ASTM-D3295 Standard Specification for PTFE Tubing, Miniature Beading and Spiral Cut Tubing

ASTM-D3295 - 2020 EDITION - CURRENT
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This specification covers PTFE tubing, miniature beading and spiral cut tubing-manufactured from PTFE resin produced from dispersion. Five groups of PTFE tubing, miniature beading and spiral cut tubing, differentiated by size and type are presented. The groups are further subdivided into classes based on wall thickness: group 01 - tubing based upon the AWG sizes, group 02 - tubing based upon fractional inch sizes, group 03 - tubing based upon inner diameter and wall thickness, group 04 - tubing cut to form spiral wrap, and group 05 - miniature beading. The types are further differentiated in accordance with increasing wall thickness as follows: class 1 - light wall, class 2 - thin wall, class 3 - standard wall, class 4 - chemical tubing, and class 5 - heavy wall. The tubing and miniature beading shall be made of PTFE meeting the requirements prescribed. The melting point, specific gravity, weight loss, tensile strength, elongation, dielectric breakdown voltage, heat resistance, and dimensional stability shall be tested to meet the requirements specified.

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Scope

1.1 This specification covers PTFE tubing, miniature beading and spiral cut tubing-manufactured from PTFE resin produced from dispersion specified in Specification D4895.

Note 1: PTFE tube and rod manufactured from resin specified in Specification D4894 are covered in Specification D1710.

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

1.3 The following hazard caveat pertains only to the test method portion, Section 8, of this specification: 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 As PTFE resin produced from dispersion is not a true thermoplastic material, any reuse for the specification referenced above is impossible. However, markets do exist for non-virgin PTFE as additives and fillers.

Note 2: This standard and ISO 13000-1/-2 address some of the same subject matter, but differ in technical content.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

coagulated dispersion PTFE; fluorocarbon polymer; fluoropolymers; miniature beading; polytetrafluoroethylene; PTFE; PTFE extruded tubing; spiral cut tubing; thin-walled tubing;

To find similar documents by ASTM Volume:

08.02 (Plastics (II): D3222 - D5083)

To find similar documents by classification:

23.040.20 (Plastics pipes)

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Document Number

ASTM-D3295-20

Revision Level

2020 EDITION

Status

Current

Modification Type

Revision

Publication Date

Jan. 7, 2021

Document Type

Specification

Page Count

7 pages

Committee Number

D20.15