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| Decision field | Open accessFSC Certificate SearchGlobalRemove | Open accessYarn Database EU Dyers and MakersEuropean UnionRemove | Free + paidPattern TestersGlobalRemove | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Check standards | Choose materials | Find patterns & fit | Learn techniques |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Standards | Yarn | Patterns & fit | Yarn |
| Best for | Checking whether the exact supplier entity and relevant paper packaging, hangtag, or printed-material scope appear current before requesting order-specific evidence | Finding independent EU yarn or fibre dyers with off-Ravelry purchase routes | Coordinating an independent sewing-pattern test | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge |
| Know before using | A result establishes only the named record and stated scope and status at that time. It does not show that a particular package, hangtag, printed item, site, or order carries an FSC claim. Match the legal entity and relevant product scope, then check the claim on sales or delivery documents and any required label or trademark approval. | 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. | The interface and plan description do not prove tester reach, completion, feedback quality, fit validity, export quality, uptime, support, or suitability for an established release process. Measurements and photos can be sensitive personal data. Run a non-critical pilot, review the current privacy and service terms, define consent and photo rights, test exports and deletion, and keep pattern approval and release responsibility with the designer. | A shared nominal diameter does not make a knitting needle and crochet hook interchangeable or predict equal gauge or fabric. The reference is not a physical measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, or project approval. |
| Practical access | ||||
| For | Apparel brands | Makers | Apparel brands | Makers |
| Location or jurisdiction | Global | European Union | Global | Global |
| Access | Open access | Open access | Free + paid | Open access |
| Format | Directory | Directory | Software | Stitch Authority |
| Source type | Official registry | Community database | First-party platform | Stitch Authority |
| Source and review | ||||
| What the source establishes | FSC Search publishes current certification and licensing records, supports certificate type, certification body, status, and country or area criteria, includes certificate and licence codes on company records, and offers time-stamped FM and CoC record downloads. | 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. | Pattern Testers currently offers application intake, tester selection, feedback, photos, approvals, issue tracking, revisions, a reusable tester directory, and release deadlines. The public pricing page shows a limited free plan and paid Pro and Business tiers. Its June 2026 privacy policy lists names, email addresses, measurements, photos, feedback, application history, and assignments among the data processed. | Rechecked July 28, 2026. The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows, aligns hooks and needles only when their nominal millimetre value matches, and leaves missing rows or aliases unfilled. |
| Linked page reviewed | Jul 27, 2026 | Jul 15, 2026 | Jul 21, 2026 | Jul 28, 2026 |
| Next review due | Oct 25, 2026 | Jan 11, 2027 | Jan 17, 2027 | Jul 28, 2027 |
| Inspect | ||||
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