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| Decision field | Open accessMaterial Sourcing RequestGlobalRemove | Open accessHook & Needle Diameter ReferenceGlobalRemove | Free + paidPattern TestersGlobalRemove | Open accessFabric Mass Unit ConverterGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Choose materials | Learn techniques | Find patterns & fit | Choose materials |
| Area | Materials | Yarn | Patterns & fit | Materials |
| Best for | Requesting comparable fabric, trim, or component offers | Checking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge | Coordinating an independent sewing-pattern test | Translating the same fabric mass-per-area result between metric and U.S. customary listings |
| Know before using | The request does not set product-specific pass values, prove fitness or safety, validate claims, replace laboratory testing, or determine legal compliance. | 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. | 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. | The result is a numerical unit conversion, not a new measurement or conformance decision; it does not establish sample or lot representativeness, significant digits, drape, warmth, opacity, thickness, stretch, strength, shrinkage, durability, sewability, end use, target, or tolerance. |
| Practical access | ||||
| For | Apparel brands | Makers | Apparel brands | Both |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Open access | Free + paid | Open access |
| Format | Stitch Authority | Stitch Authority | Software | Stitch Authority |
| Source type | Stitch Authority | Stitch Authority | First-party platform | Stitch Authority |
| Source and review | ||||
| What the source establishes | The request uses official textile test-method scopes, labeling guidance, and trade capability questions to keep specifications, methods, samples, substitutions, and supplier evidence comparable. | 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. | 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. | The calculator uses the NIST SP 811 Appendix B.8 conversion from avoirdupois ounces per square yard to kilograms per square metre and links to a source-reviewed fabric mass record for method, sampling, conditioning, and product controls. |
| Linked page reviewed | Jul 15, 2026 | Jul 16, 2026 | Jul 21, 2026 | Jul 16, 2026 |
| Next review due | Jul 15, 2027 | Jul 16, 2027 | Jan 17, 2027 | Jul 16, 2027 |
| Inspect | ||||
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