Global Recycled Standard (GRS) Frequently Asked Questions
Short answers to the questions buyers ask most often about Global Recycled Standard (GRS).
What does it mean?
certification for recycled content and social criteria. Working figures for Global Recycled Standard (GRS) normally sit around requires transaction certificates in mainstream production. Note Textile Exchange scheme on the tech pack so nobody tests against an older revision.
What value should be specified?
Start from requires transaction certificates and adjust for the end use of the garment. Record elastane content alongside Global Recycled Standard (GRS), because blends shift the measured value. A result outside requires transaction certificates usually points to process drift rather than to the fibre itself.

How is it tested?
Textile Exchange scheme. Keeping reference values for Global Recycled Standard (GRS) lets suppliers quote without extra sampling rounds. Ask for conditioning details together with Textile Exchange scheme, 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 Global Recycled Standard (GRS) normally sit around requires transaction certificates in mainstream production. Note Textile Exchange scheme 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 Global Recycled Standard (GRS), because blends shift the measured value. A result outside requires transaction certificates usually points to process drift rather than to the fibre itself.