ASTM D7393-07(2012)

Standard Practice for Indicating Oil in Abrasives

SIGNIFICANCE AND USE
4.1 Oil in abrasives can be transferred to the surface being cleaned, thus contaminating it. This can cause film defects, affect adhesion of the coating applied over it, and ultimate performance of the coating system.  
4.2 Oil in abrasives is one of the cleanliness tests required for mineral and slag abrasives in SSPC-AB1, for recycled ferrous abrasives in SSPC-AB2, and for new ferrous abrasives in SSPC-AB3.  
4.3 Other contaminants in abrasive such as chemical contaminants or particulate matter require other methods for detection such as Test Method D4940 for ionic contaminants. The ratio of abrasive to water is different for this test, so the solution from evaluating the oil in abrasive should not be used for Test Method D4940.
SCOPE
1.1 This practice is used to determine the presence of oil in abrasives used for abrasive blast cleaning.  
1.2 The procedure can be used in the laboratory, field or fabrication shop.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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.

General Information

• Status: Historical
• Publication Date: 31-May-2012
• ICS: 13.040.30 - Workplace atmospheres
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.46 - Industrial Protective Coatings

Relations

• Replaces: ASTM D7393-07 - Standard Practice for Indicating Oil in Abrasives
• Effective Date: 01-Jun-2012
• Referred By: ASTM D3276-21 - Standard Guide for Painting Inspectors (Metal Substrates)
• Effective Date: 01-Jun-2012
• Referred By: ASTM D7055-19 - Standard Practice for Preparation (by Abrasive Blast Cleaning) of Hot-Rolled Carbon Steel Panels for Testing of Coatings
• Effective Date: 01-Jun-2012
• Referred By: ASTM E3355-23 - Standard Guide for Characterization of Coal Combustion Products (CCPs) in Storage Area(s) for Beneficial Use
• Effective Date: 01-Jun-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D7393 − 07(Reapproved 2012)
Standard Practice for
Indicating Oil in Abrasives
This standard is issued under the fixed designation D7393; 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. Significance and Use
4.1 Oil in abrasives can be transferred to the surface being
1.1 This practice is used to determine the presence of oil in
cleaned, thus contaminating it. This can cause film defects,
abrasives used for abrasive blast cleaning.
affect adhesion of the coating applied over it, and ultimate
1.2 The procedure can be used in the laboratory, field or
performance of the coating system.
fabrication shop.
4.2 Oil in abrasives is one of the cleanliness tests required
1.3 The values stated in SI units are to be regarded as the
for mineral and slag abrasives in SSPC-AB1, for recycled
standard. The values given in parentheses are for information
ferrous abrasives in SSPC-AB2, and for new ferrous abrasives
only.
in SSPC-AB3.
1.4 This standard does not purport to address all of the
4.3 Other contaminants in abrasive such as chemical con-
safety concerns, if any, associated with its use. It is the
taminants or particulate matter require other methods for
responsibility of the user of this standard to establish appro-
detection such as Test Method D4940 for ionic contaminants.
priate safety and health practices and determine the applica-
The ratio of abrasive to water is different for this test, so the
bility of regulatory limitations prior to use.
solution from evaluating the oil in abrasive should not be used
for Test Method D4940.
2. Referenced Documents
5. Apparatus and Materials
2.1 ASTM Standards:
5.1 Container—Clear jar or bottle capable of holding 250
D4940 Test Method for Conductimetric Analysis of Water
ml (8.5 fl oz) or more and with a lid that is capable of sealing
Soluble Ionic Contamination of Blasting Abrasives
the contents.
2.2 SSPC Standards:
5.2 Water—Potable.
SSPC-AB1 Mineral and Slag Abrasives
SSPC-AB2 Cleanliness of Recycled Ferrous Metallic Abra-
6. Procedure
sive
6.1 Place a sample of the abrasive in a clean container to
SSPC-AB3 Ferrous Metallic Abrasive
about half its height.
3. Summary of Practice 6.2 Add water to a level at least 2.5 cm (1 in.) above the top
of the abrasive. The water temperature shall be between 20 and
3.1 A sample of the abrasive is placed in a container,
35°C (68 and 95°F).
covered with water and vigorously shaken. The presence of an
6.3 Cover the container and shake vigorously for one min.
oil sheen or oil drops on the surface is cause for rejection of the
supply being tested.
6.4 Remove the cover from the container and let it sit for 5
min.
6.5 Examine the surface of the water for oil droplets or oil
This practice is under the jurisdiction o
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