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GBZ39942-2021 English PDF

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US$564.00 · In stock
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GBZ39942-2021: Application of GB/T 20145 for the assessment of blue light hazard to light sources and luminaires
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/Z 39942-2021	564	Add to Cart	3 days	Application of GB/T 20145 for the assessment of blue light hazard to light sources and luminaires	Valid

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Basic data

Standard ID: GB/Z 39942-2021 (GB/Z39942-2021)
Description (Translated English): Application of GB/T 20145 for the assessment of blue light hazard to light sources and luminaires
Sector / Industry: National Standard
Classification of Chinese Standard: K71
Word Count Estimation: 30,39
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GBZ39942-2021: Application of GB/T 20145 for the assessment of blue light hazard to light sources and luminaires

---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.
GB /Z 39942-2021 Application of GB/T 20145 for the assessment of blue light hazard to light sources and luminaires ICS 29.140.99 K71 National Standardization Guiding Technical Documents of the People's Republic of China Apply GB/T 20145 to evaluate the performance of light sources and lamps Blue light hazard ApplicationofGB/T 20145fortheassessmentofbluelighthazard (IEC TR62778.2014, ApplicationofIEC 62471fortheassessmentof Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 General 5 5 Spectrum, color temperature and blue light hazards 6 5.1 Calculate the blue light hazard amount and photometric from the emission spectrum 6 5.2 Brightness and illuminance with tmax value below 100s 8 6 LED packages, LED modules, lamps and lamps 10 7 Measurement information flow 11 7.1 Basic process 11 7.2 Radiance measurement conditions 12 7.3 Special case (Ⅰ). Replacement by other types of lights or LED modules 13 7.4 Special case (Ⅱ). Array and module of self-luminous light source 13 8 Classification of risk groups 14 Appendix A (informative appendix) The geometric relationship between radiance, irradiance and radiant intensity 15 Appendix B (informative appendix) Distance characteristics of specific light source tmax 17 Appendix C (informative appendix) Summary of recommendations for the consistent application of GB/T 20145 for evaluating blue light hazards of light sources and lamps 19 Appendix D (informative appendix) Detailed evaluation of arrays and crystal groups of self-luminous light sources including LED packages 22 Reference 27

Foreword

This guiding technical document was drafted in accordance with the rules given in GB/T 1.1-2009. The translation method used in this guiding technical document is equivalent to the IEC TR62778.2014 "Application of IEC 62471 Evaluation of Light Sources and Luminaires" Blue Light Harm." The Chinese documents that have a consistent correspondence with the normatively cited international documents in this guiding technical document are as follows. ---GB/T 2900 (all parts) Electrical terminology [IEC 60050 (all parts)] ---GB/T 24826-2016 LED products and related equipment terms and definitions for general lighting (IEC 62504.2014, IDT) This guiding technical document has made the following editorial changes. ---In order to be consistent with my country's standard system, the standard name is changed to "Applying GB/T 20145 to evaluate the blue light hazard of light sources and lamps harm". This guiding technical document was proposed by the China National Light Industry Council. This guiding technical document is under the jurisdiction of the National Lighting Standardization Technical Committee (SAC/TC224). Drafting units of this guiding technical document. Zhejiang Yangguang Lighting Electric Group Co., Ltd., Xiamen Topstar Lighting Co., Ltd., China Home Appliance Light Source Quality Supervision and Inspection Center (Beijing), Foshan Electric Lighting Co., Ltd., National Semiconductor Light Source Product Quality Supervision and Inspection Xin (Guangdong), Hefei Benshan Electronic Technology Co., Ltd., Hangzhou Maple Sunlight Optoelectronics Co., Ltd., Foshan Huaquan Electric Lighting Co., Ltd. Division, Zhejiang Haoting Lighting Co., Ltd. The main drafters of this guiding technical document. Zheng Dong, Chen Songbo, Hua Shuming, Wei Bin, Li Benliang, Zhou Renyi, Chen Kai, Zeng Haisheng, Jin Zeyong. Apply GB/T 20145 to evaluate the blue light hazards of light sources and lamps

1 Scope

This technical guidance document gives the blue light of all lighting products whose main radiant energy is in the visible light range (380nm~780nm). Instructions and guidance for light hazard evaluation, through optical and spectral calculations, the photobiological safety measurement described in GB/T 20145 tells us Product information, and if the product is intended to be a component of a higher-level lighting product, you can get how to use this information from the component (e.g. LED packages, LED modules, or lamps) are delivered to higher-level lighting products (such as lamps). Appendix C gives a summary of recommendations that help to consistently apply GB/T 20145 to evaluate the blue light hazards of light sources and luminaires. Note. It is expected that the safety standards of HID and LED products will refer to this guiding technical document.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 20145-2006 Photobiological safety of lamps and lamp systems [CIES009/E.2002(IEC 62471.2006),IDT] IEC 60050 Electrotechnical Terms (all parts except 845) [InternationalElectrotechnicalVacabulary(alparts except845)] IEC 60050-845.1987 Electrical Engineering Terminology Lighting (InternationalElectrotechnicalVocabulary-Part 845. Lighting) CIES017/E.2011 International Lighting Vocabulary (ILV.InternationalLightingVocabulary)

3 Terms and definitions

IEC 60050-845.1987, GB/T 20145-2006 and CIES017/E.2011 defined and the following terms and definitions apply In this document. 3.1 Blue light hazard efficiency of luminous radiation KB,v The ratio of the amount of blue light hazard to the corresponding light measure. Note 1.The unit of blue light hazard efficiency of light radiation. W/lm. Note 2.Φλ(λ) in the relationship can be replaced with Lλ(λ) or Eλ(λ). KB,v= ∫Φλ λ()·B λ()·dλ Km·∫Φλ λ()·V(λ)·dλ In the formula. Km=683lm/W Note 3.KB,v=LB/L=EB/E. 3.2 Bluelighthazardefficiencyofradiation ηB The ratio of the amount of blue light hazard to the corresponding amount of radiation. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GBZ39942-2021_English be delivered?

Answer: Upon your order, we will start to translate GBZ39942-2021_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 GBZ39942-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GBZ39942-2021_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.