitute the basis for the formulation of this specification Series Specifications. This specification refers to GB/T 11140-2008 "Determination of sulfur content in petroleum products by wavelength dispersive X-ray fluorescence Spectroscopy", GB/T 17040-2019 "Determination of Sulfur Content in Petroleum and Petroleum Products Energy Dispersive X-ray Fluorescence Light Spectroscopy", GB/T 17606-2009 "Determination of Sulfur Content in Crude Oil by Energy Dispersive X-ray Fluorescence Spectrometry", SH/T 0742-2004 "Determination of Sulfur Content in Gasoline (Energy Dispersive X-ray Fluorescence Spectrometry)" and NB/SH/T 0842-2017 "Single wavelength dispersive X-ray fluorescence spectroscopy for the determination of sulfur content in light liquid fuels" relevant content of the Law. This specification is published for the first time. Calibration Specification for X-ray Fluorescence Sulfur Meters

1 Scope

This specification applies to the calibration of X-ray fluorescence sulfur meters for the measurement of sulfur content in crude oil and petroleum products. The mass fraction determination range does not exceed 5%.

2 Reference documents

This specification references the following documents. GB/T 11140-2008 Determination of sulfur content in petroleum products by wavelength dispersive X-ray fluorescence spectrometry GB/T 17040-2019 Measurement of sulfur content in petroleum and petroleum products Energy-dispersive X-ray fluorescence spectrometry GB/T 17606-2009 Determination of sulfur content in crude oil Energy dispersive X-ray fluorescence spectrometry SH/T 0742-2004 Determination of sulfur content in gasoline (energy dispersive X-ray fluorescence spectrometry) NB/SH/T 0842-2017 Determination of Sulfur Content in Light Liquid Fuels Single Wavelength Dispersive X-ray Fluorescence Light Spectroscopy For dated references, only the dated version applies to this specification; for undated references document, the latest version of which (including all amendments) applies to this document.

3 Overview

X-ray fluorescence sulfur meter is used to measure the sulfur content in crude oil and petroleum products. Divided into energy dispersion type and wavelength dispersion type. The basic working principle is. put the sample in the X-ray beam, the X-ray The X-ray emitted by the tube excites the sulfur atoms in the sample, producing characteristic X-ray spectral lines of sulfur element, and energy dispersive X-ray fluorescence. The optical sulfur analyzer measures the characteristic X-ray intensity and wavelength of sulfur element through an X-ray detector with a certain energy resolution. The dispersive X-ray fluorescence sulfur analyzer measures the intensity of the sulfur Kα line at the wavelength of 0.5373 nm by means of crystal spectroscopy and detectors. According to the intensity, the samples were quantitatively analyzed by X-ray fluorescence sulfur analyzer. X-ray fluorescence sulfur analyzer (hereinafter referred to as the instrument) is mainly excited by an excitation source (including a radioactive source or a tube to excite X-rays) radiation source), disperser, sample chamber, detector and signal analysis system.

4 Metrology characteristics

The metering characteristics of the instrument are shown in Table 1. Table 1 Metrology characteristics of the instrument Calibration item Sulfur content < 500mg/kg 0.05%~5% (mass fraction) Maximum allowable error ± (8% measuring point 2) mg/kg ±8% Repeatability (4% measuring point 1) mg/kg 4% Stability 8% 6% Detection limit 15mg/kg - ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1952-2021_English be delivered?

Answer: Upon your order, we will start to translate JJF 1952-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1952-2021_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1952-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.