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| Decision field | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove | Free downloadAFIRM Restricted Substances ListGlobalRemove |
|---|---|---|
| Decision fit | ||
| Primary job | Learn techniques | Check standards |
| Also useful for | No additional job recorded | No additional job recorded |
| Area | Yarn | Standards |
| Best for | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge | Building a product chemical-restriction baseline |
| Know before using | 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. | AFIRM states that its list is guidance, not legal advice, an industry standard of care, or a guarantee of completeness or brand acceptance. It does not replace current law, a customer's stricter RSL, manufacturing-input controls, a product-specific risk and sampling plan, accepted laboratory methods, supplier controls, or performance and safety testing. |
| Practical access | ||
| For | Makers | Apparel brands |
| Location or jurisdiction | Global | Global |
| Access | Open access | Free download |
| Format | Stitch Authority | Reference |
| Source type | Stitch Authority | Industry organization |
| Source and review | ||
| What the source establishes | 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. | AFIRM publishes a 2026 multilingual Restricted Substances List for chemicals in finished apparel, footwear, accessories, and related materials, with a material-specific testing matrix. Its FAQ says the list does not cover product-performance testing, distinguishes the finished-product RSL from manufacturing-input lists, and tells suppliers to check each customer's brand-specific requirements and testing acceptance. |
| Linked page reviewed | Jul 28, 2026 | Jul 21, 2026 |
| Next review due | Jul 28, 2027 | Oct 19, 2026 |
| Inspect | ||
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