ASTM International - ASTM D724-99

Standard Test Method for Surface Wettability of Paper (Angle-of-Contact Method)

historical
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Organization: ASTM International
Publication Date: 10 February 1999
Status: historical
Page Count: 4
ICS Code (Paper and board): 85.060
scope:

1.1 This test method covers the quantitative determination of the resistance of paper surfaces to wetting by measuring the behavior of a drop of liquid when applied directly to the paper surface.

1.2 The procedure described in this test method involves the measurement of the angle of contact. Both the initial wettability and the rate of change of wettability may be measured.

1.3 When using a standard ink, the initial contact angle or wettability is considered to be a measure of the ruling quality of the paper. The rate of change of contact angle or wettability is considered to be a measure of the writing quality.

1.4 Other liquids, both aqueous and nonaqueous, may be used with this technique in special applications. Modification of the procedure may be required when using liquids other than the standard ink described.

1.5 Two types of apparatus for measuring the contact angle are described. Additional apparatus that can perform the test may also provide equivalent results.

1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.7 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.

Document History

February 10, 1999
Standard Test Method for Surface Wettability of Paper (Angle-of-Contact Method) (Withdrawn 2009)
1.1 This test method measures the angle of contact when a drop of liquid is applied to the surface of a specimen of paper. 1.2 The measurement of both the initial angle of contact and the angle of...
ASTM D724-99
February 10, 1999
Standard Test Method for Surface Wettability of Paper (Angle-of-Contact Method)
1.1 This test method covers the quantitative determination of the resistance of paper surfaces to wetting by measuring the behavior of a drop of liquid when applied directly to the paper surface....
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