ASTM-D2657 Standard Practice for Heat Fusion Joining of Polyolefin Pipe and Fittings

ASTM-D2657 - 2007 R15 EDITION - CURRENT
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Standard Practice for Heat Fusion Joining of Polyolefin Pipe and Fittings
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Scope

1.1 This practice describes general procedures for making joints with polyolefin pipe and fittings (excluding polyethylene pipe and fittings) by means of heat fusion joining techniques in either a shop or field environment. These procedures are general ones. Specific instructions for heat fusion joining are obtained from product manufacturers. See Practice F2620 for heat fusion joining of polyethylene pipe and fittings.

1.2 The techniques covered are applicable only to joining polyolefin pipe and fittings of related polymer chemistry, for example, polypropylenes to polypropylenes, or polybutylenes to polybutylenes. Material, density, and flow rate shall be taken into consideration in order to develop uniform melt viscosities and formation of a good fusion bond when joining the same material to itself or to other materials of related polymer chemistry.

1.3 Parts that are within the dimensional tolerances given in present ASTM specifications are required to produce sound joints between polyolefin pipe and fittings when using the joining techniques described in this practice.

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

1.5 The text of this practice references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the practice.

1.6 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. See specific safety precautions in 3.1.1, 5.2, 8.2.3.1, Note 8 and Note 9, and A1.1.

Keywords

butt fusion; fitting; heat fusion; joining; pipe; polybutylene; polyolefin; polypropylene; saddle fusion; socket fusion ;; ICS Number Code 25.160.40 (Welding joints and welds)

To find similar documents by ASTM Volume:

08.04 (Plastic Piping Systems)

To find similar documents by classification:

25.160.40 (Welded joints and welds Including welding position and mechanical and non-destructive testing of welded joints)

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Document Number

ASTM-D2657-07(2015)

Revision Level

2007 R15 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Dec. 15, 2015

Document Type

Practice

Page Count

7 pages

Committee Number

F17.20