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JJF 2049-2023 English PDF

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JJF 2049-2023: Calibration Specification for Total Radiant Flux of Ultraviolet Germicidal Lamp
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JJF 2049-2023English309 Add to Cart 3 days [Need to translate] Calibration Specification for Total Radiant Flux of Ultraviolet Germicidal Lamp Valid JJF 2049-2023

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Basic data

Standard ID JJF 2049-2023 (JJF2049-2023)
Description (Translated English) Calibration Specification for Total Radiant Flux of Ultraviolet Germicidal Lamp
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 14,144
Date of Issue 2023-06-30
Date of Implementation 2023-12-30
Issuing agency(ies) State Administration for Market Regulation

JJF 2049-2023: Calibration Specification for Total Radiant Flux of Ultraviolet Germicidal Lamp

---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 Calibration specification for total radiant flux of ultraviolet germicidal lamp Released on 2023-06-30 2023-12-30 implementation Released by the State Administration for Market Regulation Total Radiant Flux of UV Germicidal Lamp Calibration specification Responsible unit: National Optical Metrology Technical Committee Main drafting unit: China Institute of Metrology Participating in the drafting unit: China Academy of Testing Technology Shandong Institute of Metrology This specification entrusts the National Optical Metrology Technical Committee to be responsible for interpretation The main drafters of this specification: Liu Jinyuan (National Institute of Metrology) Huo Chao (National Institute of Metrology) Su Changlin (China Academy of Testing Technology) Kong Wei (Shandong Institute of Metrology) Participating drafters: Liu Hui (National Institute of Metrology) Su Hongyu (China Academy of Testing Technology)

Table of contents

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Overview(1) 4 Metrological characteristics(1) 4:1 The UV radiation flux of the UV germicidal lamp (1) 4:2 Stability(1) 5 Calibration conditions(2) 5:1 Environmental conditions (2) 5:2 Measuring standards and other equipment(2) 6 Calibration Items and Calibration Methods(3) 6:1 Checks before calibration (3) 6:2 UV radiation flux (3) 6:3 Stability(3) 7 Expression of Calibration Results(4) 8 Recalibration interval(4) Appendix A Recommended format for the inner page of the calibration certificate for total radiant flux of germicidal UV lamps (5) Appendix B Original Records of Calibration of Total Radiant Flux of Ultraviolet Germicidal Lamps (6) Appendix C Example of Uncertainty Assessment of Total Radiant Flux of Ultraviolet Germicidal Lamps (7)

Introduction

JJF 1001-2011 "General Metrology Terminology", JJF 1032-2005 "Terms and Definitions of Optical Radiation Metrology" Definition", JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty", JJF 1071-2010 "National Metrology Calibration The "Rules for Writing Specifications" together constitute the basic series of specifications that support the formulation of this specification: This specification is published for the first time: Calibration specification for total radiant flux of ultraviolet germicidal lamp

1 Scope

This calibration standard is applicable to electric power below 65W, made of quartz glass, and the peak wavelength of ultraviolet radiation is Calibration of the total radiant flux of 253:7nm single-ended, double-ended or self-ballasted UV germicidal lamps:

2 References

This specification references the following documents: JJG247 total luminous flux standard incandescent lamp GB/T 19258 Ultraviolet Germicidal Lamps 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 Overview

The ultraviolet germicidal lamp is a low-pressure mercury vapor discharge lamp with a bulb made of quartz glass or other UV-transparent glass: Electricity produces ultraviolet radiation with a wavelength of 253:7nm, which can kill bacteria and viruses: Due to different power supply working methods, ultraviolet germicidal lamps are divided into single-ended lamps, double-ended lamps and self-rectifying lamps: UV germicidal lamps in operation During operation, a certain amount of ozone will be produced: Ultraviolet germicidal lamps are mainly used in medical and health, food safety, epidemic prevention and other fields area: Since ultraviolet radiation needs to reach a certain intensity to achieve sufficient bactericidal effect, it is necessary to characterize the ultraviolet germicidal lamp Calibration of the total radiant flux for UV radiation capability is critical:

4 Metrological characteristics

4:1 The UV radiation flux of the UV germicidal lamp Depending on the electric power of the ultraviolet germicidal lamp, the ultraviolet radiation flux should not be lower than the provisions in Table 1: Table 1 UV radiation flux Nominal power range/W UV radiation flux/W Double-ended lamps Single-ended lamps Self-ballasted lamps < 9 0:12×A 0:12×A 0:10×A 9~17 0:18×A 0:16×A 0:13×A >17 0:23×A 0:20×A 0:17×A Note: where A is the electric power of the ultraviolet germicidal lamp: The above indicators are not applicable to eligibility determination and are for reference only: 4:2 Stability After 30 minutes of preheating, the radiation flux stability of the ultraviolet germicidal lamp is not more than 2%/30min:

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