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| Decision field | Open accessConstruction Classification & Callout Verification RecordGlobalRemove | Open accessFreeSewingGlobalRemove | Open accessNMSU Pattern Alteration GuideUnited States · North AmericaRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Source production | Find patterns & fit | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Production | Patterns & fit | Patterns & fit |
| Best for | Using construction codes without treating classification as a machine setting, material assignment, supplier translation, or performance guarantee | Custom-fit home sewing patterns | Checking a common flat-pattern alteration method |
| Know before using | The record does not reproduce licensed code diagrams, verify a user's proposed code, authorize an ISO and ASTM crosswalk, select a construction, set stitch density or machine settings, prove supplier repeatability or performance, or replace the licensed standards and qualified construction, sewing, production, testing, safety, and quality review. | A generated pattern is not independent fit evidence or a production-ready graded block. The result still depends on accurate measurements, the selected design and options, ease assumptions, fabric behavior, construction, and representative test garments. An account stores saved patterns and measurement sets, so review the platform's privacy terms before retaining personal measurements. | The guide's general womenswear diagrams and ease ranges are teaching examples, not an individual diagnosis, current commercial-pattern specification, or complete fitting course. A named symptom can have several causes, and alterations may affect adjoining seams, facings, collars, sleeves, balance, and style. Verify the method against the exact pattern and test the coordinated changes on a muslin. |
| Practical access | |||
| For | Apparel brands | Makers | Makers |
| Location or jurisdiction | Global | Global | United States · North America |
| Access | Open access | Open access | Open access |
| Format | Stitch Authority | Software | Reference |
| Source type | Stitch Authority | Open-source project | Government guidance |
| Source and review | |||
| What the source establishes | The guide cites the official DLA cancellation record for FED-STD-751A and the current public scopes and statuses of ISO 4915:1991, ISO 4916:1991, and ASTM D6193-16(2025). It records ISO 4915's July 2026 systematic review and keeps classification, ambiguous-code recovery, translation, complete process definition, physical verification, and performance evidence separate. | FreeSewing's official documentation says the browser editor drafts a selected design in real time from a measurement set rather than scaling or grading a standard-size pattern. Users can adjust design options and export the generated result, including as PDF; saving the pattern to an account is optional and is used to revisit it later. | New Mexico State University's current Cooperative Extension Guide C-228 explains three alteration methods, folding out fullness, slashing and spreading or overlapping, and redrawing darts or seams. It provides illustrated bodice, sleeve, skirt, and trouser examples and tells readers to compare body measurements plus intended ease with the pattern while preserving grain, design lines, related-piece changes, and comfort ease. |
| Linked page reviewed | Jul 28, 2026 | Jul 21, 2026 | Jul 21, 2026 |
| Next review due | Jul 28, 2027 | Jan 17, 2027 | Oct 19, 2026 |
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