ASTM D2619-21
(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
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 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 method2 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, health, and environmental 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.
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.
General Information
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Standards Content (Sample)
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.
Designation: D2619 − 21
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. Scope* D974 Test Method for Acid and Base Number by Color-
2 Indicator Titration
1.1 This test method covers the determination of the
hydrolytic stability of petroleum or synthetic-based hydraulic
3. Summary of Test Method
fluids.
3.1 A copper test specimen and 75 g of test fluid plus 25 g
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 of water (or 100 g of a water-containing fluid) are sealed in a
100 g sample. In these cases, the person requesting the test needs to let the
pressure-type beverage bottle. The bottle is rotated, end for
test operator know that water is present.
end,for48 hinanovenat93 °C(200 °F).Layersareseparated
1.2 The values stated in SI units are to be regarded as the
and the weight change of the copper specimen is measured.
standard. The English units given in parentheses are provided
The acid number change of the fluid and acidity of the water
for information only.
layer are determined. (Warning—In addition to other
precautions, because this test method involves the use of a
1.3 This standard does not purport to address all of the
glass bottle that may contain approximately 200 kPa (2 atm) of
safety concerns, if any, associated with its use. It is the
air and water vapor at temperatures up to 93 °C, a full face
responsibility of the user of this standard to establish appro-
shield and heavy woven fabric gloves should be worn when
priate safety, health, and environmental practices and deter-
handling or working with the heated and sealed sample
mine the applicability of regulatory limitations prior to use.
container.)
Specific warning statements are given in 3.1, 6.1, 6.3, 6.9 and
Annex A1.
4. Significance and Use
1.4 This international standard was developed in accor-
4.1 This test method differentiates the relative stability of
dance with internationally recognized principles on standard-
hydraulic fluids in the presence of water under the conditions
ization established in the Decision on Principles for the
of the test. Hydrolytically unstable hydraulic fluids form acidic
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical and insoluble contaminants which can cause hydraulic system
malfunctions due to corrosion, valve sticking, or change in
Barriers to Trade (TBT) Committee.
viscosity of the fluid. The degree of correlation between this
2. Referenced Documents
test method and service performance has not been fully
3
determined.
2.1 ASTM Standards:
D130 Test Method for Corrosiveness to Copper from Petro-
5. Apparatus
leum Products by Copper Strip Test
5.1 Air Oven, convection, adjusted to 93 °C 6 0.5 °C
D664 Test Method for Acid Number of Petroleum Products
(200 °F 6 1 °F).
by Potentiometric Titration
4
5.2 Pressure-Type Beverage Bottles, 200 mL (7 oz), as
shown in Fig. 1. It is not essential that bottles conform exactly
1
This test method is under the jurisdiction of ASTM Committee D02 on
to the dimensions shown as long as they fit securely in the
Petroleum Products, Liquid Fuels, and Lubricantsand is the direct responsibility of
holders and caps do not leak. Bottles with straight sides and a
Subcommittee D02.N0 on Hydraulic Fluids.
Current edition approved May 1, 2021. Published June 2021. Originally narrower neck are also marketed for this application but there
approved in 1967. Last previous edition approved in 2014 as D2619 – 09 (2014).
are some reports of breakage during use as the copper coupon
DOI: 10.1520/D2619-21.
will move with greater velocity during the rotation.The curved
2
This test method is a modification of Federal Test Method Standard No. 791a,
sides help to slow the movement of the coupon.
Method 3457 for Hydrolytic Stability.
3
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
4
Standards volume information, refer to the standard’s Document Summary page on Bottles can be obtained from suppliers of the test apparatus or from beverage
the ASTM website. distributors.
*A Summary of Changes section appears at the end of this standard
Copyri
...
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: D2619 − 09 (Reapproved 2014) D2619 − 21
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. Scope Scope*
2
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 safety, health, and healthenvironmental 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.
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
3
2.1 ASTM Standards:
D130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
D664 Test Method for Acid Number of Petroleum Products by Potentiometric Titration
D974 Test Method for Acid and Base Number by Color-Indicator Titration
3. Summary of Test Method
3.1 A copper test specimen and 75 g of test fluid plus 25 g of water (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
the weight change of the copper specimen is measured. The acid number change of the fluid and acidity of the water layer are
determined. (Warning—In addition to other precautions, because this test method involves the use of a glass bottle that may
contain approximately 200 kPa (2 atm) of air and water vapor at temperatures up to 93 °C, a full face shield and heavy woven
fabric gloves should be worn when handling or working with the heated and sealed sample container.)
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricantsand is the direct responsibility of Subcommittee
D02.N0 on Hydraulic Fluids.
Current edition approved Oct. 1, 2014May 1, 2021. Published November 2014June 2021. Originally approved in 1967. Last previous edition approved in 20092014 as
D2619 – 09.D2619 – 09 (2014). DOI: 10.1520/D2619-09R14.10.1520/D2619-21.
2
This test method is a modification of Federal Test Method Standard No. 791a, Method 3457 for Hydrolytic Stability.
3
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D2619 − 21
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 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.
5. Apparatus
5.1 Air Oven, convection, adjusted to 93 °C 6 0.5 °C (200 °F 6 1 °F).
4
5.2 Pressure-Type Beverage Bottles, 200 mL (7 oz). 200 mL (7 oz), as shown in Fig. 1. It is not essential that bottles conform
exactly to the dimensions shown as
...
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