ASTM E1993-98(2008)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:E1993 −98(Reapproved 2008)
Standard Specification for
Bituminous Water Vapor Retarders Used in Contact with
Soil or Granular Fill Under Concrete Slabs
This standard is issued under the fixed designation E1993; 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 E631 Terminology of Building Constructions
1.1 Thisspecificationcoversbituminouswatervaporretard-
3. Terminology
ers for use in contact or granular fill under concrete slabs.
3.1 Definitions:
1.2 The specified tests are conducted on new materials and
3.1.1 For definitions of terms used in this specification, see
materials that have been conditioned or exposed to simulate
Terminologies C168 and E631.
potential service conditions.
3.2 Definitions of Terms Specific to This Standard:
1.3 The values stated in SI units are to be regarded as
3.2.1 perm, n—the time rate of water vapor migration
standard. The values given in parentheses are provided for
through a material or a construction of one grain per hour,
information only and are not considered standard.
square foot, inch of mercury pressure difference.
1.4 This standard does not purport to address all of the
3.2.1.1 Discussion—If a specification states that a one perm
safety concerns, if any, associated with its use. It is the limit is required, the same flow rate will be obtained from the
responsibility of the user of this standard to establish appro-
following relationships:
priate safety and health practices and determine the applica- 2
1 perm = 1 grain/(h · ft · in Hg) inch pound
—12 2
bility of regulatory limitations prior to use. = 57.2 10 kg/(Pa·s·m ) SI Fundamental Units
=57.2ng/(Pa·s·m ) SI Frequently Used
=0.66g/24h·m · mm Hg SI has been used but is now
2. Referenced Documents
obsolete
2.1 ASTM Standards:
3.2.2 vapor retarder, n—(formally vapor barrier) a material
C168 Terminology Relating to Thermal Insulation
or construction that impedes the transmission of water vapor
D828 Test Method for Tensile Properties of Paper and
under specified conditions.
PaperboardUsingConstant-Rate-of-ElongationApparatus
3.2.3 water vapor permeability, n—a property of material
(Withdrawn 2009)
which is water vapor permeance through unit thickness. Since
D1790 Test Method for Brittleness Temperature of Plastic
materials that provide resistance to vapor flow are never used
Sheeting by Impact
inunitthickness,theevaluationofbothmaterialsandconstruc-
D5147 Test Methods for Sampling and Testing Modified
tions used herein is permeance.
Bituminous Sheet Material
E96/E96M Test Methods for Water Vapor Transmission of
4. Sampling
Materials
4.1 Each sampling shall consist of sufficient material to
E154 Test Methods for Water Vapor Retarders Used in
provide at least five specimens for the tests listed in Section 7.
Contact with Earth Under Concrete Slabs, on Walls, or as
Ground Cover
5. Specifying Information
5.1 Specification for materials shall include the following:
5.1.1 This specification number, and
This specification is under the jurisdiction of ASTM Committee E06 on
5.1.2 Performance requirements, if any, for special condi-
Performance of Buildingsand are the direct responsibility of Subcommittee E06.21
onServiceability. tions (see 7.6).
Current edition approved Oct. 1, 2008. Published November 2008. Originally
ε1
approved in 1998. Last previous edition approved in 2002 as E1993 – 98 (2002) .
6. Lap Sealing
DOI: 10.1520/E1993-98R08.
6.1 This producer shall provide supplier/seller/installer with
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
instructions for lap sealing, including minimum width of lap,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
The last approved version of this historical standard is referenced on See 3.2.3 of Test Methods E154. This conversion is based on a temperature of
www.astm.org. 0°C (32°F) and not on an environmental temperature of 23°C (73.4°F).
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E1993−98 (2008)
method of sealing, and shall either supply or recommend 7.3 Tensile Strength of New Material—Refer to Section 9 of
specified suitable products for lap sealin
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