ASTM C662-16(2021)

Standard Specification for Impervious Graphite Pipe and Threading

ABSTRACT
This specification covers standardization of pipe sizes and thread types used to join impervious graphite pipe and fittings. This specification may also be applied to impervious carbon pipe and fittings. Physical dimensions of impervious graphite and carbon pipes and threads shall be within the limits indicated in this specification.
SCOPE
1.1 This specification covers the standardization of the pipe sizes and types of threads used to join impervious graphite pipe and fittings. The thread standards may also be applied to impervious carbon pipe and fittings. It is limited to physical dimensions.  
1.2 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.

General Information

• Status: Published
• Publication Date: 30-Sep-2021
• ICS: 23.040.50 - Pipes and fittings of other materials
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.F0 - Manufactured Carbon and Graphite Products

Standards Content (Sample)

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.
Designation: C662 −16 (Reapproved 2021)
Standard Specification for
1
Impervious Graphite Pipe and Threading
This standard is issued under the fixed designation C662; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.1.1 impervious carbon, n—manufactured non-graphitized
structural carbon that has been impregnated with a resinous
1.1 This specification covers the standardization of the pipe
material to make the final article impervious to liquids in the
sizes and types of threads used to join impervious graphite pipe
recommended operating range.
and fittings. The thread standards may also be applied to
2.1.2 impervious graphite, n—manufactured graphite that
impervious carbon pipe and fittings. It is limited to physical
has been impregnated with a resinous material to make the final
dimensions.
article impervious to liquids in the recommended operating
1.2 This international standard was developed in accor-
range.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3. Requirements for Impervious Graphite Pipe
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 3.1 The eight standard pipe sizes are shown in Table 1 with
Barriers to Trade (TBT) Committee. permissible variations in dimensions.
3.2 Fig. 1 gives the male thread dimensions for impervious
2. Terminology
graphite pipe.
2.1 Definitions:
3.3 Fig. 2 gives the female thread dimensions for impervi-
ous graphite fittings.
1
This specification is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.F0 on Manufactured Carbon and Graphite Products. 4. Keywords
Current edition approved Oct. 1, 2021. Published November 2021. Originally
4.1 impervious carbon pipe; impervious graphite pipe;
approved in 1970. Last previous edition approved in 2016 as C662 – 16. DOI:
10.1520/C0662-16R21. threading specifications
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C662 − 16 (2021)
TABLE 1 Physical Dimensions of Impervious Graphite Pipe
Pipe Size Typical Limits
A
Length
(nominal
Inside Diameter Outside Diameter
Inside
min max min max in. mm
Diameter),
1
+ ⁄4 −0 +60 −0
in.
in. mm in. mm in. mm in. mm
15 1 31 9
1 ⁄16 23.8 1 ⁄16 27.0 1 ⁄64 37.7 1 ⁄16 39.7 108 2740.
1 7 9 61 1
1 ⁄2 1 ⁄16 36.5 1 ⁄16 39.7 1 ⁄64 49.6 2 ⁄16 52.4 108 2740.
15 1 11 13
21 ⁄16 49.2 2 ⁄16 52.4 2 ⁄16 68.3 2 ⁄16 71.4 108 2740.
15 1 3
32 ⁄16 74.6 3 ⁄4 82.6 4 101.6 4 ⁄16 106.4 108 2740.
15 1 1 1
43 ⁄16 100.0 4 ⁄4 108.0 5
...