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Decision fieldOpen accessZDHC Manufacturing Restricted Substances ListGlobalRemoveFree downloadSeamly2DGlobalRemoveOpen accessPattern Test Brief TemplateGlobalRemoveOpen accessPattern Grading & Size-Run Validation RecordGlobalRemove
Decision fit
Primary jobCheck standardsFind patterns & fitFind patterns & fitFind patterns & fit
Also useful forNo additional job recordedNo additional job recordedNo additional job recordedNo additional job recorded
AreaStandardsPatterns & fitPatterns & fitPatterns & fit
Best forChemical-input controls during manufacturingDigital pattern draftingPlanning a sewing, knitting, or crochet pattern testAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence
Know before usingThe MRSL controls manufacturing inputs within its stated scope. One formulation status or self-generated facility inventory report does not by itself prove a complete or externally verified chemical inventory, actual order recipe, implementation, worker protection, emissions, wastewater performance, or finished-product compliance. Verify the current version, law, brand program, safety rules, formulation identity and status, complete facility and order records, inventory-verification state, and finished-product RSL and testing requirements.Patternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels.The workflow is not a contract or quality certification; local legal duties and technical review may still apply.The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review.
Practical access
ForApparel brandsBothBothApparel brands
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessFree downloadOpen accessOpen access
FormatReferenceSoftwareStitch AuthorityStitch Authority
Source typeIndustry organizationOpen-source projectStitch AuthorityStitch Authority
Source and review
What the source establishesZDHC's current scope defines the MRSL as restrictions on intentional use of listed substances in commercial chemical formulations for textile, leather, rubber, foam, adhesive, and trim processing. Covered inputs include cleaners, dyes, auxiliaries, coatings, finishing agents, maintenance, wastewater-treatment, sanitation, and pest-control chemicals. ZDHC identifies version 3.1 as the current official MRSL, distinguishes formulation conformance from finished-product restrictions, and states that an ordinary Performance InCheck facility inventory is self-generated rather than externally verified.The maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum.The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.The guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments.
Linked page reviewedJul 30, 2026Jul 21, 2026Jul 15, 2026Jul 27, 2026
Next review dueOct 28, 2026Jan 17, 2027Jul 15, 2027Jul 27, 2027
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