GB/T 8426-1998 specifies the conventional method for testing the color fastness to light of textiles using natural daylight. Samples and blue wool standards are exposed to sunlight together, and the color fastness grade is assessed by comparing the degree of fading between them. This method is significantly influenced by weather and geographical location and is now largely replaced by artificial light source methods.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | W04 | ICS | 59.080.30 |
| Release Date | 1998-11-26 00:00:00 | Implementation Date | 1999-05-01 00:00:00 |