ASTM C929-94
(Practice)Standard Practice for Handling, Transporting, Shipping, Storage, Receiving, and Application of Thermal Insulation Materials For Use in Contact with Austenitic Stainless Steel
Standard Practice for Handling, Transporting, Shipping, Storage, Receiving, and Application of Thermal Insulation Materials For Use in Contact with Austenitic Stainless Steel
SCOPE
1.1 This practice is intended to provide guidance and direction in the handling, transporting, shipping, storage, receiving, and application of thermal insulating materials to be used as a surface treatment or as part of the thermal insulation system in contact with austenitic stainless steel.
1.2 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.
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Designation: C 929 – 94
Standard Practice for
Handling, Transporting, Shipping, Storage, Receiving, and
Application of Thermal Insulation Materials For Use in
Contact with Austenitic Stainless Steel
This standard is issued under the fixed designation C 929; 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 3.2.3 weathertight—protected from rain and wind. A dry,
sheltered condition wherein reasonable precautions are taken to
1.1 This practice is intended to provide guidance and
prevent indiscriminate water from coming in contact with the
direction in the handling, transporting, shipping, storage,
insulation.
receiving, and application of thermal insulating materials to be
used as a surface treatment or as part of the thermal insulation
4. Significance and Use
system in contact with austenitic stainless steel.
4.1 Insulations that are used as a part of the thermal
1.2 This standard does not purport to address all of the
insulation system in contact with austenitic stainless steels may
safety concerns, if any, associated with its use. It is the
become contaminated with water soluble chloride ions which,
responsibility of the user of this standard to establish appro-
in turn, if permitted to reach the stainless steel surface, could
priate safety and health practices and determine the applica-
contribute to external stress corrosion cracking (ESCC). There-
bility of regulatory limitations prior to use.
fore, it is important to reduce the exposure of such insulating
2. Referenced Documents materials to water-soluble chloride ion compounds at all stages
of manufacture, handling, shipping, storage, and application.
2.1 ASTM Standards:
During manufacture, precautions shall be taken to minimize
C 168 Terminology Relating to Thermal Insulating Materi-
water soluble-chloride ion content, both in the material and as
als
surface contamination. Once the manufacture is complete, care
C 692 Test Method for Evaluating the Influence of Thermal
must be exercised during handling, transporting, shipping,
Insulations on the External Stress Corrosion Cracking
storage, receiving, and application to avoid contamination with
Tendency of Austenitic Stainless Steel
chloride ions that can be transported by water through the
C 795 Specification for Thermal Insulation for Use in Con-
insulation materials onto the stainless steel surface. This
tact with Austenitic Stainless Steel
practice presents criteria which, if followed, will minimize the
C 871 Test Methods for Chemical Analysis of Thermal
risks of ESCC associated with the application of insulation
Insulation Materials for Leachable Chloride, Fluoride,
materials. It should be emphasized, however, that because of
Silicate, and Sodium Ions
the many variable factors present, complete freedom from
3. Terminology ESCC can not be assured under all circumstances, even when
following the guidance of this practice.
3.1 Definitions—Terminology C 168 shall apply to this
4.2 Continued protection of the insulation and the stainless
practice.
steel surface from moisture and contamination after the insu-
3.2 Descriptions of Terms Specific to This Standard:
lation system is installed and over its entire service life is of
3.2.1 shipment—that material being received from the same
significant importance. In-service contamination can occur
source of manufacture on the same day or each carload,
from many sources; for example, from airborne contaminates,
whichever is smaller.
rain or salt spray, periodic fire sprinkler system tests, wash-
3.2.2 water damage—damage caused by water seeping into
downs, or process leakage. Weather barrier jacketing systems
cartons of insulation or soaking into the insulation that is left
and proper application should be chosen to provide long-term
exposed to the weather, both of which increase the possibilities
protection in the intended use environment.
of absorption of chloride ion compounds.
4.3 The entire insulation system should be periodically
inspected and maintained. Insulation that is suspected of
This practice is under the jurisdiction of ASTM Committee C-16 on Thermal
contamination should be retested or immediately replaced.
Insulation and is the direct responsibility of Subcommittee C16.20 on Homogeneous
Wash down of insulated pipe and equipment should be
Inorganic Thermal Insulation.
avoided. Whenever possible, protective coatings or finishes
Current edition approved March 15, 1994. Published May 1994. Originally
published as C 929 – 80. Last previous edition C 929 – 88.
should be applied directly to the stainless steel surface as the
Annual Book of ASTM Standards, Vol 04.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
C 929
primary source of corrosion protection. 9. Application Precautions
9.1 Although this practice will help to prevent stress corro-
5. General
sion cracking of austenitic stainless steel surfaces, it should be
5.1 Only materials that have been tested and qualified (see
noted that the cleanliness of the surface to which it is applied
Note 1) should be used as a surface treatment or as a part of the
is of equal importance. Stainless steel surfaces may be con-
thermal insulation system applied to austenitic stainless steel.
taminated from external sources, such as airborne sea mist
Requirements for preproduction or qualification testing and
carried by onshore winds, chemical fumes, ink from marking
subsequent lot testing by the manufacturer or seller shall be
pens, adhesive on tape, accidental spills of watersoluble
specified by the purchaser when ordering.
chloride ion-bearing materials, melting salts used to clear ice
and snow, and many other ways. The contaminant should be
NOTE 1—For example, thermal insulation shall be tested in conform-
remo
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