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ASTM G 93 Document Information:
Title
Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments
ASTM International
Publication Date:
Nov 1, 2003
Scope:
This practice covers the selection of methods and apparatus for
cleaning materials and equipment
intended for service in oxygen-enriched environments. Contamination
problems encountered in the use
of enriched air, mixtures of oxygen with other gases, or any other
oxidizing gas may be solved by
the same cleaning procedures applicable to most metallic and
nonmetallic materials and equipment.
Cleaning examples for some specific materials, components, and
equipment, and the cleaning methods
for particular applications, are given in the appendices.
This practice includes levels of cleanliness used for various
applications and the methods used to
obtain and verify these levels.
This practice applies to chemical-, solvent-, and aqueous-based
processes.
This practice describes nonmandatory material for choosing the
required levels of cleanliness for
systems exposed to oxygen or oxygen-enriched atmospheres.
This practice proposes a practical range of cleanliness levels that
will satisfy most system needs,
but it does not deal in quantitative detail with the many conditions
that might demand greater
cleanliness or that might allow greater contamination levels to exist.
Furthermore, it does not
propose specific ways to measure or monitor these levels from among
the available methods.
The values stated in both inch-pound and SI units are to be regarded
separately as the standard
unit. The values given in parentheses are for information only.
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. Federal,
state and local safety and disposal regulations concerning the
particular hazardous materials,
reagents, operations, and equipment being used should be reviewed by
the user. The user is
encouraged to obtain the Material Safety Data Sheet (MSDS) from the
manufacturer for any material
incorporated into a cleaning process. Specific cautions are given in
Section 8.
Keywords:
- cleaning
- contamination control
- oxygen
- oxygen-enriched environments
- oxygen service
- oxygen systems
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