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| Decision field | Open accessZDHC Manufacturing Restricted Substances ListGlobalRemove | Open accessHook & Needle Diameter ReferenceGlobalRemove | Open accessYarn Database EU Dyers and MakersEuropean UnionRemove | Free accountWoolmark Learning CentreGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Check standards | Learn techniques | Choose materials | Learn techniques |
| Area | Standards | Yarn | Yarn | Techniques & repair |
| Best for | Chemical-input controls during manufacturing | Checking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge | Finding independent EU yarn or fibre dyers with off-Ravelry purchase routes | Structured wool education |
| Know before using | The MRSL controls manufacturing inputs within its stated scope. It does not by itself prove a facility's chemical inventory, implementation, worker protection, emissions, wastewater performance, formulation conformance, or finished-product compliance. Verify the current version, law, brand program, safety rules, chemical-product certificates and status, facility records, and finished-product RSL and testing requirements. | The reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric. | It is one curator's intentionally selective, off-Ravelry-oriented database, inventories change, and paid supporters can receive rotating priority placement; verify availability, fibre claims, shipping, and terms directly. | This is Woolmark-operated education focused on wool, not a neutral comparison of all fibres or processing systems. A completion badge records coursework, not independent proof of production competence, product performance, environmental impact, or compliance. Confirm technical values and local requirements against current standards before production use. |
| Practical access | ||||
| For | Apparel brands | Makers | Makers | Both |
| Location or jurisdiction | Global | Global | European Union | Global |
| Access | Open access | Open access | Open access | Free account |
| Format | Reference | Stitch Authority | Directory | Reference |
| Source type | Industry organization | Stitch Authority | Community database | Industry organization |
| Source and review | ||||
| What the source establishes | ZDHC'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's help centre identifies version 3.1 as the current official MRSL and distinguishes it from restrictions measured in finished products. | The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred. | The individually researched database offers free listings and sortable yarn, fibre, designer, editor, accessory, and location views; the EU page spans multiple countries and direct seller profiles. | The current Woolmark Learning Centre library publishes free account-based coursework with module counts, completion times, progress tracking, knowledge checks, and supporting resources. Its wool programs cover fibre science, raw-wool and yarn processing, dyeing and finishing, woven textiles, knitwear, product quality, and wastewater management for learners and facilitators. |
| Linked page reviewed | Jul 21, 2026 | Jul 16, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Next review due | Oct 19, 2026 | Jul 16, 2027 | Jan 11, 2027 | Jan 17, 2027 |
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