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ASTM D2923-13
Standard Test Method for Rigidity of Polyolefin Film and Sheeting (Withdrawn 2015)
Automaticky přeložený název:
Standardní zkušební metoda pro tuhost Polyolefin filmu a pažení
NORMA vydána dne 1.9.2013
Informace o normě:
Označení normy: ASTM D2923-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.9.2013
Kód zboží: NS-21977
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D2923-13 :
Keywords:
film, polyolefins, rigidity, sheet, ICS Number Code 83.140.10 (Films and sheets)
Doplňující informace
| Significance and Use | ||
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5.1 The rigidity of a polyolefin web can affect its machinability, particularly on those packaging machines where a cut portion of a web is required to remain flat momentarily without being supported on all sides. 5.2 Rigidity is not a simple property since it depends on other properties of the specimen: the thickness (gauge), orientation effects, and the stiffness which is an inherent property of the material of which the film or sheet is made. The combined effect of these factors is the rigidity that influences performance on converting machines. |
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| 1. Scope | ||
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1.1 This test method describes two procedures for measuring the rigidity of polyolefin film and sheeting. 1.2 Procedure A prescribes a procedure using high-voltage static eliminators and the use of TFE-fluorocarbon1.3 Procedure B prescribes the use of a fine powder on uncoated plates to achieve a similar effect. 1.4 The values stated in SI units
are to be regarded as standard. The values given in parentheses are
for information only.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standard Practice for Conditioning Plastics for Testing |
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