Standard Test Method for
Curling, Twisting, and Tubing on Unwind of PressureSensitive Tapes1

This standard is issued under the fixed designation D 3813/D 3813M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.

1. Scope

1.1 This test method provides one procedure for determining the extent of curling, the degree of twisting, and tendency
to form a tube resulting from unwinding of the tape from its
roll.

1.2 The values stated in either SI or inch-pound units are to
be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system
must be used independently, 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.

2. Referenced Documents

2.1 ASTM Standards:
D 996 Terminology of Packaging and Distribution Environments2
D 3715/D 3715M Practice for Quality Assurance of
Pressure-Sensitive Tapes2
D 4332 Practice for Conditioning Containers, Packages, or
Packaging Components for Testing2
E 122 Practice for Choice of Sample Size to Estimate a
Measure of Quality for a Lot or Process3

3. Terminology

3.1 Definitions—General terms used in this test method are
defined in Terminology D 996.

4. Summary of Test Method

4.1 The sample roll of tape is placed on a free-turning
spindle a specified distance above a horizontal plane. A strip of

Click below to download Astm D 3813D 3813M – 98 (Reapproved 2003) pdf free

[wpdm_package id=’25865′]

Click here to download Astm D 3811D 3811M – 96 (Reapproved 2001) Pdf Free Download