Standard Test Method for Indicating Oil or Water in Compressed Air

SIGNIFICANCE AND USE
Clean compressed air is required to prevent contamination of coating materials and surfaces being prepared for coating. This test method is a visual examination technique for determining oil or water in compressed air. Other types of contamination may require additional analytical techniques for detection.
SCOPE
1.1 This test method is used to determine the presence of oil or water in compressed air used for abrasive blast cleaning, air blast cleaning, and coating application operations.  
1.2 This standard does not purport to address all of the safety problems, 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. For specific hazard statements, see Section 4.

General Information

Status
Historical
Publication Date
30-Nov-2006
Current Stage
Ref Project

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ASTM D4285-83(2006) - Standard Test Method for Indicating Oil or Water in Compressed Air
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4285–83(Reapproved2006)
Standard Test Method for
Indicating Oil or Water in Compressed Air
This standard is issued under the fixed designation D4285; 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 4.1.2 Allow air to discharge at operating conditions to
remove accumulated condensation in the system.
1.1 This test method is used to determine the presence of oil
4.2 Fasten the collector material to the rigid backing.
or water in compressed air used for abrasive blast cleaning, air
Precaution: Avoid personal contact with the air stream.
blast cleaning, and coating application operations.
1.2 This standard does not purport to address all of the
5. Sampling
safety concerns, if any, associated with its use. It is the
5.1 Conduct the test on discharging air as close to the use
responsibility of the user of this standard to establish appro-
point as possible and after the inline oil and water separators.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For specific hazard
6. Procedure
statements, see Section 4.
6.1 Use either the absorbent or nonabsorbent collector.
6.2 Position the collector within 24 in. of the air-discharge
2. Significance and Use
point, centered in the air stream.
2.1 Clean compressed air is required to prevent contamina-
6.3 Adjust air discharge so that the collector remains intact
tion of coating materials and surfaces being prepared for
during the test. Allow air to discharge onto the collector for a
coating. This test method is a visual examination technique for
minimum of 1 min.
determining oil or water in compressed air. Other types of
6.4 Visually examine the collector for the presence or
contamination may require additional analytical techniques for
absence of oil or water, or both.
detection.
7. Interpretation of Results
3. Apparatus and Materials
7.1 Any indication of oil discoloration on the collector shall
3.1 Absorbent Collector, such as white absorbent paper or
be cause for rejection of the compressed air for use in abrasive
cloth and rigid backing for mounting absorbent collector, or
blast cleaning, air blast cleaning, and coating application
3.2 Non
...

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