ASTM E632-82(1996)

Standard Practice for Developing Accelerated Tests to Aid Prediction of the Service Life of Building Components and Materials (Withdrawn 2005)

SCOPE
1.1 This practice covers steps that should be followed in developing accelerated tests for predicting the service life of building components and materials. Although mathematical analyses needed for prediction of service life are not described in detail, either deterministic or probabilistic analysis may be used. Note 1-Comparative testing is an alternative to the steps identified in this practice; it involves qualitative comparison of the results of a test component or material with the results of a similar control component or material when exposed to identical conditions.
1.2 This practice outlines a systematic approach to service life prediction, including the identification of needed information, the development of accelerated tests, the interpretation of data, and the reporting of results.
WITHDRAWN RATIONALE
This practice covers steps that should be followed in developing accelerated tests for predicting the service life of building components and materials.
Formerly under the jurisdicion of Committee G3 on Durability of Nonmetallic Materials, this practice was withdrawn in January 2005.

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-1987
• Withdrawal Date: 18-May-2005
• ICS: 91.100.01 - Construction materials in general
• Technical Committee: G03 - Weathering and Durability
• Drafting Committee: G03.08 - Service Life Prediction

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:E632–82(Reapproved1996)
Standard Practice for
Developing Accelerated Tests to Aid Prediction of the
1
Service Life of Building Components and Materials
This standard is issued under the fixed designation E 632; 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 (ε) indicates an editorial change since the last revision or reapproval.
1. Scope must be maintained above a certain minimum level if the
component or material is not to lose its ability to perform its
1.1 This practice covers steps that should be followed in
intended functions.
developing accelerated tests for predicting the service life of
2.1.7 degradation mechanism—the sequence of chemical or
building components and materials. Although mathematical
physical changes, or both, that leads to detrimental changes in
analyses needed for prediction of service life are not described
one or more properties of a building component or material
in detail, either deterministic or probabilistic analysis may be
when exposed to one or more degradation factors.
used.
2.1.8 degradation factor—any of the group of external
NOTE 1—Comparative testing is an alternative to the steps identified in
factors that adversely affect the performance of building
this practice; it involves qualitative comparison of the results of a test
components and materials, including weathering, biological,
component or material with the results of a similar control component or
stress, incompatibility, and use factors.
material when exposed to identical conditions.
2.1.9 durability—the capability of maintaining the service-
1.2 This practice outlines a systematic approach to service
ability of a product, component, assembly, or construction over
life prediction, including the identification of needed informa-
a specified time.
tion, the development of accelerated tests, the interpretation of
2.1.10 incompatibility factor—any of the group of degrada-
data, and the reporting of results.
tion factors that result from detrimental chemical and physical
interactions between building components or materials.
2. Terminology
2.1.11 in-service test—a test in which building components
2.1 Definitions of Terms Specific to This Standard:
ormaterialsareexposedtodegradationfactorsunderin-service
2.1.1 aging test—a test in which building components or
conditions.
materials are subjected or exposed to factors believed to cause
2.1.12 performance criterion—a quantitative statement of a
degradation.
level of performance for a selected performance characteristic
2.1.2 accelerated aging test—an aging test in which the
of a component or material needed to ensure compliance with
degradation of building components or materials is intention-
a performance requirement.
ally accelerated over that expected in service.
2.1.13 performance requirement—a qualitative statement of
2.1.3 biological degradation factor—any of the group of
the performance required from a building component or
degradation factors that are directly associated with living
material.
organisms, including microorganisms, fungi, and bacteria.
2.1.14 predictive service life test—a test, consisting of both
2.1.4 building component—an identifiable part of a building
a property measurement test and an aging test, that is used to
that may include a combination of building materials, such as
predict the service life (or compare the relative durabilities) of
a wall or a roof.
building components or materials in a time period much less
2.1.5 building material—an identifiable material that may
than the expected service life.
be used in a building component, such as brick, concrete,
2.1.15 property measurement test—a test for measuring one
metal, or lumber.
or more properties of building components or materials.
2.1.6 critical performance characteristic(s)—a property, or
2.1.16 serviceability—the capability of a building product,
group of properties, of a building component or material that
component, assembly, or construction to perform the func-
tion(s) for which it is designed and constructed.
1
This practice is under the jurisdiction of ASTM Committee G-3 on Durability
2.1.17 service life (of a building component or material)—
of Nonmetallic Materials and is the direct responsibility of Subcommittee G03.03
the period of time after installation during which all properties
on Simulated and Controlled Environmental Tests.
exceed the minimum acceptable values when routinely main-
Current edition approved Feb. 26, 1982. Published May 1982. Originally
tained.
published as E 632 – 78. Last previous edition E 632– 81.
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