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Position: Chinese Standard in English/GB/T 39552.2-2020
GB/T 39552.2-2020   Sunglasses and sunglare filters-Part 2:Test methods (English Version)
Standard No.: GB/T 39552.2-2020 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 27000 words Price(USD):810.0 remind me the price change

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Implemented on:2021-12-1 Delivery: via email in 1 business day
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Standard No.: GB/T 39552.2-2020
English Name: Sunglasses and sunglare filters-Part 2:Test methods
Chinese Name: 太阳镜和太阳镜片 第2部分:试验方法
Chinese Classification: C73    Articles for labor protection
Professional Classification: GB    National Standard
Issued by: SAMR; SAC
Issued on: 2020-12-14
Implemented on: 2021-12-1
Status: valid
Language: English
File Format: PDF
Word Count: 27000 words
Price(USD): 810.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. GB/T 39552 consists of the following two parts under the general title Sunglasses and sunglare filters: ——Part 1: General requirements; ——Part 2: Test methods. This is Part 2 of GB/T 39552. This part is developed in accordance with the rules given in GB/T 1.1-2009. This standard was redrafted by reference to but is not equivalent to ISO 12311:2013 Personal protective equipment - Test method for sunglass and related eyewear. This part is under the jurisdiction of the National Technical Committee 103 on Optics and Photonics of Standardization Administration of China (SAC/TC 103). Sunglasses and sunglare filters – Part 2: Test methods 1 Scope This part of GB/T 39552 specifies the test methods of afocal sunglasses and sunglare filters. This part is applicable to sunglasses, sunglare filters and clip-ons for general use, including road use and driving. The test methods for the transmittance performance of medically-prescribed corrective sunglasses and sunglare filters may refer to this part. This part is not applicable to filters for protection against radiation from artificial light sources, such as those used in solaria, goggles for industrial use, and special filters intended for direct observation of the sun, such as for viewing a solar eclipse. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6682 Water for analytical laboratory use - Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD) GB 10810.1-2005 Uncut finished spectacle lenses - Part 1: Single-vision and multifocal lenses (ISO 8980-1:2004, MOD) GB 10810.5-2012 Uncut finished spectacle lenses - Part 5: Requirements of abrasion-resistant for spectacle lens surfaces (ISO 8980-5:2005, MOD) GB/T 26397 Ophthalmic optics - Terminology (GB/T 26397-2011, ISO 13666:1998, MOD) GB 39552.1-2020 Sunglasses and sunglare filters - Part 1: General requirements (ISO 12312-1:2013, MOD) JJF 1106 Calibration specification of transmittance measuring equipment for ophthalmic products ISO/TS 24348:2007 Ophthalmic optics-Spectacle frames - Method for the simulation of wear and detection of nickel release from metal and combination spectacle frames 3 Terms and definitions For the purposes of this standard, the terms and definitions given in GB/T 26397 apply.   4 General principles 4.1 Test environment Unless otherwise specified, all tests in this part shall be conducted in an indoor environment with a temperature of (23±5)℃ and a relative humidity of 30%~80%. 4.2 Position of test Unless otherwise specified, all transmittance tests, optical characteristic tests and impact resistance tests in this part shall be carried out at the wearing position of the sample. If the sample does not indicate the wearing position, the tests shall be carried out at the reference point. 5 Construction and materials Construction and materials shall be assessed by visual inspection specified in GB 10810.1-2005, 6.6. 6 Transmittance 6.1 Sunglasses and sunglare filters 6.1.1 Test apparatus A spectrophotometer may be used. The light incident angle of the test apparatus for luminous reflectance shall be less than or equal to 17°, and the reflected light shall be fully received by the detector of the test apparatus. 6.1.2 Test procedure Use the test apparatus for measurement. If the transmittance changes are caused by different lens thicknesses, it shall be calculated according to the description and calculation method in Annex A. 6.2 Medically-prescribed corrective sunglasses and sunglare filters 6.2.1 Test apparatus The test apparatus shall meet the requirements of JJF 1106. The light incident angle of the test apparatus for luminous reflectance shall be less than or equal to 17°, and the reflected light shall be fully received by the detector of the test apparatus.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 General principles 4.1 Test environment 4.2 Position of test 5 Construction and materials 6 Transmittance 6.1 Sunglasses and sunglare filters 6.2 Medically-prescribed corrective sunglasses and sunglare filters 6.3 Calculations of luminous transmittance τV 6.4 Uniformity of luminous transmittance 6.5 Calculation of solar UV transmittance 6.6 Calculation of solar blue-light transmittance τsb 6.7 Calculation of solar IR transmittance τSIR 6.8 Calculation of luminous reflectance ρV 6.9 Calculation of relative visual attenuation quotient Q 6.10 Scattered light 6.11 Plane of transmission of polarizing filters and polarizing sunglasses 6.12 Photochromic filters 7 Optical characteristics 7.1 Spherical power and astigmatic power 7.2 Prism imbalance of complete sunglasses or filters covering both eyes 8 Mechanical properties 8.1 Fatigue strength of sunglasses 8.2 Bridge deformation and filter retention 8.3 Resistance to solar radiation 8.4 Resistance to ignition 8.5 Performance of coating layer 8.6 Protective performance 8.7 Resistance to abrasion 8.8 Nickel release Annex A (Normative) Relationship between thickness and transmittance of sunglare filters Annex B (Normative) Product of the energy distribution of Standard Illuminant D65 and the spectral visibility function of the average human eye for daylight vision Annex C (Normative) Spectral functions for the calculation of solar UV and solar blue light transmittance values Annex D (Normative) Spectral power distribution of solar irradiance in the infrared spectrum for the calculation of the solar infrared transmittance Annex E (Normative) Spectral distribution of radiation in incandescent signal lights weighted by the sensitivity of the human eye V(λ) Annex F (Informative) Spectral distribution of radiation in LED signal lights weighted by the sensitivity of the human eye V(λ) Annex G (Informative) Method of variable distance for the calibration of measuring instruments for telescope method Annex H (Normative) Conversion between measurement results by telescope method and focimeter method Annex I (Normative) Application of uncertainty of measurement Annex J (Informative) Long wavelength pass filter Annex K (Informative) Uncertainty analysis of spectrophotometry Bibliography
Referred in GB/T 39552.2-2020:
*GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
*GB 10810.1-2005 Uncut finished spectacle lenses - Part 1: Single-vision and multifocal lenses
*GB 10810.5-2012 Uncut finished spectacle lenses—Part 5:Requirements of abrasion-resistant for spectacle lens surfaces
*GB/T 26397-2011 Ophthalmic optics—Terminology
*GB 39552.1-2020 Sunglasses and sunglare filters—Part 1: General requirements
*JJF 1106-2003 Calibration Specification of Transmittance Measuring Equipment for Ophthalmic Products
*GB/T 35590-2017 Information technology―General specification for portable digital equipments used power bank
*QB/T 1858-2004 Perfume and cologne
*HG/T 20592-2009 Stee1 Pipe F1anges (PN designated)
*GB 3565-2005 Safety requirements for bicycles
*GB/T 39335-2020 Information security technology—Guidance for personal information security impact assessment
*GA 374-2019 Burglary-resistant electronic locks
*GB/T 19001-2016 Quality management systems―Requirements
*GB 4943.1-2022 Audio/video,information and communication technology equipment—Part 1: Safety requirements
*GB 4806.7-2016 National Food Safety Standard - Food Contact Plastic Materials and Articles
*GB/T 35590-2017 Information technology―General specification for portable digital equipments used power bank
*GB 150-2011 Pressure Vessels (Collection GB150.1~150.4-2011)
*GB/T 5750-2006 Standard examination methods for drinking water
*JB/T 10391-2008 Specification for Yseries(IP44)three asynchronous motor (Frame size 80~355)
*GB 14880-2012 National Food Safety Standard for the Use of Nutritional Fortification Substances in Foods
*GB 9706.1-2020 Medical electrical equipment—Part 1: General requirements for basic safety and essential performance
GB/T 39552.2-2020 is referred in:
*GB 39552.1-2020 Sunglasses and sunglare filters—Part 1: General requirements
*T/COOA 4-2022 Prescription sunglasses and lenses
*GB/T 42801-2023 Juvenile products—General requirements for daily sports protection articles
Code of China
Standard
GB/T 39552.2-2020  Sunglasses and sunglare filters-Part 2:Test methods (English Version)
Standard No.GB/T 39552.2-2020
Statusvalid
LanguageEnglish
File FormatPDF
Word Count27000 words
Price(USD)810.0
Implemented on2021-12-1
Deliveryvia email in 1 business day
Detail of GB/T 39552.2-2020
Standard No.
GB/T 39552.2-2020
English Name
Sunglasses and sunglare filters-Part 2:Test methods
Chinese Name
太阳镜和太阳镜片 第2部分:试验方法
Chinese Classification
C73
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2020-12-14
Implemented on
2021-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
27000 words
Price(USD)
810.0
Keywords
GB/T 39552.2-2020, GB 39552.2-2020, GBT 39552.2-2020, GB/T39552.2-2020, GB/T 39552.2, GB/T39552.2, GB39552.2-2020, GB 39552.2, GB39552.2, GBT39552.2-2020, GBT 39552.2, GBT39552.2
Introduction of GB/T 39552.2-2020
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. GB/T 39552 consists of the following two parts under the general title Sunglasses and sunglare filters: ——Part 1: General requirements; ——Part 2: Test methods. This is Part 2 of GB/T 39552. This part is developed in accordance with the rules given in GB/T 1.1-2009. This standard was redrafted by reference to but is not equivalent to ISO 12311:2013 Personal protective equipment - Test method for sunglass and related eyewear. This part is under the jurisdiction of the National Technical Committee 103 on Optics and Photonics of Standardization Administration of China (SAC/TC 103). Sunglasses and sunglare filters – Part 2: Test methods 1 Scope This part of GB/T 39552 specifies the test methods of afocal sunglasses and sunglare filters. This part is applicable to sunglasses, sunglare filters and clip-ons for general use, including road use and driving. The test methods for the transmittance performance of medically-prescribed corrective sunglasses and sunglare filters may refer to this part. This part is not applicable to filters for protection against radiation from artificial light sources, such as those used in solaria, goggles for industrial use, and special filters intended for direct observation of the sun, such as for viewing a solar eclipse. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6682 Water for analytical laboratory use - Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD) GB 10810.1-2005 Uncut finished spectacle lenses - Part 1: Single-vision and multifocal lenses (ISO 8980-1:2004, MOD) GB 10810.5-2012 Uncut finished spectacle lenses - Part 5: Requirements of abrasion-resistant for spectacle lens surfaces (ISO 8980-5:2005, MOD) GB/T 26397 Ophthalmic optics - Terminology (GB/T 26397-2011, ISO 13666:1998, MOD) GB 39552.1-2020 Sunglasses and sunglare filters - Part 1: General requirements (ISO 12312-1:2013, MOD) JJF 1106 Calibration specification of transmittance measuring equipment for ophthalmic products ISO/TS 24348:2007 Ophthalmic optics-Spectacle frames - Method for the simulation of wear and detection of nickel release from metal and combination spectacle frames 3 Terms and definitions For the purposes of this standard, the terms and definitions given in GB/T 26397 apply.   4 General principles 4.1 Test environment Unless otherwise specified, all tests in this part shall be conducted in an indoor environment with a temperature of (23±5)℃ and a relative humidity of 30%~80%. 4.2 Position of test Unless otherwise specified, all transmittance tests, optical characteristic tests and impact resistance tests in this part shall be carried out at the wearing position of the sample. If the sample does not indicate the wearing position, the tests shall be carried out at the reference point. 5 Construction and materials Construction and materials shall be assessed by visual inspection specified in GB 10810.1-2005, 6.6. 6 Transmittance 6.1 Sunglasses and sunglare filters 6.1.1 Test apparatus A spectrophotometer may be used. The light incident angle of the test apparatus for luminous reflectance shall be less than or equal to 17°, and the reflected light shall be fully received by the detector of the test apparatus. 6.1.2 Test procedure Use the test apparatus for measurement. If the transmittance changes are caused by different lens thicknesses, it shall be calculated according to the description and calculation method in Annex A. 6.2 Medically-prescribed corrective sunglasses and sunglare filters 6.2.1 Test apparatus The test apparatus shall meet the requirements of JJF 1106. The light incident angle of the test apparatus for luminous reflectance shall be less than or equal to 17°, and the reflected light shall be fully received by the detector of the test apparatus.
Contents of GB/T 39552.2-2020
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 General principles 4.1 Test environment 4.2 Position of test 5 Construction and materials 6 Transmittance 6.1 Sunglasses and sunglare filters 6.2 Medically-prescribed corrective sunglasses and sunglare filters 6.3 Calculations of luminous transmittance τV 6.4 Uniformity of luminous transmittance 6.5 Calculation of solar UV transmittance 6.6 Calculation of solar blue-light transmittance τsb 6.7 Calculation of solar IR transmittance τSIR 6.8 Calculation of luminous reflectance ρV 6.9 Calculation of relative visual attenuation quotient Q 6.10 Scattered light 6.11 Plane of transmission of polarizing filters and polarizing sunglasses 6.12 Photochromic filters 7 Optical characteristics 7.1 Spherical power and astigmatic power 7.2 Prism imbalance of complete sunglasses or filters covering both eyes 8 Mechanical properties 8.1 Fatigue strength of sunglasses 8.2 Bridge deformation and filter retention 8.3 Resistance to solar radiation 8.4 Resistance to ignition 8.5 Performance of coating layer 8.6 Protective performance 8.7 Resistance to abrasion 8.8 Nickel release Annex A (Normative) Relationship between thickness and transmittance of sunglare filters Annex B (Normative) Product of the energy distribution of Standard Illuminant D65 and the spectral visibility function of the average human eye for daylight vision Annex C (Normative) Spectral functions for the calculation of solar UV and solar blue light transmittance values Annex D (Normative) Spectral power distribution of solar irradiance in the infrared spectrum for the calculation of the solar infrared transmittance Annex E (Normative) Spectral distribution of radiation in incandescent signal lights weighted by the sensitivity of the human eye V(λ) Annex F (Informative) Spectral distribution of radiation in LED signal lights weighted by the sensitivity of the human eye V(λ) Annex G (Informative) Method of variable distance for the calibration of measuring instruments for telescope method Annex H (Normative) Conversion between measurement results by telescope method and focimeter method Annex I (Normative) Application of uncertainty of measurement Annex J (Informative) Long wavelength pass filter Annex K (Informative) Uncertainty analysis of spectrophotometry Bibliography
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Keywords:
GB/T 39552.2-2020, GB 39552.2-2020, GBT 39552.2-2020, GB/T39552.2-2020, GB/T 39552.2, GB/T39552.2, GB39552.2-2020, GB 39552.2, GB39552.2, GBT39552.2-2020, GBT 39552.2, GBT39552.2