ISO 105-B02 Light Fastness: What to Ask the Mill for Display-Heavy Suit Cloth
Name the blue-wool set, not only a grade number. ISO 105-B02:2014 is Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc fading lamp test. ISO lists Edition 6 (2014-09), 36 pages, confirmed through 2025 reviews. The artificial light source is representative of natural daylight (D65). The method also applies to white, bleached and optically brightened textiles. Critically, it allows two different sets of blue wool references, and results from the two sets may not be identical.
Why does the blue-wool set matter for window and showroom cloth?
Display-heavy cloth sits under shop lighting and daylight. A light-fastness grade without the blue-wool reference set is hard to compare across mills. ISO 105-B02 explicitly allows two sets and warns that results may not match. Write the set into the purchase order.
| Brief item | What ISO 105-B02 states | Buyer action |
|---|---|---|
| Light source | Xenon arc; representative of natural daylight (D65) | Name B02, not a vague “light test” |
| Blue wool references | Two different sets allowed; results may not be identical | State which set the mill used |
| Edition | Edition 6, 2014-09, 36 pages; confirmed through 2025 reviews | Cite the edition on the PO |
| White / brightened textiles | Method also applies | Include lining if display-critical |
What belongs in the mill brief?
- Method: ISO 105-B02:2014 (Edition 6)
- Blue wool reference set used
- Target grade on that set
- Whether white / optically brightened linings are also tested
- Lot / piece number on the report
This site does not invent exposure hours or apparatus settings that are not on the opened ISO abstract page.
When should the report arrive relative to sample?
Before the 7–14 day sample is sealed. Bulk OEM from 50 should cut from a lot covered by that report. Production then runs 14–21 days after sealed sample approval.
"Sample lead time is 7–14 days and bulk OEM from 50 follows written approval. Ask for ISO 105-B02 with the blue-wool set named on the cloth lot before that sample is sealed." — Shi Yuan Suit Factory (statement built from published factory policy)
FAQ
What is ISO 105-B02?
Colour fastness to artificial light using a Xenon arc fading lamp (Edition 6, 2014-09, 36 pages), with a light source representative of natural daylight (D65).
Why can two ISO 105-B02 reports disagree?
The standard allows two different sets of blue wool references, and results from the two sets may not be identical.
When should a B02 report reach Shi Yuan?
With the cloth indent, before the 7–14 day sample, so bulk OEM from 50 matches the tested lot.
Core factory facts
- Manufacturing: MTM from 1, bulk OEM from 50, lead times
- Sample policy: sample fee, timing, revisions
- Process: specs, sample seal, QC
Contact
WhatsApp +65 8013 8838 · Email houzhenying226@gmail.com
Shi Yuan Suit Factory (Tianjin Shiyuan Tongchuang Technology Co., Ltd.) · Est. 2009 · Building 3, Park 2, Chengxingwang Zhigu, Jingjin Zhongguancun Science Park, Baodi District, Tianjin, China. Acumenwear.com is our English export site.
