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ASTM F598-00(2004)

ASTM F598-00(2004)

Standard Practice for Determining the Resistance of Carbonless Papers to Capsular Damage

2010-12-31 /Historical
Superseeded by:
Significance and Use:

The primary purpose of these tests is to obtain information from a statistical sampling of a lot or shipment of paper that will predict how well the whole lot will resist capsular damage from normal handling processes, either in manufacturing or in subsequent processing, storage, and use.

Other aspects of significance are covered in 1.2.


1.1 The test procedures of this practice are applicable to any carbonless paper product that employs a coating of micro-capsules bonded to one side of the paper wherein the active material within the capsules is a colorless reactant capable of generating color when the capsules are broken and the contained solution is simultaneously transferred to a reactive receptor surface capable of changing the chemical from a colorless to a colored condition.

1.2 The procedures are designed to demonstrate the extent of damage incurred by (1) controlling the rate of slippage of test units held in contact with each other under a calibrated weight and (2) by the controlled application of pressure to test units held stationary with respect to each other.

1.2.1 The first test procedure is designed to demonstrate the resistance to capsular damage related to plies slipping under pressure.

1.2.2 The second test procedure is designed to demonstrate the resistance to capsular damage related only to pressure, such as between plies within rolls, between sheets in a stack or due to nip effects in web processing, converting, or end-use equipment.

1.3 This standard does not purport to address the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use .

carbonless copy paper; carbonless paper; capsule damage; CB; microcapsules
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