ASTM-D645/D645M 2002

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D645/D645M-97(2002) Standard Test Method for Thickness of Paper and Paperboard

Published By	Publication Date	Number of Pages
ASTM	2002	3

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Category: ASTM

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Description

ASTM D645/D645M-97-Reapproved2002

Historical Standard: Standard Test Method for Thickness of Paper and Paperboard

ASTM D645/D645M

Scope

1.1 This test method covers the determination of the thickness of paper and paperboard except electrical insulating papers (see Methods D 202).

1.1.1 Because of the relatively high pressure 50 kPa [7.3 psi] used in this test method, it may not be suitable for measurement of tissue or other soft or low density materials, because the structure may collapse (decrease in thickness) at the prescribed pressure of 50 kPa.

1.2 The values stated in either SI units or in other units shall be regarded seperately as the standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.

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.

Keywords

caliper paper; paperboard; thickness

ICS Code

ICS Number Code 85.060 (Paper and board)

DOI: 10.1520/D0645_D0645M-97R02

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Significance and Use Apparatus
2	Test Specimens Calibration Conditioning Procedure Report Precision and Bias
3	Keywords X1. MANUALLY OPERATED MICROMETER X1.1 X1.2 X1.3 X1.4 X2. DIFFERENCES BETWEEN ISO 534 AND TEST METHOD D 645 X2.1