ASTM D3455-11

Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin

SIGNIFICANCE AND USE
The magnitude of the changes in the electrical properties of the insulating oil are of importance in determining the contamination of the oil by the test specimen.
Physical and chemical changes in the oil such as color, interfacial tension and acidity, also indicate solubility or other adverse effects of the test specimen on the oil.
Physical changes of the test specimen such as hardness, swelling, and discoloration show the effect of the oil on the test specimen and are used to determine the suitability of the material for use in insulating oil.
A material meeting the criteria recommended does not necessarily indicate suitability for use in electrical equipment. Other properties must also be considered. Additionally, certain materials containing additives may meet the requirements of these test methods, yet be unsatisfactory when subjected to longer term evaluations. Examples of such materials are polyvinyl chloride (PVC) based compounds, nylon and elastomeric compounds.
SCOPE
1.1 These test methods cover screening for the compatibility of materials of construction with electrical insulating oil for use in electrical equipment.
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 problems, 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.

General Information

• Status: Historical
• Publication Date: 31-May-2011
• ICS: 29.040.10 - Insulating oils
• Technical Committee: D27 - Electrical Insulating Liquids and Gases
• Drafting Committee: D27.06 - Chemical Test

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3455 − 11
Standard Test Methods for
Compatibility of Construction Material with Electrical
1
Insulating Oil of Petroleum Origin
This standard is issued under the fixed designation D3455; 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 3. Significance and Use
3.1 Themagnitudeofthechangesintheelectricalproperties
1.1 Thesetestmethodscoverscreeningforthecompatibility
of the insulating oil are of importance in determining the
ofmaterialsofconstructionwithelectricalinsulatingoilforuse
contamination of the oil by the test specimen.
in electrical equipment.
3.2 Physical and chemical changes in the oil such as color,
1.2 The values stated in SI units are to be regarded as
interfacial tension and acidity, also indicate solubility or other
standard. No other units of measurement are included in this
adverse effects of the test specimen on the oil.
standard.
3.3 Physical changes of the test specimen such as hardness,
1.3 This standard does not purport to address all of the
swelling, and discoloration show the effect of the oil on the test
safety problems, if any, associated with its use. It is the
specimen and are used to determine the suitability of the
responsibility of the user of this standard to establish appro-
material for use in insulating oil.
priate safety and health practices and determine the applica-
3.4 A material meeting the criteria recommended does not
bility of regulatory limitations prior to use.
necessarily indicate suitability for use in electrical equipment.
Other properties must also be considered.Additionally, certain
2. Referenced Documents
materials containing additives may meet the requirements of
2
2.1 ASTM Standards:
these test methods, yet be unsatisfactory when subjected to
D877 Test Method for Dielectric Breakdown Voltage of
longer term evaluations. Examples of such materials are
Insulating Liquids Using Disk Electrodes
polyvinyl chloride (PVC) based compounds, nylon and elasto-
D924 Test Method for Dissipation Factor (or Power Factor)
meric compounds.
and Relative Permittivity (Dielectric Constant) of Electri-
cal Insulating Liquids
4. Apparatus
D971 Test Method for Interfacial Tension of Oil Against
4.1 Sample-Handling Apparatus:
Water by the Ring Method
4.1.1 Oven, forced-draft, adjustable to 100 6 1°C, and a
D974 Test Method for Acid and Base Number by Color-
drying oven, adjustable to 105 6 5°C.
Indicator Titration
4.1.2 Glass Containers, 1-L, fitted with glass or aluminum
D1500 Test Method forASTM Color of Petroleum Products
foil covers.
(ASTM Color Scale)
NOTE 1—Other materials have been found to be suitable as covers.
D2413 Practice for Preparation of Insulating Paper and
Board Impregnated with a Liquid Dielectric
4.2 Sample-Testing Apparatus:
D3487 Specification for Mineral Insulating Oil Used in 4.2.1 Tensile Strength—As specified in appropriate test
Electrical Apparatus method.
4.2.2 Hardness—As specified in appropriate test method.
4.2.3 Dimensional Change—Micrometer and caliper.
4.2.4 Weight Change—Analytical balance.
1
These test methods are under the jurisdiction of ASTM Committee D27 on
Electrical Insulating Liquids and Gasesand are the direct responsibility of Subcom-
mittee D27.06 on Chemical Test.
5. Preparation of Test Specimen
CurrenteditionapprovedJune1,2011.PublishedJuly2011.Originallyapproved
5.1 Test specimen size shall be such that the ratio of surface
in 1975. Last previous edition approved in 2002 as D3455 – 2002 which was
withdrawn January 2011 and reinstated in June 2011. DOI: 10.1520/D3455-11.
area to oil volume is four times as large as the ratio encoun-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
teredinnormaluseinelectricalequipmentunlessthereissome
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
special reason for using a different ratio (Note 2). Some
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. suggested ratios are as follows:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3455 − 11
5.1.1 If the test specimen can be measured, no less than 52 7.2 The following tests on all oil specimens are suggested:
2
cm are used with each 800 mL of oil.
7.2.1 Interfacial Tension—Test Method D971.
5.1.2 If the test specimen is insoluble in oil and the surface
7.2.2 Neutralization Number—Test Method D974.
area cannot be measured, the test specimen shall be used in the
7.2.3 Dielectric Strength—Test Method
...

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:D3455–02 Designation:D3455–11
Standard Test Methods for
Compatibility of Construction Material with Electrical
1
Insulating Oil of Petroleum Origin
This standard is issued under the fixed designation D3455; 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 These test methods cover screening for the compatibility of materials of construction with electrical insulating oil for use
in electrical equipment.
1.2
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 problems, 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:
D877 Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes
D924 Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical
Insulating Liquids
D971 Test Method for Interfacial Tension of Oil Against Water by the Ring Method
D974 Test Method for Acid and Base Number by Color-Indicator Titration
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D2413 Practice for Preparation of Insulating Paper and Board Impregnated with a Liquid Dielectric
D3487 Specification for Mineral Insulating Oil Used in Electrical Apparatus
3. Significance and Use
3.1 The magnitude of the changes in the electrical properties of the insulating oil are of importance in determining the
contamination of the oil by the test specimen.
3.2 Physical and chemical changes in the oil such as color, interfacial tension and acidity, also indicate solubility or other
adverse effects of the test specimen on the oil.
3.3 Physical changes of the test specimen such as hardness, swelling, and discoloration show the effect of the oil on the test
specimen and are used to determine the suitability of the material for use in insulating oil.
3.4 Amaterial meeting the criteria recommended does not necessarily indicate suitability for use in electrical equipment. Other
properties must also be considered. Additionally, certain materials containing additives may meet the requirements of these test
methods, yet be unsatisfactory when subjected to longer term evaluations. Examples of such materials are polyvinyl chloride
(PVC) based compounds, nylon and elastomeric compounds.
4. Apparatus
4.1 Sample-Handling Apparatus:
4.1.1 Oven, forced-draft, adjustable to 100 6 1°C, and a drying oven, adjustable to 105 6 5°C.
4.1.2 Glass Containers, 1-L, fitted with glass or aluminum foil covers.
NOTE 1—Other materials have been found to be suitable as covers.
1
These test methods are under the jurisdiction of ASTM Committee D27 on Electrical Insulating Liquids and Gases and are the direct responsibility of Subcommittee
D27.06 on Chemical Tests.
Current edition approved Oct. 10, 2002. Published December 2002. Originally approved in 1975. Last previous edition approved in 1989 as D3455–89. DOI:
10.1520/D3455-02.on Chemical Test.
Current edition approved June 1, 2011. Published July 2011. Originally approved in 1975. Last previous edition approved in 2002 as D3455 – 2002 which was withdrawn
January 2011 and reinstated in June 2011. DOI: 10.1520/D3455-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
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.
1

---------------------- Page: 1 ----------------------
D3455–11
4.2 Sample-Testing Apparatus:
4.2.1 Tensile Strength—As specified in appropriate test method.
4.2.2 Hardness—As specified in appropriate test method.
4.2.3 Dimensional Change—Micrometer and caliper.
4.2.4 Weight Change—Analytical balance.
5. Preparation of Test Specimen
5.1 Test specimen size shall be such that the ratio of surface area to oil volume is four times as large as the ratio encountered
in normal use in electrical equipment unless there i
...