ASTM F868-02

Standard Classification for Laminated Composite Gasket Materials

SIGNIFICANCE AND USE
This classification is intended to encourage uniformity in reporting properties; to provide a common language for communications between producers and users; to guide engineers and designers in the use, construction, and properties of commercially available materials; and to be versatile enough to cover new materials and test methods as they are introduced.
SCOPE
1.1 This classification covers a means for specifying or describing pertinent properties of commercial laminate composite gasket materials (LCGM). These structures are composed of two or more chemically different layers of material. These materials may be organic or inorganic, or combinations with various binders or impregnants. Gasket coatings are not covered since details thereof are intended to be given on engineering drawings, or as separate specifications. Commercial materials designated as enveloped gaskets are excluded from this classification; they are covered in Practice F 336.
1.2 Since all of the properties that contribute to gasket performance are not included, use of this classification as a basis for selecting LCGM is limited.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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: 09-Oct-2002
• ICS: 21.140 - Seals, glands
• Technical Committee: F03 - Gaskets
• Drafting Committee: F03.10 - Composite Gaskets

Relations

• Replaces: ASTM F868-91(1997)e1 - Standard Classification for Laminated Composite Gasket Materials
• Effective Date: 10-Oct-2002
• Replaced By: ASTM F868-02(2009) - Standard Classification for Laminated Composite Gasket Materials
• Effective Date: 01-May-2009
• Referred By: ASTM F1276-23 - Standard Test Method for Creep Relaxation of Laminated Composite Gasket Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM F336-02(2023) - Standard Practice for Design and Construction of Nonmetallic Enveloped Gaskets for Corrosive Service
• Effective Date: 10-Oct-2002
• Referred By: ASTM F3149-15(2021) - Standard Practice for Determining the Maintenance Factor (<emph type="bdit">m</emph >) and Yield Factor (<emph type="bdit">y</emph>) Loading Constants Applicable to Gasket Materials and Designs
• Effective Date: 10-Oct-2002
• Referred By: ASTM F104-11(2020) - Standard Classification System for Nonmetallic Gasket Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM F3270/F3270M-17 - Standard Practice for Compression versus Load Properties of Gasket Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM F2378-05(2023) - Standard Test Method for Sealability of Sheet, Composite, and Solid Form-in-Place Gasket Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM F2325-14(2020) - Standard Classification for Multi-Layer Steel (MLS) and Other Metal Layer Gaskets for Transportation Applications
• Effective Date: 10-Oct-2002

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: F 868 – 02
Standard Classification for
1
Laminated Composite Gasket Materials
This standard is issued under the fixed designation F 868; 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.
3
1. Scope Enveloped Gaskets for Corrosive Service
F 433 Practice for Evaluating Thermal Conductivity of
1.1 This classification covers a means for specifying or
3
Gasket Materials
describing pertinent properties of commercial laminate com-
F 1276 Test Method for Creep Relaxation of Laminated
posite gasket materials (LCGM). These structures are com-
3
Composite Gasket Materials
posed of two or more chemically different layers of material.
These materials may be organic or inorganic, or combinations
3. Terminology
with various binders or impregnants. Gasket coatings are not
3.1 Definitions of Terms Specific to This Standard:
covered since details thereof are intended to be given on
3.1.1 board—the term board is used in the context of a thick
engineering drawings, or as separate specifications. Commer-
(generally greater than 1.52 mm (0.060 in.)) and rigid nonme-
cial materials designated as enveloped gaskets are excluded
tallic material often purchased in sheet or strip form.
from this classification; they are covered in Practice F 336.
3.1.2 composite gasket material—a gasket structure com-
1.2 Since all of the properties that contribute to gasket
posed of two or more different materials joined together in flat,
performance are not included, use of this classification as a
parallel layers.
basis for selecting LCGM is limited.
1.3 The values stated in SI units are to be regarded as the
4. Significance and Use
standard. The values given in parentheses are for information
4.1 This classification is intended to encourage uniformity
only.
in reporting properties; to provide a common language for
1.4 This standard does not purport to address all of the
communications between producers and users; to guide engi-
safety concerns, if any, associated with its use. It is the
neers and designers in the use, construction, and properties of
responsibility of the user of this standard to establish appro-
commercially available materials; and to be versatile enough to
priate safety and health practices and determine the applica-
cover new materials and test methods as they are introduced.
bility of regulatory limitations prior to use.
5. Basis of Classification
2. Referenced Documents
5.1 This classification is based on the principle that LCGM
2.1 ASTM Standards:
should be described, insofar as possible, in terms of use,
A 109/A 109M Specification for Steel, Strip, Carbon (0.25
2 composition, combining method, and specific physical and
Maximum Percent), Cold-Rolled
mechanical characteristics.Thus, users of gasket materials can,
D 2000 Classification System for Rubber Products inAuto-
3 by selecting different combinations of materials and properties,
motive Applications
define various parts. Suppliers, likewise, can report uses,
F 104 Classification System for Nonmetallic Gasket Mate-
3 composition, and properties of available products.
rials
F 146 Test Methods for Fluid Resistance of Gasket Materi-
6. Numbering System
3
als
6.1 To permit line call-out of the description mentioned in
F 336 Practice for Design and Construction of Nonmetallic
5.1, this classification establishes letter or number symbols to
describe use, composition, and physical properties and perfor-
mance levels of certain properties.
1
This classification is under the jurisdiction of ASTM Committee F03 on
6.2 In specifying or describing gasket materials, each line
Gaskets and is the direct responsibility of Subcommittee F03.10 on Composite
Gaskets.
call-out shall include the number of this system and a number
Current edition approved October 10, 2002. Published October 2002. Originally
and letter series describing the use, composition, and combin-
e1
published as F 868 – 84. Last previous edition F 868 – 91 (1997) .
2 ing method plus suffix call-out, as shown in Table 1.
Annual Book of ASTM Standards, Vol 01.03.
3
Annual Book of ASTM Standards, Vol 09.02.
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F868–02
6.3 To further specify or describe gasket materials, each line 10. Conditioning
call-out may include one or more suffix letter-numeral sym-
10.1 Prior to all tests, specimens shall be conditioned as
bols, as listed in Table 2.
follows:
7. Physical and Mechanical Properties
10.1.1 WhenallClassificationF 104layersofthecomposite
7.1 Gasket mate
...