GB/T 16422.4-2022: Plastics - Methods of exposure to laboratory light sources - Part 4: Open-flame carbon-arc lamps

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Scope

This Document specifies methods for exposing specimens to open-flame carbon-arc lamps in
the presence of moisture to reproduce the weathering effects that occur when materials are
exposed in actual end-use environments in daylight or daylight filtered through window glass.
This Document is applicable to the weather resistance evaluation of plastics and the comparison
test of weather resistance among plastics under the condition of light source exposure of carbon-
arc lamp.
The specimens are exposed to filtered open-flame carbon-arc light under controlled
environmental conditions (temperature, moisture). Various filters are described.
Specimen preparation and evaluation of the results are covered in other national standards for
specific materials.
General guidance is given in ISO 4892-1.

Basic Data

Standard ID	GB/T 16422.4-2022 (GB/T16422.4-2022)
Description (Translated English)	Plastics - Methods of exposure to laboratory light sources - Part 4: Open-flame carbon-arc lamps
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G31
Word Count Estimation	14,182
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration