Standard Test Method for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry

SCOPE
1.1 This test method covers the procedure for determining the oxidative properties of hydrocarbons by differential scanning calorimetry or pressure differential scanning calorimetry and is applicable to hydrocarbons that oxidize exothermically in their analyzed form.
1.2 Computer or electronic-based instruments, techniques or data treatment equivalent to this test method may also be used.
Note 1--Since all electronic data treatments are not equivalent, the user shall verify equivalency to this method.
1.3 Test Method A--A differential scanning calorimeter (DSC) is used at ambient pressure, for example, about 100 kPa of oxygen.
1.4 Test Method B-- A pressure DSC (PDSC) is used at high pressure, for example, 3.5 MPa (500 psig) oxygen.
1.5 SI values are the standard.
1.6 This test method is related to ISO 11357-6 but is different in technical content.
1.7 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 precautionary statements are given in Note 2 and Note 13.

General Information

Status
Historical
Publication Date
09-May-2000
Current Stage
Ref Project

Relations

Buy Standard

Standard
ASTM E1858-00 - Standard Test Method for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry
English language
5 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 1858 – 00
Standard Test Method for
Determining Oxidation Induction Time of Hydrocarbons by
1
Differential Scanning Calorimetry
This standard is issued under the fixed designation E 1858; 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.
4
1. Scope munications Wire and Cable
D 5482 Test Method for Oxidation Induction Time of Lu-
1.1 This test method covers the procedure for determining
bricating Greases by Pressure Differential Scanning Calo-
the oxidative properties of hydrocarbons by differential scan-
5
rimetry
ning calorimetry or pressure differential scanning calorimetry
D 5885 Test Method for Oxidative Induction Time of Poly-
and is applicable to hydrocarbons that oxidize exothermically
olefin Geosynthics By High Pressure Differential Scanning
in their analyzed form.
6
Calorimetry
1.2 Computer or electronic-based instruments, techniques
D 6186 Test Method for Oxidation Induction Time of Lu-
or data treatment equivalent to this test method may also be
bricating Oils by Pressure Differential Scanning Calorim-
used.
etry (PDSC) Polyolefin Geosynthics By High Pressure
NOTE 1—Since all electronic data treatments are not equivalent, the 7
Differential Scanning Calorimetry
user shall verify equivalency to this method.
8
E 473 Terminology Relating to Thermal Analysis
1.3 Test Method A— A differential scanning calorimeter
E 691 Practice for Conducting and Interlaboratory Study To
8
(DSC) is used at ambient pressure, for example, about 100 kPa
Determine the Precision of a Test Method
of oxygen.
E 967 Practice for Temperature Calibration of Differential
8
1.4 Test Method B— A pressure DSC (PDSC) is used at high
Scanning Calorimeters
pressure, for example, 3.5 MPa (500 psig) oxygen.
2.2 ISO Standard:
1.5 SI values are the standard.
ISO 11357–6 Plastice-Differential Scanning Calorimetry
9
1.6 This test method is related to ISO 11357–6 but is
(DSC) — Part 6: Oxidation Induction Time
different in technical content.
3. Terminology
1.7 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 Specific technical terms used in this test method are
priate safety and health practices and determine the applica-
given in Terminology E 473.
bility of regulatory limitations prior to use. Specific precau-
4. Summary of Test Method
tionary statements are given in Note 6 and Note 13.
4.1 The test specimen in an aluminum pan and the reference
2. Referenced Documents
aluminum pan are heated to a specified constant test tempera-
2.1 ASTM Standards:
ture in an oxygen environment. Heat flow out of the specimen
D 3350 Specification for Polyethylene Plastic Pipe and
is monitored at an isothermal temperature until the oxidative
2
Fitting Materials
reaction is manifested by heat evolution on the thermal curve.
D 3895 Test Method for Oxidative-Induction Time of Poly-
The oxidative induction time (OIT), a relative measure of
3
olefins by Differential Scanning Calorimetry
oxidative stability at the test temperature, is determined from
D 4565 Test Method for Physical Environmental Perfor-
data recorded during the isothermal test. The OIT measurement
mance Properties of Insulations and Jackets for Telecom-
is initiated upon reaching the isothermal test temperature.
4.2 For some particularly stable materials, the OIT may be
quite long (> 120 min) at the specified elevated temperatures of
1
This test method is under the direct jurisdiction of Committee E37 on Thermal
Measurements and is the direct responsibility of Subcommittee E37.01 on Test
4
Methods and Recommended Practices. Annual Book of ASTM Standards, Vol 10.02.
5
Current edition approved May 10, 2000. Published August 2000. Originally Annual Book of ASTM Standards, Vol 05.03.
6
published as E 1858–97. Last previous edition E 1858–97. Annual Book of ASTM Standards,, Vol 04.09.
2 7
Annual Book of ASTM Standards, Vol 08.03. Annual Book of ASTM Standards, Vol 05.04.
3 8
Annual Book of ASTM Standards, Vol 08.02. Annual Book of ASTM Standards, Vol 14.02.
9
Available from ANSI, 11 W. 42nd Street, 13th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
E 1858
the experiment. Under these circumstances, the OIT may be of at
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.