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JJF 1936-2021 English PDF

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US$379.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1936-2021: Calibration Specification for UV Analyzers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1936-2021	379	Add to Cart	4 days	Calibration Specification for UV Analyzers	Valid

Similar standards

JJG 879 JJF 1106 JJG 810 JJF 2002 JJF 1937 JJF 1932

Basic data

Standard ID: JJF 1936-2021 (JJF1936-2021)
Description (Translated English): Calibration Specification for UV Analyzers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A60
Classification of International Standard: 17.180
Word Count Estimation: 17,133
Date of Issue: 2021-12-08
Date of Implementation: 2022-06-08
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard is applicable to the calibration of various ultraviolet analyzers that use the fluorescence emitted by substances under the irradiation of ultraviolet light sources to observe, analyze and photograph substances.

JJF 1936-2021: Calibration Specification for UV 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.
National Metrology Technical Specifications of the People's Republic of China Specifications for Calibration of UV Analyzers Released on 2021-12-08 2022-06-08 Implementation Released by the State Administration for Market Regulation Specifications for Calibration of UV Analyzers UVAnalyzers Responsible unit: National Optical Metrology Technical Committee Main drafting unit: Guangdong Institute of Metrology Shandong Institute of Metrology Jiangsu Institute of Metrology Participated in the drafting unit: Hubei Institute of Metrology and Testing Technology Shanghai Jiapeng Technology Co:, Ltd: This specification entrusts the National Optical Metrology Technical Committee to be responsible for interpretation The main drafters of this specification: Zhu Junqing (Guangdong Institute of Metrology) Kong Wei (Shandong Institute of Metrology) Zhang Fan (Jiangsu Institute of Metrology) Lu Derun (Guangdong Institute of Metrology) Participating drafters: Zhu Qile (Guangdong Institute of Metrology) Xu Xun (Hubei Institute of Metrology and Testing Technology) Wang Peipei (Shanghai Jiapeng Technology Co:, Ltd:)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 terms(1) 4 Overview(1) 5 Metrological characteristics(2) 6 Calibration conditions(2) 6:1 Environmental conditions (2) 6:2 Calibration equipment and supporting equipment(2) 7 Calibration Items and Calibration Methods(2) 7:1 Peak wavelength indication error(2) 7:2 UV irradiance (3) 8 Expression of Calibration Results(3) 9 Recalibration interval(4) Appendix A Recommended Format for Original Records (5) Appendix B Recommended Format for the Inside Page of the Calibration Certificate (6) Appendix C Example of Calibration Uncertainty Evaluation of Peak Wavelength Indication Error of UV Analyzer (7) Appendix D Example of Calibration Uncertainty Evaluation of UV Radiation Illuminance for UV Analyzers (9)

Introduction

JJF 1001 "General Metrology Terms and Definitions", JJF 1032 "Terms and Definitions of Optical Radiation Metrology", JJF 1059:1 "Assessment and Expression of Measurement Uncertainty", JJF 1071 "Rules for Writing National Metrology Calibration Standards", JJF 1094 "Characteristics Evaluation of Measuring Instruments" together constitute the basic series of regulations formulated in this specification: This specification is published for the first time: Specifications for Calibration of UV Analyzers

1 Scope

This specification is applicable to the observation, analysis and photographing of substances by using the fluorescence emitted by substances under the irradiation of ultraviolet light sources: Calibration of various UV analyzers:

2 References

This specification references the following documents: JJG879 UV Illuminance Meter GB/T 19258 Ultraviolet Germicidal Lamps QB/T 2989 Measurement method of ultraviolet irradiance and electrical parameters of ultraviolet high-pressure mercury lamp For dated references, only the dated version applies to this specification; for undated references document, its latest version (including all amendments) applies to this specification:

3 terms

3:1 Fluorescence fluorescence A luminescence phenomenon called photoluminescence: Light produced by radiative transitions between states of equal multiplicity: when to stop When the incident light is stopped, the luminescence phenomenon also disappears:

4 Overview

The ultraviolet analyzer uses the ultraviolet light source to emit and filter out the ultraviolet radiation after the residual visible light, and uniformly irradiates the ultraviolet radiation to be treated: Instrumentation for analyzing fluorescent samples: According to the different ways of observing fluorescence, UV analyzers are divided into reflection type and transmission type: opposite The commonly used wavelengths of radiant ultraviolet analyzers are 254nm and 365nm, which are suitable for fluorescence detection and analysis of various opaque materials: Analysis; transmission UV analyzers commonly use radiation in the range of 280nm~320nm, suitable for DNA and RNA electrophoresis gels Observation and photography of transparent samples: The UV analyzer consists of a UV light source, a filter, and an operating table: Figure 1 is the UV Analyzer block diagram: a) Structural diagram of reflective UV analyzer b) Structural diagram of transmissive UV analyzer Figure 1 Schematic diagram of the structure of the UV analyzer ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1936-2021_English be delivered?

Answer: Upon your order, we will start to translate JJF 1936-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1936-2021_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1936-2021_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.