ASTM F689-97

Standard Practice for Determination of the Temperature of Above-Ground Plastic Gas Pressure Pipe Within Metallic Casings

SCOPE
1.1 This practice describes a procedure for the determination of the temperature history of above-ground plastic gas pressure pipe encased in a metallic casing. Such temperature changes may be due to ambient air temperature, or solar exposure, or both.  
1.2 This standard does not purport to address all of the safety problems, 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.

General Information

• Status: Historical
• Publication Date: 09-Oct-1997
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.60 - Gas

Relations

• Replaced By: ASTM F689-97(2004) - Standard Practice for Determination of the Temperature of Above-Ground Plastic Gas Pressure Pipe Within Metallic Casings
• Effective Date: 01-Nov-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: F 689 – 97
Standard Practice for
Determination of the Temperature of Above-Ground Plastic
Gas Pressure Pipe Within Metallic Casings
This standard is issued under the fixed designation F 689; 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.
1. Scope 4. Significance and Use
1.1 This practice describes a procedure for the determina- 4.1 This practice provides a procedure for determining the
tion of the temperature history of above-ground plastic gas temperature history of plastic gas pressure pipe encased in
pressure pipe encased in a metallic casing. Such temperature metallic casings.
changes may be due to ambient air temperature, or solar 4.2 The data obtained are indicative of the temperature
exposure, or both. attainable within a service riser of a specific design and size in
1.2 This standard does not purport to address all of the a given geographical location under the climatogical conditions
safety problems, if any, associated with its use. It is the in existence during the test period.
responsibility of the user of this standard to establish appro- 4.3 The data obtained can be used within the constraints of
priate safety and health practices and determine the applica- 4.2 to design the maximum allowable operating pressures
bility of regulatory limitations prior to use. permitted by existing codes.
2. Referenced Documents 5. Apparatus
2.1 ASTM Standards: 5.1 Four-Channel Continuous Chart Thermocouple Re-
D 2513 Specification for Thermoplastic Gas Pressure Pipe, corder.
Tubing, and Fittings 5.2 Thermocouple Probes.
E 220 Method for Calibration of Thermocouples by Com- 5.3 Solar Load Panel, 12 by 20 by 0.032 in. (300 by 500 by
parison Techniques 0.8 mm), steel, painted flat black with an insulated thermo-
2.2 Other Document: couple attached to the underside.
Thermoplastic Fuel Gas Piping/Investigation of Maximum 5.4 Ambient Thermocouple Apparatus, consisting of a well-
Temperatures Attained by Plastic Pipe Inside Metal Ser- ventilated, shaded housing containing a thermocouple for
vice Risers, TR 30, Plastic Pipe Institute, May 1978 monitoring ambient air temperature (see Fig. 1).
3. Terminology 6. Test Specimens
3.1 Definitions: 6.1 The riser may be either preassembled or fabricated in
3.1.1 Anodeless riser—A type of transition fitting that is accordance with written procedures.
designed to transport gas from an underground polyethylene 6.2 The outlet from the specimen defined by 6.1 shall be
service line to above-ground steel piping. In an anodeless riser capped to simulate no-flow (stagnant) conditions.
polyethylene pipe is always the gas carrier, at least, in the 6.3 The riser shall be fitted with a bare junction type “J” or
below ground section. “K” thermocouple probe 20–30 AWG that shall be installed 3
3.1.2 plastic gas pipe—an approved gas carrier that com- in. below the internal transition on the polyethylene pipe. The
plies with Specification D 2513. probe tip shall be embedded into the outer surface of the
polyethylene pipe by using a soldering iron. The thermocouple
wiring shall follow the piping and exit out the horizontal
This practice is under the jurisdiction of ASTM Committee F-17 on Plastic
portion of the riser (see Fig. 2).
Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.
6.4 At least two specimens shall be used at each test site.
Current edition approved Oct. 10, 1997. Published August 1998. Originally
e1
published as F689-80. Last previous edition F689-80(90) .
Annual Book of ASTM Standards, Vol 08.
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