ASTM C533-03

Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation

SCOPE
1.1 This specification covers calcium silicate block and pipe thermal insulation for use on surfaces with temperatures between 80 and 1700°F (27 to 927°C), unless otherwise agreed upon between the manufacturer and the purchaser.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following safety hazards caveat pertains only to the test method (Section 12) described in this specification: 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2003
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.20 - Homogeneous Inorganic Thermal Insulations

Relations

• Replaces: ASTM C533-95(2001) - Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation
• Effective Date: 01-Nov-2003
• Replaced By: ASTM C533-04 - Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation
• Effective Date: 01-Jun-2004
• Referred By: ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
• Effective Date: 01-Nov-2003
• Referred By: ASTM F683-23 - Standard Practice for Selection and Application of Thermal Insulation for Piping and Machinery
• Effective Date: 01-Nov-2003
• Referred By: ASTM C419-20 - Standard Practice for Making and Curing Test Specimens of Mastic Thermal Insulation Coatings
• Effective Date: 01-Nov-2003
• Referred By: ASTM C1558-19 - Standard Guide for Development of Standard Data Records for Computerization of Thermal Transmission Test Data for Thermal Insulation
• Effective Date: 01-Nov-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C 533 – 03
Standard Specification for
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Calcium Silicate Block and Pipe Thermal Insulation
This standard is issued under the fixed designation C 533; 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 C 390 Criteria for Sampling and Acceptance of Preformed
Thermal Insulation Lots
1.1 This specification covers calcium silicate block and pipe
C 411 Test Method for Hot-Surface Performance of High-
thermal insulation for use on surfaces with temperatures
Temperature Thermal Insulation
between 80 and 1700°F (27 to 927°C), unless otherwise agreed
C 421 Test Method for Tumbling Friability of Preformed
upon between the manufacturer and the purchaser.
Block-Type Thermal Insulation
1.2 The values stated in inch-pound units are to be regarded
C 446 Test Method for Breaking Load and Calculated
as the standard. The values given in parentheses are for
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Modulus of Rupture of Preformed Insulation for Pipes
information only.
C 450 Practice for Prefabrication of Thermal Insulating
1.3 The following safety hazards caveat pertains only to the
Fitting Covers for NPS Piping and Vessel Lagging
test method (Section 12) described in this specification: This
C 518 Test Method for Steady-State Thermal Transmission
standard does not purport to address all of the safety concerns,
Properties by Means of the Heat Flow Meter Apparatus
if any, associated with its use. It is the responsibility of the user
C 585 Practice for Inner and Outer Diameters of Rigid
of this standard to establish appropriate safety and health
Thermal Insulation for Nominal Sizes of Pipe and Tubing
practices and determine the applicability of regulatory limita-
(NPS System)
tions prior to use.
C 795 Specification for Thermal Insulation for Use In
2. Referenced Documents
Contact with Austenitic Stainless Steel
2
C 870 Practice for Conditioning of Thermal Insulating Ma-
2.1 ASTM Standards:
terials
C 165 Test Method for Measuring Compressive Properties
C 1045 Practice for Calculating Thermal Transmission
of Thermal Insulations
Properties Under Steady-State Conditions
C 168 Terminology Relating to Thermal Insulation
C 1058 Practice for Selecting Temperatures for Evaluating
C 177 Test Method for Steady-State Heat Flux Measure-
and Reporting Thermal Properties of Thermal Insulation
ments and Thermal Transmission Properties by Means of
C 1114 Test Method for Steady-State Thermal Transmission
the Guarded-Hot-Plate Apparatus
Properties by Means of the Thin-Heater Apparatus
C 203 Test Methods for Breaking Load and Flexural Prop-
E 84 Test Method for Surface Burning Characteristics of
erties of Block-Type Thermal Insulation
Building Materials
C 302 Test Method for Density and Dimensions of Pre-
formed Pipe-Covering-Type Thermal Insulation
3. Terminology
C 303 Test Method for Dimensions and Density of Pre-
3.1 Definitions—For definitions used in this specification,
formed Block- and Broad-Type Thermal Insulation
see Terminology C 168.
C 335 Test Method for Steady-State Heat Transfer Proper-
ties of Horizontal Pipe Insulation
4. Classification
C 356 Test Method for Linear Shrinkage of Preformed
4.1 Thermal insulation shall be of the following types:
High-Temperature Thermal Insulation Subjected to Soak-
4.1.1 Type I—For use on surfaces at temperature from
ing Heat
140°F (60°C) to to 1200°F (649°C).
4.1.2 Type II—For use on surfaces at temperatures from
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This specification is under the jurisdiction of ASTM Committee C16 on
140°F (60°C) to 1700°F (927°C).
Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on
Homogeneous Inorganic Thermal Insulations.
5. Description
Current edition approved Nov. 1, 2003. Published December 2003. Originally
5.1 Composition—Calcium silicate thermal insulation shall
approved in 1964 to replace C 344 and C 345. Last previous edition approved in
2001 as C 533 – 95 (2001).
consist principally of hydrous calcium silicate usually with the
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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the ASTM website. Withdrawn.
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C533–03
incorporation of fibrous reinforcement. Asbestos shall not be 7.1.3 Grooved Block—Grooved block may be furnished in
used as a component in the manufacture of the material. lengths of 36 in. (914 mm), widths of 12 or 18 in. (305 or 458
1
mm), an
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