ASTM D7393-16
(Practice)Standard Practice for Indicating Oil in Abrasives
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 the 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-AB 1, for recycled ferrous abrasives in SSPC-AB 2, for new ferrous abrasives in SSPC-AB 3, and for recyclable encapsulated abrasive media in SSPC-AB 4.
4.3 Other contaminants in abrasive such as chemical contaminants or particulate matter require other methods for detection such as Test Method D4940 for conductive-potential, ionic contaminants. Because Test Method D4940 specifies a different ratio of abrasive to water and requires the use of higher purity water, the solution resulting from the evaluation of the oil in abrasive shall not be used for the evaluation in accordance with 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, blast and paint shop or steel 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.
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Designation: D7393 − 16
Standard Practice for
1
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
1.1 This practice is used to determine the presence of oil in
4.1 Oil in abrasives can be transferred to the surface being
abrasives used for abrasive blast cleaning.
cleaned, thus contaminating it. This can cause film defects,
affect adhesion of the coating applied over it, and the ultimate
1.2 The procedure can be used in the laboratory, field, blast
performance of the coating system.
and paint shop or steel 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-AB 1, for recycled
standard. The values given in parentheses are for information
ferrous abrasives in SSPC-AB 2, for new ferrous abrasives in
only.
SSPC-AB 3, and for recyclable encapsulated abrasive media in
1.4 This standard does not purport to address all of the
SSPC-AB 4.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.3 Other contaminants in abrasive such as chemical con-
priate safety and health practices and determine the applica-
taminants or particulate matter require other methods for
bility of regulatory limitations prior to use.
detection such as Test Method D4940 for conductive-potential,
ionic contaminants. Because Test Method D4940 specifies a
2. Referenced Documents
different ratio of abrasive to water and requires the use of
2
higher purity water, the solution resulting from the evaluation
2.1 ASTM Standards:
of the oil in abrasive shall not be used for the evaluation in
D4940 Test Method for Conductimetric Analysis of Water
accordance with Test Method D4940.
Soluble Ionic Contamination of Blast Cleaning Abrasives
3
2.2 SSPC Standards:
5. Apparatus and Materials
SSPC-AB 1 Mineral and Slag Abrasives
5.1 Container—Clear jar or bottle capable of holding 250
SSPC-AB 2 Cleanliness of Recycled Ferrous MetallicAbra-
ml (8.5 fl oz) or more and with a lid that is capable of sealing
sive
SSPC-AB 3 Ferrous Metallic Abrasive the contents.
SSPC-AB 4 Recyclable Encapsulated Abrasive Media
5.2 Water—Potable.
3. Summary of Practice
6. Procedure
3.1 A sample of the abrasive is placed in a container,
6.1 Place a sample of the abrasive in a clean container to
covered with water and vigorously shaken. The presence of an
about half its height.
oil sheen or oil drops on the surface is cause for rejection of the
supply of abrasive being tested. 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
35°C (68 and 95°F).
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
6.3 Cover the container and shake vigorously for one min.
Related Coatings, Materials,
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7393 − 07 (Reapproved 2012) D7393 − 16
Standard Practice for
1
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
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 field, blast and paint shop or steel 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D4940 Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blast Cleaning Abrasives
3
2.2 SSPC Standards:
SSPC-AB1SSPC-AB 1 Mineral and Slag Abrasives
SSPC-AB2SSPC-AB 2 Cleanliness of Recycled Ferrous Metallic Abrasive
SSPC-AB3SSPC-AB 3 Ferrous Metallic Abrasive
SSPC-AB 4 Recyclable Encapsulated Abrasive Media
3. Summary of Practice
3.1 A sample of the abrasive is placed in a container, covered with water and vigorously shaken. The presence of an oil sheen
or oil drops on the surface is cause for rejection of the supply of abrasive being tested.
4. 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 the 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, SSPC-AB 1, for
recycled ferrous abrasives in SSPC-AB2, andSSPC-AB 2, for new ferrous abrasives in SSPC-AB3.SSPC-AB 3, and for recyclable
encapsulated abrasive media in SSPC-AB 4.
4.3 Other contaminants in abrasive such as chemical contaminants or particulate matter require other methods for detection such
as Test Method D4940 for conductive-potential, ionic contaminants. The Because Test Method D4940 specifies a different ratio
of abrasive to water is different for this test, so the solution from evaluating the and requires the use of higher purity water, the
solution resulting from the evaluation of the oil in abrasive shouldshall not be used for the evaluation in accordance with Test
Method D4940.
5. Apparatus and Materials
5.1 Container—Clear jar or bottle capable of holding 250 ml (8.5 fl oz) or more and with a lid that is capable of sealing the
contents.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.46 on Industrial Protective Coatings.
Current edition approved June 1, 2012July 1, 2016. Published August 2012August
...
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