ASTM C1639-07

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C1639 – 07
Standard Specification for
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Fabrication Of Cellular Glass Pipe And Tubing Insulation
This standard is issued under the fixed designation C1639; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.2 Definitions of Terms Specific to This Standard:
3.3 billet / bun— a single piece of insulation made up from
1.1 This specification covers fabrication techniques for
a number of smaller blocks held together with an adhesive.
cellular glass block into billets to fabricate pipe and tubing
3.4 lags—pieces of insulation typically curved or tapered
insulation. All materials shall be in accordance with Specifi-
used for insulating pipes, tanks and other cylindrical equip-
cation C552.
ment.
1.2 The purpose of this specification is to optimize the
3.5 precision cut V-grooved pipe insulation , n—rigid insu-
thermal performance of installed cellular glass insulation
lationpiecescutinto4-sidedpolygons,oftwoparallelsurfaces
systems.Thisisbestachievedbylimitingthenumberofjoints,
and two non-parallel surfaces of equal angles = 180° / N, such
in particular through joints.
thatwhen Nnumberofthesesectionsareassembled,theyform
1.3 The values stated in inch-pound units are to be regarded
an approximate circle and can be installed around a pipe.
as the standard. The values given in the parentheses are
3.5.1 Discussion—the adjective precision refers to the fact
provided for information only.
that when these N sections are installed onto a pipe, they fit
1.4 This standard does not purport to address all of the
exactly with no appreciable gaps between sections.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Classification
priate safety and health practices and determine the applica-
4.1 SpecificationC552definesTypeIandTypeIImaterials.
bility of regulatory limitations prior to use.
The same classifications shall be used in this standard.
2. Referenced Documents
5. Workmanship, Finish, and Appearance
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2.1 ASTM Standards:
5.1 The insulation shall have no visible defects that will
C168 Terminology Relating to Thermal Insulation
adversely affect its performance.
C450 Practice for Fabrication of Thermal Insulating Fitting
Covers for NPS Piping, and Vessel Lagging
6. Standard Sizes, Dimensions, and Fabrication
C552 Specification for Cellular Glass Thermal Insulation
Configurations of Cellular Glass Pipe and Tubing
C585 Practice for Inner and Outer Diameters of Thermal
Insulation
Insulation for Nominal Sizes of Pipe and Tubing
6.1 Cellular glass pipe and tubing insulation shall be
D312 Specification for Asphalt Used in Roofing
fabricated in lengths as agreed to by the purchaser and the
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2.2 ASTM Adjuncts:
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supplier. Typical lengths are 23 ⁄2-in. (597mm), 24 in. (610
ADJC0450A ASTMRecommendedDimensionalStandards
mm), or 36 in. (914 mm).
for Fabrication of Thermal Insulation Fitting Covers
6.2 CellularglasspipeandtubinginsulationforNPS4(102
mm)andsmallerpipeshallbemadetoaminimumthicknessof
3. Terminology
1-in. (25 mm). Pipe insulation for pipes larger than 4 in. NPS
3.1 Terminology C168 shall be considered as applying to
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(102 mm) shall be made to a minimum 1 ⁄2-in. (38 mm)
the terms in this specification.
thickness. Sizes shall conform to Practice C585.Aminimum 2
in. (51 mm) thickness should be used for pipe sizes larger than
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This specification is under the jurisdiction of ASTM Committee C16 on
12 in. NPS (324 mm).
Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on
6.3 Cellular glass pipe insulation must be provided in half
Insulation Systems.
Current edition approved April 1, 2007. Published May 2007. DOI: 10.1520/
sections for up to and including 12 in. NPS (324 mm). Half
C1639-07.
sections shall consist of hollow cylindrical sections split
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
lengthwise in a plane that includes the cylindrical axis.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on 6.4 Cellular glass pipe insulation for pipe sizes 14 in. (356
the ASTM website.
mm) to 24 in. NPS (406 mm) must be fabricated in half-
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Available from ASTM International Headquarters. Order Adjunct No.
sections or in quarter-sections. At 26 in. NPS (660 mm) and
ADJC0450A.
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C1639 – 07
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