Test report forgery: difference between revisions
Diff·revision 9 → 10·20:13, 12 Jan 2025
Difference between revision 9 and revision 10 of Test report forgery. 9 lines changed; the page grew by 700 bytes.
| Revision 9 — 15:20, 26 Dec 2024 StubSorterBot (talk) bot: update parent category chain 2,909 bytes ±0 | Revision 10 — 20:13, 12 Jan 2025 NAION_Noel (talk) add the turnaround time the service publishes 3,609 bytes +700 | ||
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| 24 | Fabrication and alteration are detectable in principle by asking the named laboratory whether it issued the report. Whether that is possible depends on the laboratory's practice; some issue reports with a verifiable reference and some do not. A report that cannot be checked with its issuer is not thereby forged — most are not — but it is unconfirmable.{{r|iso17025}} | 24 | Fabrication and alteration are detectable in principle by asking the named laboratory whether it issued the report. Whether that is possible depends on the laboratory's practice; some issue reports with a verifiable reference and some do not. A report that cannot be checked with its issuer is not thereby forged — most are not — but it is unconfirmable.{{r|iso17025}} |
| 25 | 25 | ||
| + | 26 | == Internal signals == | |
| + | 27 | Some fabrications are visibly defective, and the defects are usually arithmetic or procedural rather than typographic. | |
| + | 28 | ||
| + | 29 | * Dates out of order: testing before manufacture, release before testing, retest before release. | |
| + | 30 | * A stated method incapable of producing a reported determination — a purity figure attributed to a method that does not separate, or a water figure attributed to a method that does not measure water. | |
| + | 31 | * Determinations reported to more significant figures than the method supports. | |
| + | 32 | * Related-substance figures that do not sum consistently with the reported main-peak area. | |
| + | 33 | * A chromatogram whose visible integration does not correspond to the stated figure. | |
| + | 34 | ||
| 26 | == References == | 35 | == References == |
| 27 | {{reflist}} | 36 | {{reflist}} |