ASTM C1695-09
(Specification)Standard Specification for Fabrication of Flexible Removable and Reusable Blanket Insulation for Hot Service
Standard Specification for Fabrication of Flexible Removable and Reusable Blanket Insulation for Hot Service
ABSTRACT
This specification details the minimum property, design and construction requirements for flexible removable and reusable blanket insulation for hot service of above ambient temperatures. Insulation must be one of the following flexible fibrous materials acceptable for the maximum temperature of service: high temperature fiber blanket of any type or grade; needled glass fiber mechanically bonded felt; and mineral fiber blanket of the type suitable for the application. The material for the outer jacket liner and straps, where used, shall either be plain woven glass fiber fabric or that which has been treated with a water resistant compound such as silicone or fluorocarbon, and conforms with the following requirements: minimum weight; breaking strength; tear strength; burst strength; abrasion resistance; color; temperature resistance; and flame resistance.
SCOPE
1.1 This specification covers the minimum requirements for materials and fabrication of flexible removable and reusable blanket insulation for hot service, from above ambient temperatures to 1000°F (538°C).
1.2 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.
1.3 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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Standards Content (Sample)
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Designation: C1695 – 09
Standard Specification for
Fabrication of Flexible Removable and Reusable Blanket
Insulation for Hot Service
This standard is issued under the fixed designation C1695; 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 D3389 TestMethodforCoatedFabricsAbrasionResistance
(Rotary Platform Abrader)
1.1 This specification covers the minimum requirements for
D3776 Test Methods for Mass Per Unit Area (Weight) of
materials and fabrication of flexible removable and reusable
Fabric
blanket insulation for hot service, from above ambient tem-
D3786 Test Method for Bursting Strength of Textile
peratures to 1000°F (538°C).
Fabrics—Diaphragm Bursting Strength Tester Method
1.2 The values stated in inch-pound units are to be regarded
D5034 Test Method for Breaking Strength and Elongation
as standard. The values given in parentheses are mathematical
of Textile Fabrics (Grab Test)
conversions to SI units that are provided for information only
D5035 Test Method for Breaking Force and Elongation of
and are not considered standard.
Textile Fabrics (Strip Method)
1.3 This standard does not purport to address all of the
D5587 Test Method for Tearing Strength of Fabrics by
safety concerns, if any, associated with its use. It is the
Trapezoid Procedure
responsibility of the user of this standard to establish appro-
D6413 Test Method for Flame Resistance of Textiles (Ver-
priate safety and health practices and determine the applica-
tical Test)
bility of regulatory limitations prior to use.
2.2 Other Standards:
R
2. Referenced Documents 3E Plus Insulation Thickness Computer Program North
American Insulation Manufacturers Association
2.1 ASTM Standards:
(NAIMA)
C168 Terminology Relating to Thermal Insulation
MIL-C-20079H Military Specification Cloth, Glass; Tape,
C553 Specification for Mineral Fiber Blanket Thermal In-
Textile Glass and Thread, Glass and Wire Reinforced
sulation for Commercial and Industrial Applications
Glass
C680 Practice for Estimate of the Heat Gain or Loss and the
Surface Temperatures of Insulated Flat, Cylindrical, and
3. Terminology
Spherical Systems by Use of Computer Programs
3.1 General—Definitions included in Terminology C168
C892 Specification for High-Temperature Fiber Blanket
shall apply to the terms used in this specification.
Thermal Insulation
3.2 Definitions of Terms Specific to This Standard:
C1086 Specification for Glass Fiber Mechanically Bonded
3.3 removable and reusable blanket insulation, n—An in-
Felt Thermal Insulation
sulation blanket, encased in woven fabric and / or woven wire
C1129 Practice for Estimation of Heat Savings by Adding
mesh, that has attachment mechanisms designed to allow the
Thermal Insulation to Bare Valves and Flanges
assembly to be installed, then later removed and reinstalled,
C1136 Specification for Flexible, Low Permeance Vapor
without using any new insulation or fabric materials.
Retarders for Thermal Insulation
3.4 coated fabric, n—A woven fabric coated with a rubber
C1263 Test Method for Thermal Integrity of Flexible Water
or plastic compound such that the woven fabric material itself
Vapor Retarders
is not exposed to the environment.
3.5 lacing hook, n—a metal hook that is located on the
This specification is under the jurisdiction of ASTM Committee C16 on outside surface of an insulation blanket and that is secured
Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on
Insulation Systems.
Current edition approved Sept. 1, 2009. Published September 2009. DOI: Available from North American Insulation Manufacturers Association
10.1520/C1695-09. (NAIMA), 44 Canal Center Plaza, Suite 310 Alexandria, VA 22314, http://
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.naima.org
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
the ASTM website. www.dodssp.daps.mil.
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C1695 – 09
through the blanket; tie wire is wrapped around it so as to 4.3.1.1 a plain, heat cleaned, glass fiber fabric,
secure an insulation blanket around a pipe component or piece 4.3.1.2 a Type 304 stainless steel wire knitted mesh made
of equipment. from 0.008 inch (0.20 mm) diameter wire with nominal 6 to 8
3.6 lacing anchor, n—ametaldisk,locatedontheoutsideof openings per in.
an insulation blanket, that is secured to a pin that passes 4.3.2 For surfaces from 501°F (261°C) to 1000°F (538°C)
through the blanket; the assembly is used to wrap tire wire where leaks of process fluids are expected, such as flange pairs
around so as to secure an insulation blanket around a pipe and valves, the inner layer and gussets shall be as specified in
component or piece of equipment. 4.3.1 and 4.3.1.1 above but also with Type 304 stainless steel
3.7 D-ring, n—a section of heavy wire which forms a foil that has a minimum thickness of 0.001 in. (0.025 mm).
complete loop in either a rectangular shape or the shape of the This foil shall be placed between the insulation material and
capital letter “D”, that is used in removable insulation blankets the outer fabric or wire mesh.
for attaching a fabric strap that secures the blanket around a 4.4 Tie-Down Straps shall be constructed of one of the
pipe component or piece of equipment. following three types of material: (1) the same material as the
outer jacket, (2) a woven glass fiber fabric, or (3) a tape of
4. Materials
suitable thickness with the same coating as the outer jacket
4.1 Insulation shall be of a flexible fibrous material accept- material. If the same material as the outer jacket is used, then
able for the maximum temperature of the application. Accept- a double thickness is required with an edge trim sewn in place
able materials must be one of the following: along both edges. Edge trim shall be applied to prevent
High Temperature Fiber Blanket per Specification C892, any exposed fabric edges. Ends of the straps shall be turned under
1 1
Type or Grade ⁄4 (6.35mm) to ⁄2 (13mm) inch and double-stitched to prevent
Needled Glass Fiber Mechanically Bonded Felt per Specifica- unraveling.
tion C1086C1086 4.5 Drawstrings shall be made from 100% textured glass
Mineral Fiber Blanket, per Specification C553, of the Type fiber sleeving with plain weave, ⁄8 in. inside diameter and 0.03
suitable for the application. in. wall thickness. Drawstrings shall be suitable for 1000°F
4.2 Material for the outer jacket liner and straps, where (538°C) services.
used,shallbewovenglassfibercloththathasbeentreatedwith 4.6 PTFE-coated glass fiber thread shall be used for service
a water resistant compound, such as silicone or fluorocarbon, temperatures to 500°F (260°C). Glass fiber thread shall be
thatissuitableforbothinteriorandexterioruse,andhavingthe 0.021 inch (0.53 mm) diameter, minimum 20 lbs (9 kg).
properties as shown in Table 1. breaking strength.
4.3 Material for the inner jacket shall be the same as for the 4.7 Stainless steel thread shall be used for service tempera-
outer jacket for surface temperatures less than 500°F tures above 500°F (260°C).Thread shall be minimum 0.015 in.
(260°F°C). (0.38 mm) diameter and minimum 18 lbs (8.16 kg). breaking
4.3.1 For surfaces from 501°F (261°C) to 1000°F (538°C) strength.
where leaks of process fluids are not expected, the inner layer 4.8 All hardware such as D-rings, buckles, tags, etc., shall
and gussets shall be one of the following: be Type 304 stainless steel.
TABLE 1 Physical and Performance Requirements for Fabrics
Plain, heat cleaned Glass fiber fabric Fiber fabric coated
A
glass fibe
...
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