Restricted Substances List (RSL) Frequently Asked Questions
Short answers to the questions buyers ask most often about Restricted Substances List (RSL).
What does it mean?
list of banned or limited chemicals. Working figures for Restricted Substances List (RSL) normally sit around reviewed each season in mainstream production. Note brand-specific published list on the tech pack so nobody tests against an older revision.
What value should be specified?
Start from reviewed each season and adjust for the end use of the garment. Record elastane content alongside Restricted Substances List (RSL), because blends shift the measured value. A result outside reviewed each season usually points to process drift rather than to the fibre itself.
How is it tested?
brand-specific published list. Keeping reference values for Restricted Substances List (RSL) lets suppliers quote without extra sampling rounds. Ask for conditioning details together with brand-specific published list, since both affect the reading.
Why does it change between lots?
Process variables such as finishing temperature and elastane batch cause the normal spread of results. Working figures for Restricted Substances List (RSL) normally sit around reviewed each season in mainstream production. Note brand-specific published list on the tech pack so nobody tests against an older revision.
Can results be compared across suppliers?
Only when the same standard revision and conditioning are used; otherwise measurements are not equivalent. Record elastane content alongside Restricted Substances List (RSL), because blends shift the measured value. A result outside reviewed each season usually points to process drift rather than to the fibre itself.
