1.3 This specification covers rod and heavy-walled tubing made wholly from polytetrafluoroethylene and produced in accordance with good commercial practice.

1.4 The properties included in this specification are those required for the compositions covered. Requirements necessary to identify particular characteristics important to specialized applications may be described by using the classification system given in Section 4.

1.5 This specification allows for the use of recycled plastics as defined in Guide D 5033.

1.6 The values stated in inch-pound units are to be regarded as the standard in all property and dimensional tables.

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 to determine the applicability of regulatory limitations prior to use.

Note 1-There are similar ISO standards, such as ISO 13000-1 and 13000-2.