ASTM D4285-83(2018)

Standard Test Method for Indicating Oil or Water in Compressed Air

SIGNIFICANCE AND USE
2.1 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 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 4.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Jul-2018
• ICS: 23.140 - Compressors and pneumatic machines
• Technical Committee: D33 - Protective Coating and Lining Work for Power Generation Facilities
• Drafting Committee: D33.05 - Application and Surface Preparation

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D4285 − 83 (Reapproved 2018)
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. Cautions
1.1 This test method is used to determine the presence of oil 4.1 To avoid false indications prior to testing:
or water in compressed air used for abrasive blast cleaning, air 4.1.1 Allow compressed air system to reach operating
blast cleaning, and coating application operations. conditions, and
4.1.2 Allow air to discharge at operating conditions to
1.2 The values stated in inch-pound units are to be regarded
remove accumulated condensation in the system.
as standard. No other units of measurement are included in this
standard. 4.2 Fasten the collector material to the rigid backing.
Precaution: Avoid personal contact with the air stream.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Sampling
responsibility of the user of this standard to establish appro-
5.1 Conduct the test on discharging air as close to the use
priate safety, health, and environmental practices and deter-
point as possible and after the inline oil and water separators.
mine the applicability of regulatory limitations prior to use.
For specific hazard statements, see Section 4.
6. Procedure
1.4 This international standard was developed in accor-
6.1 Use either the absorbent or nonabsorbent collector.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 6.2 Position the collector within 24 in. of the air-discharge
point, centered in the air stream.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
6.3 Adjust air discharge so that the collector remains intact
Barriers to Trade (TBT) Committee.
during the test. Allow air to discharge onto the collector for a
minimum of 1 min.
2. Significance and Use
6.4 Visually examine the collector for the presence or
2.1 Clean compressed air is required to prevent contamina-
absence of oil or water, or both.
tion of coating materials and surfaces being prepared for
coating. This test method is a visual examination technique for 7. Interpretation of Results
determining oil or water in compressed air. Other types of
7.1 Any indication of oil discoloration on the collector
...