iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM E1858-23

(Test Method)

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

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

SIGNIFICANCE AND USE
5.1 Oxidative induction time is a relative measure of the degree of oxidative stability of the material evaluated at the isothermal temperature of the test. The presence, quantity or effectiveness of antioxidants may be determined by this method. The OIT values thus obtained may be compared from one hydrocarbon to another or to a reference material to obtain relative oxidative stability information.  
5.2 Typical uses include the oxidative stability of edible oils and fats (oxidative rancidity), lubricants, greases, and polyolefins.
SCOPE
1.1 These test methods describe the determination of 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 Test Method A—A differential scanning calorimeter (DSC) is used at ambient pressure, for example, about 100 kPa of oxygen.  
1.3 Test Method B—A pressure DSC (PDSC) is used at high pressure, for example, 3.5 MPa (500 psig) oxygen.  
1.4 Units—The values stated in SI units are to be regarded as standard. Imperial units are provided for user convenience and are not the standard.  
1.5 These test methods are related to ISO 11357–6 but is different in technical content. These test methods are related to CEC L-85–T but includes additional experimental conditions.  
1.6 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 precautionary statements are given in 7.4 and 12.10.  
1.7 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

Status
Published
Publication Date
14-Mar-2023
ICS
71.080.01 - Organic chemicals in general
Technical Committee
E37 - Thermal Measurements
Drafting Committee
E37.01 - Calorimetry and Mass Loss
Current Stage
Ref Project

Relations

Refers
ASTM D5482-20 - Standard Test Method for Vapor Pressure of Petroleum Products and Liquid Fuels (Mini Method—Atmospheric)
Effective Date
01-May-2020

Buy Standard

ASTM E1858-23 - Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning CalorimetryASTM E1858-23 - Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry
PreviousNext
Standard
ASTM E1858-23 - Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry
English language
6 pages
sale 15% off
Preview
sale 15% off
Preview
REDLINE ASTM E1858-23 - Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning CalorimetryREDLINE ASTM E1858-23 - Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry
PreviousNext
Standard
REDLINE ASTM E1858-23 - Standard Test Methods for Determining Oxidation Induction Time of Hydrocarbons by Differential Scanning Calorimetry
English language
6 pages
sale 15% off
Preview
sale 15% off
Preview

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: E1858 − 23
Standard Test Methods for
Determining Oxidation Induction Time of Hydrocarbons by
1
Differential Scanning Calorimetry
This standard is issued under the fixed designation E1858; 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 2. Referenced Documents
2
1.1 These test methods describe the determination of the 2.1 ASTM Standards:
oxidative properties of hydrocarbons by differential scanning D3350 Specification for Polyethylene Plastics Pipe and Fit-
calorimetry or pressure differential scanning calorimetry and is tings Materials
applicable to hydrocarbons that oxidize exothermically in their D3895 Test Method for Oxidative-Induction Time of Poly-
analyzed form. olefins by Differential Scanning Calorimetry
D4565 Test Methods for Physical and Environmental Per-
1.2 Test Method A—A differential scanning calorimeter
formance Properties of Insulations and Jackets for Tele-
(DSC) is used at ambient pressure, for example, about 100 kPa
communications Wire and Cable
of oxygen.
D5482 Test Method for Vapor Pressure of Petroleum Prod-
1.3 Test Method B—A pressure DSC (PDSC) is used at high
ucts and Liquid Fuels (Mini Method—Atmospheric)
pressure, for example, 3.5 MPa (500 psig) oxygen.
D5885/D5885M Test Method for Oxidative Induction Time
1.4 Units—The values stated in SI units are to be regarded of Polyolefin Geosynthetics by High-Pressure Differential
Scanning Calorimetry
as standard. Imperial units are provided for user convenience
and are not the standard. D6186 Test Method for Oxidation Induction Time of Lubri-
cating Oils by Pressure Differential Scanning Calorimetry
1.5 These test methods are related to ISO 11357–6 but is
(PDSC)
different in technical content. These test methods are related to
E473 Terminology Relating to Thermal Analysis and Rhe-
CEC L-85–T but includes additional experimental conditions.
ology
1.6 This standard does not purport to address all of the
E691 Practice for Conducting an Interlaboratory Study to
safety concerns, if any, associated with its use. It is the
Determine the Precision of a Test Method
responsibility of the user of this standard to establish appro-
E967 Test Method for Temperature Calibration of Differen-
priate safety, health, and environmental practices and deter-
tial Scanning Calorimeters and Differential Thermal Ana-
mine the applicability of regulatory limitations prior to use.
lyzers
Specific precautionary statements are given in 7.4 and 12.10.
E1860 Test Method for Elapsed Time Calibration of Ther-
1.7 This international standard was developed in accor-
mal Analyzers
dance with internationally recognized principles on standard-
E3142 Test Method for Thermal Lag of Thermal Analysis
ization established in the Decision on Principles for the
Apparatus
Development of International Standards, Guides and Recom-
2.2 Other Standards:
mendations issued by the World Trade Organization Technical
ISO 11357–6 Plastice-Differential Scanning Calorimetry
Barriers to Trade (TBT) Committee.
(DSC) — Part 6: Determination of Oxidation Induction
1
These test methods are under the direct jurisdiction of Committee E37 on
Thermal Measurements and is the direct responsibility of Subcommittee E37.01 on
2
Calorimetry and Mass Loss. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 15, 2023. Published April 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ε1
approved in 1997. Last previous edition approved in 2015 as E1858 – 08 (2015) . Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/E1858-23. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1858 − 23
Time (Isothermal OIT) and Oxidation Induction Tempera- method. The OIT values thus obtained may be compared from
3
ture (Dynamic OIT) one hydrocarbon to another or to a reference material to obtain
CEC L-85–T-99 Oxidative Stability of Lubricants Measured relative oxidative stability information.
4
by PDSC
5.2 Typical uses include the oxidative stability of edible oils
and fats (oxidative rancidity), lubricants, greases, and polyole-
3. Terminology
fins.
3.1 Definitions:
3.1.1 Specific technical terms used in these test methods are
6. Interferences
given in Terminology E473, includin
...

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.
´1
Designation: E1858 − 08 (Reapproved 2015) E1858 − 23
Standard Test Methods for
Determining Oxidation Induction Time of Hydrocarbons by
1
Differential Scanning Calorimetry
This standard is issued under the fixed designation E1858; 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
ε NOTE—Warning notes were editorially updated throughout in May 2015.
1. Scope
1.1 These test methods describe the determination of 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 Test Method A—A differential scanning calorimeter (DSC)(DSC) is used at ambient pressure, for example, about 100 kPa of
oxygen.
1.3 Test Method B—A pressure DSC (PDSC)(PDSC) is used at high pressure, for example, 3.5 MPa (500 psig) oxygen.
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this Imperial
units are provided for user convenience and are not the standard.
1.5 These test methods are related to ISO 11357–6 but is different in technical content. These test methods are related to CEC
L-85–T but includes additional experimental conditions.
1.6 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 healthsafety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 6.47.4 and 11.1012.10.
1.7 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
2.1 ASTM Standards:
D3350 Specification for Polyethylene Plastics Pipe and Fittings Materials
D3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
D4565 Test Methods for Physical and Environmental Performance Properties of Insulations and Jackets for Telecommunications
Wire and Cable
1
These test methods are under the direct jurisdiction of Committee E37 on Thermal Measurements and is the direct responsibility of Subcommittee E37.01 on Calorimetry
and Mass Loss.
Current edition approved May 1, 2015March 15, 2023. Published May 2015April 2023. Originally approved in 1997. Last previous edition approved in 20082015 as
ε1
E1858 – 08.E1858 – 08 (2015) . DOI: 10.1520/E1858-08R15E01.10.1520/E1858-23.
2
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1858 − 23
D5482 Test Method for Vapor Pressure of Petroleum Products and Liquid Fuels (Mini Method—Atmospheric)
D5885D5885/D5885M Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by High-Pressure Differential
Scanning Calorimetry
D6186 Test Method for Oxidation Induction Time of Lubricating Oils by Pressure Differential Scanning Calorimetry (PDSC)
E473 Terminology Relating to Thermal Analysis and Rheology
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E967 Test Method for Temperature Calibration of Differential Scanning Calorimeters and Differential Thermal Analyzers
E1860 Test Method for Elapsed Time Calibration of Thermal Analyzers
E3142 Test Method for Thermal Lag of Thermal Analysis Apparatus
2.2 Other Standards:
ISO 11357–6 Plastice-Differential Scanning Calorimetry (DSC) — Part 6: Determination of Oxidation Induction Time
3
(Isothermal OIT) and Oxidation Induction Temperature (Dynamic OIT)
4
CEC L-85–TL-85–T-99 Hot Surface OxidationOxidative Stability of Lubricants Measured by PDSC
3. Terminology
3.1 Definitions:
3.1.1 Specific technical terms used in thes
...

Questions, Comments and Discussion

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

This May Also Interest You

ASTM
ASTM E1064-23(Test Method)
Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration

SIGNIFICANCE AND USE
4.1 The coulometric technique is especially suited for determining low concentrations of water in organic liquids that would yield small titers by the Karl Fischer volumetric procedure. The precision and accuracy of the coulometric technique decreases for concentrations of water much greater than 2.0 % because of the difficulty in measuring the small size of sample required. The test method assumes 100 % efficiency of coulombs in iodine production. Provision is made for verifying this efficiency. (See Table 1 and Note 5.)
SCOPE
1.1 This test method covers the determination of water from 0 % to 2.0 % mass in most liquid organic chemicals, with Karl Fischer reagent, using an automated coulometric titration procedure. Use of this test method is not applicable for liquefied gas products such as Liquid Petroleum Gas (LPG), Butane, Propane, Liquid Natural Gas (LNG), etc.  
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 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first-aid procedures, handling, and safety precautions.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.  
1.5 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.

  • Standard
    5 pages
    English language
    sale 15% off
  • Standard
    5 pages
    English language
    sale 15% off
ASTM
ASTM D1722-09(2023)(Test Method)
Standard Test Method for Water Miscibility of Water-Soluble Solvents

SIGNIFICANCE AND USE
4.1 Water-insoluble materials present in a solvent expected to be completely water miscible may interfere with many uses of the solvent. This test method provides a measure of the miscibility of water-soluble solvents with a polar medium-water. It also provides a qualitative indication of the presence or absence of water-immiscible contaminants.  
4.2 The results of this test method may be used in assessing compliance with a specification. Prior to agreeing to this test method as the basis of a specification requirement, it may be desirable that the interpretation of what constitutes cloudiness or turbidity be agreed upon between the supplier and the purchaser.
SCOPE
1.1 This test method covers the determination of the miscibility of water-soluble solvents with water. While written specifically for testing acetone, isopropyl alcohol (isopropanol), and methyl alcohol (methanol), the method is suitable for testing most water-soluble solvents.  
1.2 This test method serves to detect water-immiscible contaminants qualitatively; the level of detection of these impurities varies widely with both the type of solvent and the type of impurity.  
1.3 The level of detection of water-insoluble materials depends upon the solvent tested and the type of impurity or impurities present, that is paraffin, olefin, aromatic, high molecular weight alcohol, or ketone, etc. There is, therefore, no specific level of impurity detected by this procedure.  
Note 1: This test method is normally performed at ambient, but other temperatures may be used as specified by the consumer and supplier.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 For specific hazard information and guidance, consult the supplier’s Safety Data Sheet for materials listed in this test method.  
1.6 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.  
1.7 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.

  • Standard
    2 pages
    English language
    sale 15% off
ASTM
ASTM D611-23(Test Method)
Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents

SIGNIFICANCE AND USE
5.1 The aniline point (or mixed aniline point) is useful as an aid in the characterization of pure hydrocarbons and in the analysis of hydrocarbon mixtures. Aromatic hydrocarbons exhibit the lowest, and paraffins the highest values. Cycloparaffins and olefins exhibit values that lie between those for paraffins and aromatics. In homologous series the aniline points increase with increasing molecular weight. Although it occasionally is used in combination with other physical properties in correlative methods for hydrocarbon analysis, the aniline point is most often used to provide an estimate of the aromatic hydrocarbon content of mixtures.
SCOPE
1.1 These test methods cover the determination of the aniline point of petroleum products and hydrocarbon solvents. Test Method A is suitable for transparent samples with an initial boiling point above room temperature and where the aniline point is below the bubble point and above the solidification point of the aniline-sample mixture. Test Method B, a thin-film method, is suitable for samples too dark for testing by Test Method A. Test Methods C and D are for samples that may vaporize appreciably at the aniline point. Test Method D is particularly suitable where only small quantities of sample are available. Test Method E describes a procedure using an automatic apparatus suitable for the range covered by Test Methods A and B.  
1.2 These test methods also cover the determination of the mixed aniline point of petroleum products and hydrocarbon solvents having aniline points below the temperature at which aniline will crystallize from the aniline-sample mixture.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.  
1.5 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 Section 7.  
1.6 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.

  • Standard
    8 pages
    English language
    sale 15% off
  • Standard
    8 pages
    English language
    sale 15% off
ASTM
ASTM E659-15(2023)(Test Method)
Standard Test Method for Autoignition Temperature of Chemicals

SIGNIFICANCE AND USE
5.1 Autoignition, by its very nature, is dependent on the chemical and physical properties of the material and the method and apparatus employed for its determination. The autoignition temperature by a given method does not necessarily represent the minimum temperature at which a given material will self-ignite in air. The volume of the vessel used is particularly important since lower autoignition temperatures will be achieved in larger vessels. (See Appendix X2.) Vessel material can also be an important factor.  
5.2 The temperatures determined by this test method are those at which air oxidation leads to ignition. These temperatures can be expected to vary with the test pressure and oxygen concentration.  
5.3 This test method is not designed for evaluating materials which are capable of exothermic decomposition. For such materials, ignition is dependent upon the thermal and kinetic properties of the decomposition, the mass of the sample, and the heat transfer characteristics of the system.  
5.4 This test method can be employed for solid chemicals which melt and vaporize or which readily sublime at the test temperature. No condensed phase, liquid or solid, should be present when ignition occurs.  
5.5 This test method is not designed to measure the autoignition temperature of materials which are solids or liquids at the test temperature (for example, wood, paper, cotton, plastics, and high-boiling point chemicals). Such materials will thermally degrade in the flask and the accumulated degradation products may ignite.  
5.6 This test method can be used, with appropriate modifications, for chemicals that are gaseous at atmospheric temperature and pressure.  
5.7 This test method was developed primarily for liquid chemicals but has been employed to test readily vaporized solids. Responsibility for extension of this test method to solids of unknown thermal stability, boiling point, or degradation characteristics rests with the operator.
SCOPE
1.1 This test method covers the determination of hot- and cool-flame autoignition temperatures of a liquid chemical in air at atmospheric pressure in a uniformly heated vessel.  
Note 1: Within certain limitations, this test method can also be used to determine the autoignition temperature of solid chemicals which readily melt and vaporize at temperatures below the test temperature and for chemicals that are gaseous at atmospheric pressure and temperature.
Note 2: After a round robin study, Test Method D2155 was discontinued, and replaced by Test Method E659 in 1978. See also Appendix X2.  
1.2 This standard should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.  
1.3 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.

  • Standard
    7 pages
    English language
    sale 15% off
ASTM
ASTM D6875-23(Test Method)
Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor

SIGNIFICANCE AND USE
5.1 This test method may be used for process control during the manufacture of organic chemicals described in Section 1, for setting specifications, for development and research work, and to determine if contamination was introduced during shipment.
SCOPE
1.1 This test method covers a general procedure for determining the solidification point of most organic chemicals having appreciable heats of fusion and solidification points between 4 °C and 41 °C.
Note 1: Other test methods for determining freeze point and solidification point of aromatic hydrocarbons include Test Methods D852, D1015, D1016, D3799, D4493, and D6269.  
1.2 This test method is applicable to relatively pure compounds only. Solidification point depression is dependent on impurity concentrations.  
1.3 The following applies to all specified limits in this test method: for purposes of determining conformance with applicable specifications using this test method, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right hand digit used in expressing the specification limit, in accordance with the “rounding-off method” of Practice E29.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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. For a specific hazard statement, see Section 8, Hazards.  
1.6 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.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM E1547-09(2023)(Terminology)
Standard Terminology Relating to Industrial and Specialty Chemicals

SCOPE
1.1 This standard covers terminology relating to industrial and specialty chemicals. It is intended to provide an understanding of terms commonly used in test methods, practices, and specifications throughout the industry.  
Note 1: The boldface numbers following each definition refer to E15 standards in which the definition appears. Lightface numbers refer to the E15 subcommittee having jurisdiction.  
1.2 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.

  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM E324-23(Test Method)
Standard Test Method for Relative Initial and Final Melting Points and the Melting Range of Organic Chemicals

SIGNIFICANCE AND USE
5.1 It has long been recognized that narrow melting range and high final melting point are good indications of high purity in crystalline organic compounds. Several ASTM test methods use these criteria to assay the purity of organic compounds (Note 1).
Note 1: Other ASTM test methods using melting (or freezing point) data to indicate sample purity are Test Methods D852 and D6875.  
5.2 The relatively simple and rapid test prescribed in this test method shows the sample under test to be either more or less pure than the standard sample. For specification purposes, a minimum allowable purity can be assured by setting limits on the differences in final melting points and the melting ranges between the standard sample and the sample under test.
SCOPE
1.1 This test method covers the determination, by a capillary tube method, of the initial melting point and the final melting point, which define the melting range, of samples of organic chemicals whose melting points without decomposition fall between 30 °C and 250 °C.  
1.2 This test method is applicable only to crystalline materials that are sufficiently stable in storage to met the requirements of a satisfactory standard sample as defined in Section 7.  
1.3 This test method is not directly applicable to opaque materials or to noncrystalline materials such as waxes, fats, and fatty acids.  
1.4 Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, handling, and safety precautions.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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.  
1.7 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.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM D7423-23(Test Method)
Standard Test Method for Determination of Oxygenates in C2, C3, C4, and C5 Hydrocarbon Matrices by Gas Chromatography and Flame Ionization Detection

SIGNIFICANCE AND USE
5.1 The determination of oxygenates is important in the manufacture of ethene, propene, 1-3 butadiene, C4 hydrocarbons, and C5 hydrocarbons. Alcohols, ethers, aldehydes, and ketones are trace impurities in these hydrocarbons. Oxygenates decrease catalyst activity in downstream polymerization processes.
SCOPE
1.1 This test method covers the gas chromatographic procedure for the quantitative determination of organic oxygenates in C2, C3, C4, and C5 matrices by multidimensional gas chromatography and flame ionization detection. This test method is applicable when the hydrocarbon matrices have a final boiling point not greater than 200 °C. Oxygenate compounds include, but are not limited to, those listed in Table 1. The linear working range for oxygenates is 0.50 mg/kg to 100 mg/kg.  
1.2 This test method is intended to determine the mass concentration of each oxygenate in the hydrocarbon matrix. Oxygenate compound identification is determined by reference standards and column elution retention order.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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.  
1.4.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities. The eLearning training course “Liquefied Petroleum Gases Sampling Safety” is available on the ASTM.org website.  
1.5 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.

  • Standard
    9 pages
    English language
    sale 15% off
  • Standard
    9 pages
    English language
    sale 15% off
ASTM
ASTM D1157-23(Test Method)
Standard Test Method for Total Inhibitor Content (TBC) of Light Hydrocarbons

SIGNIFICANCE AND USE
4.1 p-tertiary-butylcatechol is commonly added to commercial butadiene in amounts of 50 mg/kg to 250 mg/kg as an oxidation inhibitor. This test method is suitable for use by both producers and users of butadiene within the limitations described in Section 1.
SCOPE
1.1 This test method covers the determination of total p-tertiary-butylcatechol inhibitor added to polymerization and recycle grades of butadiene or to other C4 hydrocarbon mixtures containing no phenolic material other than catechol or no oxidized phenolic material other than that derived from oxidation of catechol. In general, all phenols and their quinone oxidation products are included in the calculated catechol content. Small amounts of polymer do not interfere. This test method is applicable over the range of TBC from 50 mg/kg to 500 mg/kg.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.3.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities.  
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.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM E300-03(2022)(Practice)
Standard Practice for Sampling Industrial Chemicals

SIGNIFICANCE AND USE
5.1 Representative samples of industrial chemicals are required for the determination of chemical and physical properties which are used to establish standard volumes, prices, and compliance with commercial and regulatory specifications.  
5.2 The objective of sampling is to obtain a small portion (spot sample) of material from a selected area within a container which is representative of the material in the area or, in the case of running or all-level samples, a sample whose composition is representative of the total material in the container. A series of spot samples may be combined to create a representative sample.  
5.3 Manual and Automatic Sampling Considerations—The selection of manual or automatic sampling devices is part of establishing a sampling plan applied under all conditions within the scope of this practice provided that the proper sampling procedures are followed. Both types of sampling are commonly used for liquid, solid, and slurry sampling and require adherence to the following:  
5.3.1 An adequate frequency of sampling must be selected.  
5.3.2 The equipment to support manual or automatic sampling systems may be obtained commercially, fabricated from the designs presented in this practice, or constructed as needed to satisfy process design or other specific requirements.  
5.3.3 The sampling equipment must be maintained on a regular basis, and the sampling plan adopted must be strictly followed.
SCOPE
1.1 This practice covers procedures for sampling several classes of industrial chemicals. It also includes recommendations for determining the number and location of such samples, to ensure their being representative of the lot in accordance with accepted probability sampling principles.  
1.2 Although this practice describes specific procedures for sampling various liquids, solids, and slurries, in bulk or in packages, these recommendations only outline the principles to be observed. They should not take precedence over specific sampling instructions contained in other ASTM product or method standards.  
1.3 These procedures are covered as follows:    
Sections  
Statistical Considerations  
7 – 11    
Simple Liquids  
12 – 27    
Solids  
28 – 35    
Slurries  
36 – 41  
1.4 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 precautionary statements are given in Sections 6, 19, 20, 30, 34 and 37.  
1.5 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.

  • Standard
    24 pages
    English language
    sale 15% off