ASTM C1639-16

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C1639 −16
Standard Specification for
1
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. 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 3. Terminology
1.1 This specification covers fabrication techniques for
3.1 Terminology C168 shall be considered as applying to
cellular glass block into billets to fabricate pipe and tubing
the terms in this specification.
insulation. All materials shall be in accordance with Specifi-
3.2 Definitions of Terms Specific to This Standard:
cation C552.
3.2.1 billet / bun—a single piece of insulation made up from
1.2 The purpose of this specification is to optimize the
a number of smaller blocks held together with an adhesive.
thermal performance of installed cellular glass insulation
3.2.2 lags—pieces of insulation typically curved or tapered
systems.This is best achieved by limiting the number of joints,
used for insulating pipes, tanks and other cylindrical equip-
in particular through joints.
ment.
1.3 The values stated in inch-pound units are to be regarded
3.2.3 precision cut V-grooved pipe insulation, n—rigid in-
as standard. The values given in parentheses are mathematical
sulation pieces cut into 4-sided polygons, of two parallel
conversions to SI units that are provided for information only
surfaces and two non-parallel surfaces of equal angles = 180°
and are not considered standard.
/ N, such that when N number of these sections are assembled,
1.4 This standard does not purport to address all of the
they form an approximate circle and can be installed around a
safety concerns, if any, associated with its use. It is the
pipe.
responsibility of the user of this standard to establish appro-
3.2.3.1 Discussion—The adjective precision refers to the
priate safety and health practices and determine the applica-
fact that when these N sections are installed onto a pipe, they
bility of regulatory limitations prior to use.
fit exactly with no appreciable gaps between sections.
3.2.4 bond joint, n—the joint formed by the adhered mating
2. Referenced Documents
surfaces of several thicknesses of cellular glass block or
2
2.1 ASTM Standards:
fabricatedcellularglassinsulationpiecesthatareusedtocreate
C168 Terminology Relating to Thermal Insulation
a cellular glass insulation billet, bun, or pipe and tubing
C450 Practice for Fabrication of Thermal Insulating Fitting
insulation segments. See Fig. 1.
Covers for NPS Piping, and Vessel Lagging
3.2.4.1 Discussion—A bond joint is created during the
C552 Specification for Cellular Glass Thermal Insulation
fabrication of cellular glass pipe and tubing insulation and is
C585 Practice for Inner and Outer Diameters of Thermal
made with a full depth (100 % coverage) of an approved
Insulation for Nominal Sizes of Pipe and Tubing
adhesive. (See 3.2.1 and 8.4).
D312 Specification for Asphalt Used in Roofing
3
3.2.5 fabrication joints – see bond joint, n—the joint be-
2.2 ASTM Adjuncts:
tweenadheredmatingsurfacesofcellularglasspipeandtubing
ADJC0450A ASTM Recommended Dimensional Standards
insulation segments formed by fabricated segments or sections
for Fabrication of Thermal Insulation Fitting Covers
of cellular glass insulation that are assembled in the fabrication
shop, facility, or jobsite, to produce the cellular glass pipe and
1
This specification is under the jurisdiction of ASTM Committee C16 on tubing insulation. See Figs. 2-4.
Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on
3.2.5.1 Discussion—A fabrication joint is created at a fab-
Insulation Systems.
rication shop or facility and is made with a full depth (100 %
Current edition approved Sept. 1, 2016. Published October 2016. Originally
approved in 2007. Last previous edition approved in 2010 as C1639 – 10a. DOI: coverage) of an approved adhesive.
10.1520/C1639-16.
2 3.2.6 field joints, n—mating surfaces of cellular glass insu-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM lation created during the installation process.
Standards volume information, refer to the standard’s Document Summary page on
3.2.6.1 Discussion—Field joints shall be formed with full
the ASTM website.
3
depth adhesive, full depth of sealant or from the mating
Available from ASTM International Headquarters. Order Adjunct No.
ADJC0450A. surfaces of the cellular glass insulation.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

----------
...