ASTM C600-85(2015)

Standard Test Method of Thermal Shock Test on Glass Pipe (Withdrawn 2019)

SIGNIFICANCE AND USE
3.1 This test method provides a practical means of assessing glass pipe strength under short-duration, thermally-imposed tensile stresses. In addition to a principal role played by the linear coefficient of thermal expansion, glass surface defects can also be major factors in reducing downshock performance.
SCOPE
1.1 Since thermal shock resistance is so closely related to the linear coefficient of expansion, this test method for the determination of the thermal shock resistance of glass process pipe is primarily intended to supplement test results on the linear coefficient of expansion, Test Method E228. This thermal shock test will not ordinarily be performed except in those cases where the thermal shock resistance may be questioned.  
1.2 This test method covers only two of four thermal shock possible approaches, namely independent downshock of outside and inside pipe surfaces. Downshock is more severe since a higher tensile stress is produced and, hence, more likely to produce failure.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 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.
WITHDRAWN RATIONALE
Since thermal shock resistance is so closely related to the linear coefficient of expansion, this test method for the determination of the thermal shock resistance of glass process pipe is primarily intended to supplement test results on the linear coefficient of expansion, Test Method E228. This thermal shock test will not ordinarily be performed except in those cases where the thermal shock resistance may be questioned.
Formerly under the jurisdiction of Committee C14 on Glass and Glass Products, this test method was withdrawn in November 2019. This standard is being withdrawn without replacement due to its limited use by industry.

General Information

• Status: Withdrawn
• Publication Date: 31-Oct-2015
• Withdrawal Date: 05-Nov-2019
• ICS: 23.040.50 - Pipes and fittings of other materials
• Technical Committee: C14 - Glass and Glass Products

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
Designation: C600 − 85 (Reapproved 2015)
Standard Test Method of
1
Thermal Shock Test on Glass Pipe
This standard is issued under the fixed designation C600; 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 linear coefficient of thermal expansion, glass surface defects
can also be major factors in reducing downshock performance.
1.1 Since thermal shock resistance is so closely related to
the linear coefficient of expansion, this test method for the
4. Apparatus
determination of the thermal shock resistance of glass process
4.1 Oven, equipped with a device to maintain the tempera-
pipe is primarily intended to supplement test results on the
ture with 65°F (63°C) of the specified temperature. An
linear coefficient of expansion, Test Method E228. This ther-
indicating controller is recommended. Otherwise, a dial ther-
mal shock test will not ordinarily be performed except in those
mometer should be attached and the temperature controlled
cases where the thermal shock resistance may be questioned.
manually.
1.2 This test method covers only two of four thermal shock
4.2 Water Tank, at least 18 in. (457 mm) deep with a width
possible approaches, namely independent downshock of out-
and length sufficient to accommodate the samples to be tested.
side and inside pipe surfaces. Downshock is more severe since
The tank shall be filled with ice water to a depth of at least 12
a higher tensile stress is produced and, hence, more likely to
in. (305 mm). The water temperature shall be maintained at 34
produce failure.
6 2°F (1 6 1°C).
1.3 The values stated in inch-pound units are to be regarded
4.3 Timer, capable of measuring seconds.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
5. Sampling
and are not considered standard.
5.1 Arandomsamplingof1 %(butnotlessthantwopieces)
1.4 This standard does not purport to address all of the
of pipe and fittings shall be made.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Procedure
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 6.1 Set the oven at the proper temperature, in degrees
Fahrenheit, determined as follows:
2. Referenced Documents
T 5 3211.25 '∆T (1)
~ !
oven recommended
2
2.1 ASTM Standards:
6.2 Thermal Shock Test—Outside Surface—Close off all
E228 Test Method for Linear Thermal Expansion of Solid
open ends of sample; use glass pipe caps or flat metal plates,
Materials With a Push-Rod Dilatometer
plus the necessary flanges, gaskets, inserts, nuts, and bolts.
Keep the closed sample in the oven, at temperature, for at least
3. Significance and Use
30 min. Completely submerge the sample in the tank of ice
3.1 This test method provides a practical means of assessing water for 30 s. Keep the time elapsed between removing the
glass pipe strength under short-duration, thermally-imposed sample from the oven and submerging it in ice water not less
than 15 s, nor more than 45 s. Inspect each sample for
tensile stresses. In addition to a principal role played by the
indications of failure.
6.3 Thermal Shock Test—Inside Surface—Close off all open
1
This test method is under the jurisdiction of ASTM Committee C14 on Glass
ends
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