RSL and MRSL

Restricted Substance Lists (RSL) and Manufacturing RSL (MRSL) compliance in denim mills: ZDHC standards, heavy metal limits, formaldehyde, and pH.

Technical Reference: RSL and MRSL

Subject Overview: Restricted substance lists address product-related chemical restrictions, while manufacturing restricted substance lists address chemicals used in manufacturing processes. Buyer programs can define their own requirements and versions.

Author & Reviewer
Gaurav Jain, Founder & Denim Sourcing Director at AzAttire
Industry Context
Commercial Denim Manufacturing, Quality Testing & Global Sourcing
Governing Test Standards
ASTM, AATCC, and ISO international textile evaluation standards
Associated Entity
Restricted Substances List (https://en.wikipedia.org/wiki/Registration,_Evaluation,_Authorisation_and_Restriction_of_Chemicals)
Practical Mill Sourcing Impact
Ensures dimensional stability, shade continuity, batch-to-batch repeatability, and garment wash house performance.