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Standard Practice for Determination of Character Yield of Inked Fabric Typewriter and Printer Ribbons (Withdrawn 2015)
Automaticky přeložený název:
Standardní praktiky pro stanovení charakteru výtěžku napuštěné Fabric psací stroj a pásky do tiskáren (Withdrawn 2015 )
NORMA vydána dne 1.7.2008
Označení normy: ASTM F92-93(2008)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.7.2008
Kód zboží: NS-56952
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
fabric ribbon, longevity, printer ribbon character yield, typewriter ribbon, typewriter ribbon character yield, wear of fabric ribbons, Character yield, Inked ribbons, Optical density, Optical materials/properties/tests--copy materials, Typewriter materials/applications, Wear testing--inked ribbons
Significance and Use | ||||||||||||||||
This practice is used to determine the number of useful impressions obtainable under normal operating conditions of a given typewriter or printer ribbon. It is suitable for service evaluation or research and development. This practice is generally not considered practical for manufacturing control specification acceptance because of the length of time required to obtain results. Interpretation of the test result is to be made on a comparative basis, not on the basis of absolute values. |
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1. Scope | ||||||||||||||||
1.1 This practice covers the determination of the usable image producing life of an inked fabric typewriter ribbon or an inked fabric printer ribbon expressed as the number of impressions obtainable from a given unit. 1.2 This practice is not applicable to one-time typewriter ribbons such as carbon ribbons. 1.3 This practice is suitable for narrow printer ribbons with a width of 2 in. (50.8 mm) or less. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 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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2. Referenced Documents | ||||||||||||||||
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