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An analysis of autoignition temperature round robin test data

  • Autoignition temperature (AIT) round robin tests were conducted by seven laboratories on eight polymeric materials. A statistical analysis was conducted that focused on investigating data variability both within and between test methods. With some exceptions, the methods ranked the materials consistently and as expected from their chemical makeup. There was no consistent difference between AIT values determined at 6.9 and 10.3 MPa. BAM and ASTM G72 consistently provided lower, more conservative AITs at both 6.9 and 10.3 MPa. Within an estimated accuracy obtained from all methods from this round robin, data from the following methods appeared to be more accurate than the rest: NF E 29763/88 and Parr Bomb at 6.9 MPa; automated ASTM G72 at 10.3 MPa. The following methods provided lower within-method variability than the average for all methods: BS 3N 100 and ASTM G72 at 6.9 and 10.3 MPa; Parr Bomb at 6.9 MPa. At 6.9 MPa the BAM method provided data with greater within-method variabilityAutoignition temperature (AIT) round robin tests were conducted by seven laboratories on eight polymeric materials. A statistical analysis was conducted that focused on investigating data variability both within and between test methods. With some exceptions, the methods ranked the materials consistently and as expected from their chemical makeup. There was no consistent difference between AIT values determined at 6.9 and 10.3 MPa. BAM and ASTM G72 consistently provided lower, more conservative AITs at both 6.9 and 10.3 MPa. Within an estimated accuracy obtained from all methods from this round robin, data from the following methods appeared to be more accurate than the rest: NF E 29763/88 and Parr Bomb at 6.9 MPa; automated ASTM G72 at 10.3 MPa. The following methods provided lower within-method variability than the average for all methods: BS 3N 100 and ASTM G72 at 6.9 and 10.3 MPa; Parr Bomb at 6.9 MPa. At 6.9 MPa the BAM method provided data with greater within-method variability than the average for all methods. For most materials, the automated ASTM G72 method at 10.3 MPa provided data with greater within-method variability than the average for all methods. Two data points for this method, Zytel? and Teflon? FEP, exceeded critical . At 6.9 MPa, the largest within-method variability resulted from NF E 29763/88 on Zytel, the only data that exceeded critical . Two extreme results were caused by significant effects of method-specific test parameters: BAM on Zytel at 6.9 MPa and BS 3N 100 on Viton? at 10.3 MPa. Statistically these results had a probability of less than 5 percent of occurring by chance.zeige mehrzeige weniger

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Metadaten
Autor*innen:D. Hirsch, C. Bryan, H. Barthélémy, T. Chou, Christian Binder
Persönliche Herausgeber*innen:T. Steinberg
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Flammability and sensitivity of materials in oxygen-enriched atmospheres - 9th volume
Jahr der Erstveröffentlichung:2000
Herausgeber (Institution):American Society for Testing and Materials / Committee on Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
Verlag:ASTM
Verlagsort:West Conshohocken, Pa.
Jahrgang/Band:9
Ausgabe/Heft:1395
Veranstaltung:9th International Symposium on Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres
Veranstaltungsort:Paris, France
Beginndatum der Veranstaltung:2000-09-01
DOI:10.1520/STP12514S
ISSN:0066-0558
ISBN:0-8031-2871-1
Bemerkung:
Serientitel: ASTM STP – Series title: ASTM STP
Verfügbarkeit des Dokuments:Weder Datei noch physisches Exemplar vorhanden ("No Access")
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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