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New GB Standard for Sunglasses and Sunglare Filters in China

SafeGuardSSports and Leisure, Jewelry Bags and AccessoriesJanuary 20, 2022

In December 2021, the new GB standard, GB 39552.1-2020, for Sunglasses and Sunglare filters has been implemented as a mandatory requirement in China.

Standard, GB 39552.1-2020, and its testing method, GB/T 39552.2-2020, were published in November and December 2020 respectively. On December 1, 2021, GB 39552.1-2020 came into force as a mandatory requirement for sunglasses in China. It supersedes the previous standard, QB 2457-1999, which is now cancelled.

The objective of the new standard is to specify classifications and requirements for sunglasses, sunglare filters, clip-on sunglasses and replacement filters that are nominally afocal (plano power), and provide protection against solar radiation for general use including road use and driving. This standard is not applicable to eyewear for protection against radiation from artificial light sources, e.g. used in solaria, for occupational eye protection or for direct observation of the sun.

The standard aligns its requirements closely to those of ISO 12312-1: 2013, below is brief comparison table.

Test Items (Physical/Performance)

GB 39552.1-2020

ISO 12312-1: 2013

Construction and materialOO

Transmittance

  • Filter category
  • Uniformity
  • Requirements for road use and driving
OO
Wide angle scatteringOO
Additional transmittance requirements for specific filter typesO
(photochromic filters, polarizing filters)
O
(photochromic filters, polarizing filters and gradient filters)
Claimed transmittanceOO

Optical power

  • Spherical power
  • Astigmatic power
  • Prismatic power (prism imbalance)
OO
Local variations in refractive power/O
Increased endurance of sunglassesOO
(optional specification)
Frame (bridge) deformation and retention of filtersOO
Resistance to solar radiation OO
Resistance to ignitionOO
Resistance to perspirationOO
(optional specification)
Adhesive strength of cover layerO/
Coverage area/filter dimensionOo

Impact resistance of filters

  • Level 1 (16g steel ball)
  • Level 2 (43g steel ball)
  • Level 3 (high velocity impact)
o
(optional specification)
o
(optional specification)
Abrasion resistanceo
(optional specification)
o
(optional specification)
Minimum robustness of filters/O

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For inquiries, please contact:

John Wong
Technical Services Manager
SGS Hong Kong - Hardlines
t: +852-27653546 

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