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Standard Test Method for Machine Direction of Paper and Paperboard
Automaticky preložený názov:
Štandardná skúšobná metóda pre strojovým smere z papiera a lepenky
NORMA vydaná dňa 10.12.1997
Označenie normy: ASTM D528-97
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.12.1997
Kód tovaru: NS-30567
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
Machine direction, Paper, Paperboard, machine direction of paper/paperboard
1. Scope | ||||||||||
1.1 This test method covers four procedures for determining the machine direction of most grades of paper and paperboard, embodying the principle that machine direction alignment of fibers results in: 1.1.1 Cross-direction shrinkage to produce curl with axis in machine direction, 1.1.2 Higher cross-direction tear, 1.1.3 Higher tensile strength in machine direction, and 1.1.4 Higher stiffness in machine direction. 1.2 Application of the procedures in this method to certain grades of paper, such as sheets laminated to film, creped papers, extensible papers (where it is not unusual for the machine direction tensile to be relatively low and the stretch to be relatively high) and papers reinforced with textile materials, may result in unreliable determinations. 1.3 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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2. Referenced Documents | ||||||||||
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