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| Decision field | Open accessGOTS Certified SuppliersGlobalRemove | Free accountWoolmark Learning CentreGlobalRemove | Open accessHook & Needle Diameter ReferenceGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Check standards | Learn techniques | Learn techniques |
| Area | Materials | Techniques & repair | Yarn |
| Best for | Checking GOTS certification records | Structured wool education | Checking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge |
| Know before using | A company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase. | 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. | 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. |
| Practical access | |||
| For | Apparel brands | Both | Makers |
| Location or jurisdiction | Global | Global | Global |
| Access | Open access | Free account | Open access |
| Format | Directory | Reference | Stitch Authority |
| Source type | Official registry | Industry organization | Stitch Authority |
| Source and review | |||
| What the source establishes | The official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes. | 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. | 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. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 16, 2026 |
| Next review due | Oct 13, 2026 | Jan 17, 2027 | Jul 16, 2027 |
| Inspect | |||
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