ASTM D2619-09
(Test Method)Standard Test Method for Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle Method)
Standard Test Method for Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle Method)
SIGNIFICANCE AND USE
This test method differentiates the relative stability of hydraulic fluids in the presence of water under the conditions of the test. Hydrolytically unstable hydraulic fluids form acidic and insoluble contaminants which can cause hydraulic system malfunctions due to corrosion, valve sticking, or change in viscosity of the fluid. The degree of correlation between this test method and service performance has not been fully determined.
SCOPE
1.1 This test method covers the determination of the hydrolytic stability of petroleum or synthetic-based hydraulic fluids.
Note 1—Water-based or water-emulsion fluids can be evaluated by this test method, but they are run “as is.” Additional water is not added to the 100-g sample. In these cases, the person requesting the test needs to let the test operator know that water is present.
1.2 The values stated in SI units are to be regarded as the standard. The English units given in parentheses are provided 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. Specific warning statements are given in 3.1, 6.1, 6.3, 6.9 and Annex A1.
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Designation: D2619 − 09
StandardTest Method for
Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle
1
Method)
This standard is issued under the fixed designation D2619; 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 The acid number change of the fluid and acidity of the water
2 layer are determined. (Warning—In addition to other
1.1 This test method covers the determination of the
precautions, because this test method involves the use of a
hydrolytic stability of petroleum or synthetic-based hydraulic
glass bottle that may contain approximately 200 kPa (2 atm) of
fluids.
air and water vapor at temperatures up to 93 °C, a full face
NOTE 1—Water-based or water-emulsion fluids can be evaluated by this
shield and heavy woven fabric gloves should be worn when
test method, but they are run “as is.”Additional water is not added to the
100-gsample.Inthesecases,thepersonrequestingthetestneedstoletthe
handling or working with the heated and sealed sample
test operator know that water is present.
container.)
1.2 The values stated in SI units are to be regarded as the
standard. The English units given in parentheses are provided 4. Significance and Use
for information only.
4.1 This test method differentiates the relative stability of
1.3 This standard does not purport to address all of the
hydraulic fluids in the presence of water under the conditions
safety concerns, if any, associated with its use. It is the of the test. Hydrolytically unstable hydraulic fluids form acidic
responsibility of the user of this standard to establish appro-
and insoluble contaminants which can cause hydraulic system
priate safety and health practices and determine the applica- malfunctions due to corrosion, valve sticking, or change in
bility of regulatory limitations prior to use. Specific warning
viscosity of the fluid. The degree of correlation between this
statements are given in 3.1, 6.1, 6.3, 6.9 and Annex A1. test method and service performance has not been fully
determined.
2. Referenced Documents
3
5. Apparatus
2.1 ASTM Standards:
D130 Test Method for Corrosiveness to Copper from Petro-
5.1 Air Oven, convection, adjusted to 93 6 0.5 °C (200 6
4
leum Products by Copper Strip Test
1 °F).
D974 Test Method for Acid and Base Number by Color-
5
5.2 Pressure-Type Beverage Bottles, 200-mL (7-oz).
Indicator Titration
5.3 Capping Press, for bottles.
3. Summary of Test Method
5.4 Rotating Mechanism, for holding bottles and rotating
3.1 A copper test specimen and 75 g of test fluid plus 25 g
end over end at 5 r/min in oven.
of water (or 100 g of a water-containing fluid) are sealed in a
5.5 Büchner Funnel and Filter Flask.
pressure-type beverage bottle. The bottle is rotated, end for
5.6 Water Aspirator.
end,for48hinanovenat93 °C(200 °F).Layersareseparated
and the weight change of the copper specimen is measured.
5.7 Typewriter Brush.
5.8 Separatory Funnel, 125-mL.
1
This test method is under the jurisdiction of ASTM Committee D02 on
5.9 Balance, sensitive to 0.2 mg.
Petroleum Products and Lubricantsand is the direct responsibility of Subcommittee
5.10 Caps, for sealing bottles.
D02.N0.08 on Thermal Stability.
Current edition approved Dec. 1, 2009. Published February 2010. Originally
ϵ1
approved in 1967. Last previous edition approved in 2002 as D2619–95(2002) .
DOI: 10.1520/D2619-09.
2 4
This test method is a modification of Federal Test Method Standard No. 791a, The sole source of supply of the apparatus known to the committee at this time
Method 3457 for Hydrolytic Stability. is Falex Corp. 1020 Airpark Dr., Sugar Grove, IL 60554. If you are aware of
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or alternative suppliers, please provide this information to ASTM International
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Headquarters.Your comments will receive careful consideration at a meeting of the
1
Standards volume information, refer to the standard’s Document Summary page on responsible technical committee, which you may attend.
5
the ASTM website. Bottles can be obtained from beverage distributors.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2619 − 09
5.11 Inert Seal, for cap gasket, 0.127-mm (0.005-in.) thick
fluorocarbon seal.
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D2619 − 09
determination of water acidity will be conducted and a remark should be
6. Reagents and Materials
insertedintothetestreporttothiseffect.Ifth
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
´1
Designation:D2619–95 (Reapproved 2002) Designation:D2619–09
Standard Test Method for
Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle
1
Method)
This standard is issued under the fixed designation D2619; 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
´ NOTE—Warning notes were placed in the text editorially in May 2002.
1. Scope
2
1.1 This test method covers the determination of the hydrolytic stability of petroleum or synthetic-based hydraulic fluids.
NOTE1—Water-baseorwater-emulsionfluidscanbeevaluatedbythistestmethodbutarerun“asis.”Additionalwaterisnotaddedtothe100-gsample.
1.2The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are provided for
information only. 1—Water-based or water-emulsion fluids can be evaluated by this test method, but they are run “as is.”
Additional water is not added to the 100-g sample. In these cases, the person requesting the test needs to let the test operator know
that water is present.
1.2 The values stated in SI units are to be regarded as the standard. The English units given in parentheses are provided 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. Specific hazardwarning statements are given in 3.1, 6.1, 6.3, 6.46.9, and Annex A1.
2. Referenced Documents
3
2.1 ASTM Standards:
3
D445Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
D974 Test Method for Acid and Base Number by Color-Indicator Titration
3. Summary of Test Method
3.1 The sample of A copper test specimen and 75 g of test fluid plus 25 g of water and a copper test specimen (or 100 g of a
water-containing fluid) are sealed in a pressure-type beverage bottle.The bottle is rotated, end for end, for 48 h in an oven at 93 °C
(200 °F). Layers are separated, and insolubles are weighed. Weight the weight change of the copper specimen is measured.
Viscosity and The acid number changeschange of the fluid and acidity of the water layer are determined. (Warning—
InWarning—In addition to other precautions, because this test method involves the use of a glass bottle that may contain
approximately200kPa(2atm)ofairandwatervaporattemperaturesupto93 °C,afullfaceshieldandheavywovenfabricgloves
should be worn when handling or working with the heated and sealed sample container.)
4. Significance and Use
4.1 This test method differentiates the relative stability of hydraulic fluids in the presence of water under the conditions of the
test. Hydrolytically unstable hydraulic fluids form acidic and insoluble contaminants which can cause hydraulic system
malfunctionsduetocorrosion,valvesticking,orchangeinviscosityofthefluid.Thedegreeofcorrelationbetweenthistestmethod
and service performance has not been fully determined.
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.N0.08
on Thermal Stability.
Current edition approved Jan. 15, 1995. Published March 1995. Originally published as D2619–67. Last previous edition D2619–88(1994)
´1
Current edition approved Dec. 1, 2009. Published February 2010. Originally approved in 1967. Last previous edition approved in 2002 as D2619–95(2002) . DOI:
10.1520/D2619-95R02E01. DOI: 10.1520/D2619-09.
2
This test method is a modification of Federal Test Method Standard No. 791a, Method 3457 for Hydrolytic Stability.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
, Vol 05.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D2619–09
5. Apparatus
4
5.1 Air Oven, convection, adjusted to 93 6 0.5 °C (200 6 1 °F).
5
5.2 Pressure-Type Beverage Bottles, 200
...
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