ASTM D1662-92(2002)
(Test Method)Standard Test Method for Active Sulfur in Cutting Oils
Standard Test Method for Active Sulfur in Cutting Oils
SCOPE
1.1 This test method covers the determination of active sulfur in cutting oils. This test method applies to sulfur reactive with copper powder at a temperature of 150°C (300°F) in cutting fluids containing both natural and added sulfur.
Note 1—It has not been established by ASTM as to how the active sulfur content thus determined may relate to field performance of the cutting fluid.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation:D1662–92 (Reapproved 2002)
Standard Test Method for
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Active Sulfur in Cutting Oils
This standard is issued under the fixed designation D 1662; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Significance and Use
1.1 This test method covers the determination of active 5.1 This test method measures the quantity of sulfur avail-
sulfur in cutting oils.This test method applies to sulfur reactive able to react with metallic surfaces to form solid lubricating
with copper powder at a temperature of 150°C (300°F) in aids at the temperature of the test. Rates of reaction are metal
cutting fluids containing both natural and added sulfur. type, temperature, and time dependent.
NOTE 1—It has not been established by ASTM as to how the active
6. Apparatus
sulfur content thus determined may relate to field performance of the
6.1 The apparatus shall be the same as that described inTest
cutting fluid.
Method D 129 in addition to the following:
1.2 The values stated in SI units are to be regarded as the
6.2 Stirrer, constructed of glass in the form of an invertedT.
standard. The values given in parentheses are for information
A flat blade, approximate length 25 mm, height 6 mm,
only.
thickness 1 mm, shall be attached to a glass rod 6 mm in
1.3 This standard does not purport to address all of the
diameter, in such a way that the blade is symmetrical with the
safety concerns, if any, associated with its use. It is the
rod and has its flat surface in the vertical plane. Alternatively,
responsibility of the user of this standard to establish appro-
a glass-coated magnetic stirring bar 9.5 by 34.9 mm 62mm
priate safety and health practices and determine the applica-
3 3
( ⁄8 by 1 ⁄8 in.) can be used.
bility of regulatory limitations prior to use.
6.3 Stirring Apparatus—An electric motor capable of main-
taining a speed of 500 6 25 rpm.Alternatively, when using the
2. Referenced Documents
glass-coated stirring bar, a combination magnetic stirrer-hot
2.1 ASTM Standards:
plate is required.
D 129 Test Method for Sulfur in Petroleum Products (Gen-
6.4 Hot Plate, electric, or other convenient heat source
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eral Bomb Method)
capable of maintaining the sample at a temperature of 150 6
D 130 Test Method for Detection of Copper Corrosion from
3°C (300 6 5°F).
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Petroleum Products by the Copper Strip Tarnish Test
6.5 Beaker, 200-mL, tall-form of heat-resistant glass, with a
pour-out spout.
3. Terminology
3.1 Definition of a Term Specific to This Standard:
7. Materials
3.1.1 active sulfur—the sulfur in a cutting fluid that will
7.1 The materials shall be the same as described in Test
react with metallic copper at a temperature of 149°C (300°F)
Method D 129 in addition to the following:
under the prescribed conditions.
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7.2 Copper Powder.
4. Summary of Test Method
8. Procedure
4.1 Aportion of the sample is treated with copper powder at
8.1 Determine the sulfur concentration of the sample to be
149°C(300°F).Thecopperpowderisfilteredfromthemixture.
tested in accordance with Test Method D 129.
Active sulfur is expressed as the difference between the sulfur
8.2 Place 50 6 2 g of sample in a 200-mL tall-form beaker,
contents of the sample, as determined by Test Method D 129
lowerthestirrertowithin5mmofthebottomofthebeakerand
before and after treatment with copper.
add 5 6 0.25 g of copper powder and heat to 150 6 2°C (300
6 5°F) while stirring at 500 6 25 rpm. If a magnetic stirrer is
1 used, rotate the stirring bar at 500 6 25 rpm.When 150 6 2°C
This test method is under the jurisdiction of ASTM Committee D02 on
(300 6 5°F) is reached, add an additional 5 6 0.25 g copper
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L0 on Industrial Lubricants.
Current edition approved Dec. 10, 2002. Published March 2003. Originally
approved in 1959. Last previous edition approved in 1997 as D 1662 – 92 (1997).
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This test method was prepared under the joint sponsorship of the American The following copper powders have been found satisfactory: Atlantic Flake
Society of Lubrication Engineers. Accepted by ASLE January 1969. Powder No. 5010, Fisher C-431, Copper Dust, and LaPine No. 72696 Copper
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Annual Book of ASTM Standards, Vol 05.01. Powder.
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D1662–92 (2002)
Active sulfur, wt % 5 A 2 B (1)
powder. Continue stirring at 150 6 2°C (300 6 5°F) for 30 6
1 min. At the end of this period, stop stirrin
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