ASTM D3342-90(2017)
(Test Method)Standard Test Method for Dispersion Stability of New (Unused) Rolling Oil Dispersions in Water
Standard Test Method for Dispersion Stability of New (Unused) Rolling Oil Dispersions in Water
SIGNIFICANCE AND USE
4.1 Each steel rolling mill and operation is particular as to the degree of stability of dispersion required to effect maximum efficiency of lubrication and cooling. This test method is designed to differentiate between coolants for this use. A similar situation is encountered with aluminum rolling mills, but significant differences in designated settling times be required outside the parameter of times used herein. Precision data have only been obtained relative to metastable dispersions for steel mill rolling oils.
SCOPE
1.1 This test method covers determination of the dispersion stability of dispersions of rolling oils in water. It is applicable to oils whose water dispersions are stable under moderate agitation, but which show at least some separation upon standing quiescent for 1/2 h, by rising of the oil particles.
1.2 The values stated in SI 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.2, A2.1, and A2.5.
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.
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Designation: D3342 − 90 (Reapproved 2017)
Standard Test Method for
Dispersion Stability of New (Unused) Rolling Oil
Dispersions in Water
This standard is issued under the fixed designation D3342; 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 resulting decrease in oil concentration at a specified point near
thebottomofthecontainerismeasuredatcertaintimeintervals
1.1 This test method covers determination of the dispersion
and plotted.
stability of dispersions of rolling oils in water. It is applicable
to oils whose water dispersions are stable under moderate
4. Significance and Use
agitation, but which show at least some separation upon
standing quiescent for ⁄2 h, by rising of the oil particles. 4.1 Each steel rolling mill and operation is particular as to
the degree of stability of dispersion required to effect maxi-
1.2 The values stated in SI units are to be regarded as
mum efficiency of lubrication and cooling. This test method is
standard. No other units of measurement are included in this
designed to differentiate between coolants for this use. A
standard.
similar situation is encountered with aluminum rolling mills,
1.3 This standard does not purport to address all of the
but significant differences in designated settling times be
safety concerns, if any, associated with its use. It is the
required outside the parameter of times used herein. Precision
responsibility of the user of this standard to establish appro-
data have only been obtained relative to metastable dispersions
priate safety and health practices and determine the applica-
for steel mill rolling oils.
bility of regulatory limitations prior to use. For specific
warning statements, see 6.2, A2.1, and A2.5.
5. Apparatus
1.4 This international standard was developed in accor-
3,4
5.1 Mixing Beaker, 5800 mL capacity, made of stainless
dance with internationally recognized principles on standard-
steel, modified as shown in Annex A2.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5.2 Combination Agitator and Temperature Control
4,5
mendations issued by the World Trade Organization Technical Device.
Barriers to Trade (TBT) Committee.
4,6
5.3 Babcock Centrifuge Bottles —The 165 mm cream test
bottle, with 5 mL-neck permitting oil concentration readings
2. Referenced Documents
from 0 % to 10 % is preferred. These bottles should be marked
2.1 ASTM Standards: for filling to the 50 mL level which will normally be found
D1126 Test Method for Hardness in Water
close to the junction of body and neck. Sulfonation bottles may
D1293 Test Methods for pH of Water also be used.
5.4 Centrifuge, capable of whirling the Babcock bottles at
3. Summary of Test Method
sufficient speed to give a clean separation of oil and water
3.1 The rolling oil is dispersed in a standard test water, in a
under the test conditions. A centrifuge giving a relative
standard container, under standard conditions of time,
centrifugal force (rcf) of 5009 at the bottle tips has been found
agitation, and concentration.When the agitation is stopped, the
to give good separations in 10 min.
1 3
This test method is under the jurisdiction of ASTM Committee D02 on The sole source of supply of the apparatus (beaker #2-584F) known to the
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of committee at this time is Fisher Scientific.
Subcommittee D02.L0.04 on Metal Deformation Fluids and Lubricants. If you are aware of alternative suppliers, please provide this information to
CurrenteditionapprovedJune1,2017.PublishedJuly2017.Originallyapproved ASTM International Headquarters. Your comments will receive careful consider-
in 1990. Last previous edition approved in 2012 as D3342 – 90 (2012). ation at a meeting of the responsible technical committee, which you may attend.
DOI:10.1520/D3342-90R17. The sole source of supply of the apparatus (the Porta-temp) known to the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or committee at this time is Precision Scientific Co.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM The sole source of supply of the apparatus (cream test bottle No. 12-705 or
Standards volume information, refer to the standard’s Document Summary page on sulfonation bottle No. 6-904) known to the committee at this time is Fisher
the ASTM website. Scientific.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3342 − 90 (2017)
5.5 To calculate the rpm required to achieve the stated rcf, the centrifuge for 10 min, or until a clean separation is
use the following formula: obtained. It may be necessary to use a different mineral acid or
to heat the filled Babcock bottles to facilitate a clean separa-
rpm 5 1335=rcf/d (1)
tion. (If however, none of these methods results in a clean
separation, the test method cannot be considered applicable for
where:
that particular oil.) Read the difference in levels in terms of the
rcf = relative centrifugal force,
Babcockbottlecalibrationscaleatthetopandbottomoftheoil
d = diameter of swing measured between tips of opposite
layer.
tubes when in rotating position, mm, and
rpm = revolutions per minute.
8. Calculation
5.6 Stop Watch, or similar timing device.
8.1 For the sample bottle taken as a control during agitation,
6. Reagents
calculate the percent of oil found. Since the calibrations on the
neck of the Babcock bottle usually range from 0 to 50, and
6.1 Buffered Synthetic Hard Water, prepared in accordance
correspond to 10 % oil in this test method, the difference in
with Annex A2.
scale reading between the top and bottom of the oil layer
6.2 Sulfuric Acid, 30 % by volume in water. Lower acid
divided by 5 equals the percent oil. If this result is not close to
concentrations may be used if clean separations are obtained.
5 %, the results are suspect until repeat runs verify the
(Warning—Sulfuric acid is poison, corrosive, and a strong
reproducibility of the discrepancy. Significant amounts of
oxidizer.)
water soluble compounds in the oil sample might explain low
concentrations, for example. If, by the end of the 30 min
7. Procedure
agitation period, any significant amount of free oil or inverted
7.1 The flow rate of the combination agitator and tempera-
emulsion remains floating on the surface without being repeat-
ture control device should be between 3500 mL⁄min and
edly drawn down into the water layer, the oil is probably too
4500 mL⁄min. The flow rate should be measured with a piece
difficult to disperse for the test method to be applicable.
of 6.35 mm inside diameter bore plastic tubing temporarily
8.2 For each sample taken after agitation was stopped,
attached to the pump outlet and removed after this measure-
calculate the amount of oil found as a percent of the amount
ment. During the test, do not use attachments such as tubing,
found in the sample.
stopcocks, pinch clamps, etc. on the pump outlet.
8.3 A single number used to describe the rolling oil emul-
7.2 Add 4275 mL of test water to the beaker, install the
sion stability is the slope of a straight line, fit by the method of
agitator-temperature control device, and adjust it for 60 °C
least squares, to the base ten logarithms of both time, in
temperature. When the water reaches this temperature, add
minutes, and the measured concentrations in percent. In
225 mL of the rol
...
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: D3342 − 90 (Reapproved 2012) D3342 − 90 (Reapproved 2017)
Standard Test Method for
Dispersion Stability of New (Unused) Rolling Oil
Dispersions in Water
This standard is issued under the fixed designation D3342; 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 test method covers determination of the dispersion stability of dispersions of rolling oils in water. It is applicable to
oils whose water dispersions are stable under moderate agitation, but which show at least some separation upon standing quiescent
for ⁄2 h, h, by rising of the oil particles.
1.2 The values stated in SI 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 and health practices and determine the applicability of regulatory
limitations prior to use. For specific warning statements, see 6.2, A2.1, and A2.5.
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.
2. Referenced Documents
2.1 ASTM Standards:
D1126 Test Method for Hardness in Water
D1293 Test Methods for pH of Water
3. Summary of Test Method
3.1 The rolling oil is dispersed in a standard test water, in a standard container, under standard conditions of time, agitation, and
concentration. When the agitation is stopped, the resulting decrease in oil concentration at a specified point near the bottom of the
container is measured at certain time intervals and plotted.
4. Significance and Use
4.1 Each steel rolling mill and operation is particular as to the degree of stability of dispersion required to effect maximum
efficiency of lubrication and cooling. This test method is designed to differentiate between coolants for this use. A similar situation
is encountered with aluminum rolling mills, but significant differences in designated settling times be required outside the
parameter of times used herein. Precision data have only been obtained relative to metastable dispersions for steel mill rolling oils.
5. Apparatus
3,4
5.1 Mixing Beaker, 5800 mL 5800 mL capacity, made of stainless steel, modified as shown in Annex A2.
4,5
5.2 Combination Agitator and Temperature Control Device.
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.L0.04 on Metal Deformation Fluids and Lubricants.
Current edition approved April 15, 2012June 1, 2017. Published April 2012July 2017. Originally approved in 1990. Last previous edition approved in 20062012 as
D3342–90(2006).D3342 – 90 (2012). DOI:10.1520/D3342-90R12.DOI:10.1520/D3342-90R17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The sole source of supply of the apparatus (beaker #2-584F) known to the committee at this time is Fisher Scientific.
If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will receive careful consideration at a
meeting of the responsible technical committee, which you may attend.
The sole source of supply of the apparatus (the Porta-temp) known to the committee at this time is Precision Scientific Co.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3342 − 90 (2017)
4,6
5.3 Babcock Centrifuge Bottles —The 165-mm165 mm cream test bottle, with 5 mL-neck 5 mL-neck permitting oil
concentration readings from 00 % to 10 % is preferred. These bottles should be marked for filling to the 50-mL50 mL level which
will normally be found close to the junction of body and neck. Sulfonation bottles may also be used.
5.4 Centrifuge, capable of whirling the Babcock bottles at sufficient speed to give a clean separation of oil and water under the
test conditions. A centrifuge giving a relative centrifugal force (rcf) of 5009 at the bottle tips has been found to give good
separations in 10 min.
5.5 To calculate the rpm required to achieve the stated rcf, use the following formula:
rpm 5 1335=rcf/d (1)
where:
where:
rcf = relative centrifugal force,
d = diameter of swing measured between tips of opposite tubes when in rotating position, mm, and
rpm = revolutions per minute.
5.6 Stop Watch, or similar timing device.
6. Reagents
6.1 Buffered Synthetic Hard Water, prepared in accordance with Annex A2.
6.2 Sulfuric Acid, 30 vol %30 % by volume in water. Lower acid concentrations may be used if clean separations are obtained.
(Warning—Sulfuric acid is poison, corrosive, and a strong oxidizer.)
7. Procedure
7.1 The flow rate of the combination agitator and temperature control device should be between 35003500 mL ⁄min and
45004500 mL mL/min. ⁄min. The flow rate should be measured with a piece of 6.35-mm6.35 mm inside diameter bore plastic
tubing temporarily attached to the pump outlet and removed after this measurement. During the test, do not use attachments such
as tubing, stopcocks, pinch clamps, etc. on the pump outlet.
7.2 Add 4275 mL 4275 mL of test water to the beaker, install the agitator-temperature control device, and adjust it for
60°C60 °C temperature. When the water reaches this temperature, add 225 mL of the rolling oil to be tested. (The oil sample should
be sufficiently agitated to assure complete mixing of oil components. With most materials, sufficient heat to melt all of the
components will also be required, however, at no time should the temperature exceed 60°C.)60 °C.) Continue controlled
temperature agitation for 30 min.30 min.
7.3 While agitation continues, fill one Babcock bottle for an emulsion concentration control test, as follows: Open the pinch
clamp on the beaker sample tap for 22 s to 3 s. 3 s. Discard about 20 mL of emulsion to flush the tap, and attempt to come as cleanly
as possible to the end. Close the pinch clamp, place the hose tip in a Babcock bottle, and fill it at a rapid flow rate to the
50-mL50 mL mark.
7.4 Stop agitation and restart the stop watch at zero time. Fill Babcock bottles as described above at 30 s and 1, 2, 4, 8, 16, and
32 min 30 s and 1 min, 2 min, 4 min, 8 min, 16 min, and 32 min elapsed time. It is permissible to stop sampling sooner or later
(such as at 1616 min or 64 min) 64 min) if such data are desired, but earlier sample times may not be omitted even for very stable
emulsions, because the sampling process slightly affects further settling rates. For each sample, purge the sample tap several
seconds ahead of time so that filling the Babcock bottle starts at the correct time.
7.5 Fill each Babcock bottle to the upper graduation line with 30 vol% 30 % by volume sulfuric acid. Swirl while filling. Spin
in the centrifuge for 10 min, or until a clean separation is obtained. It may be necessary to use a different mineral acid or to heat
the filled Babcock bottles to facilitate a clean separation. (If however, none of these methods results in a clean separation, the test
method cannot be considered applicable for that particular oil.) Read the difference
...
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