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Calibration Specification for UV Analyzers
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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 | 17,160 |
| 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:)
Table of contents
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
...
