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ASTM D6875-08

(Test Method)

Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor

Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor

SIGNIFICANCE AND USE
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 and 41°C.
Note 1—Other test methods for determining freeze point and solidification point of aromatic hydrocarbons include Test Methods D 852, D 1015, D 1016, D 3799, D 4493, and D 6269.
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 E 29.
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 and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 8, Hazards.

General Information

Status
Historical
Publication Date
30-Sep-2008
ICS
71.080.01 - Organic chemicals in general
Technical Committee
D16 - Aromatic, Industrial, Specialty and Related Chemicals
Drafting Committee
D16.04 - Instrumental Analysis
Current Stage
Ref Project

Relations

Replaces
ASTM D6875-03 - Standard Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor
Effective Date
01-Oct-2008
Referred By
ASTM D5871-19 - Standard Specification for Benzene for Cyclohexane Feedstock
Effective Date
01-Oct-2008
Referred By
ASTM D4734-20 - Standard Specification for Refined Benzene-545
Effective Date
01-Oct-2008
Referred By
ASTM E324-23 - Standard Test Method for Relative Initial and Final Melting Points and the Melting Range of Organic Chemicals
Effective Date
01-Oct-2008
Referred By
ASTM D7185-19 - Standard Specification for Low Toluene Low Dioxane (LTLD) Benzene
Effective Date
01-Oct-2008
Referred By
ASTM D2439-20 - Standard Specification for Refined Phenol
Effective Date
01-Oct-2008
Referred By
ASTM D2359-19 - Standard Specification for Refined Benzene-535
Effective Date
01-Oct-2008

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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:D6875 −08
StandardTest Method for
Solidification Point of Industrial Organic Chemicals by
1
Thermistor
This standard is issued under the fixed designation D6875; 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 D852 Test Method for Solidification Point of Benzene
3
(Withdrawn 2012)
1.1 This test method covers a general procedure for deter-
D1015 Test Method for Freezing Points of High-Purity
mining the solidification point of most organic chemicals
3
Hydrocarbons (Withdrawn 2012)
having appreciable heats of fusion and solidification points
D1016 Test Method for Purity of Hydrocarbons from Freez-
between 4 and 41°C.
3
ing Points (Withdrawn 2012)
NOTE 1—Other test methods for determining freeze point and solidifi-
D3437 Practice for Sampling and Handling Liquid Cyclic
cation point of aromatic hydrocarbons include Test Methods D852,
3
Products (Withdrawn 2012)
D1015, D1016, D3799, D4493, and D6269.
D3438 Practice for Sampling and Handling Naphthalene,
1.2 This test method is applicable to relatively pure com-
Maleic Anhydride, and Phthalic Anhydride (Withdrawn
pounds only. Solidification point depression is dependent on
3
2012)
impurity concentrations. 3
D3799 (Withdrawn 2012)
D3852 Practice for Sampling and Handling Phenol, Cresols,
1.3 The following applies to all specified limits in this test
3
and Cresylic Acid (Withdrawn 2012)
method: for purposes of determining conformance with appli-
D4297 Practice for Sampling and Handling Bisphenol A
cable specifications using this test method, an observed value
3
(4,4' -Isopropylidinediphenol) (Withdrawn 2012)
or a calculated value shall be rounded off “to the nearest unit”
in the last right hand digit used in expressing the specification D4493 Test Method for Solidification Point of Bisphenol A
3
(4,4`-Isopropylidenediphenol) (Withdrawn 2012)
limit,inaccordancewiththe“rounding-offmethod”ofPractice
E29. D6269 Test Method for Solidification Point of p-Xylene
3
(Withdrawn 2012)
1.4 The values stated in SI units are to be regarded as
E29 Practice for Using Significant Digits in Test Data to
standard. No other units of measurement are included in this
Determine Conformance with Specifications (Withdrawn
standard.
3
2012)
1.5 This standard does not purport to address all of the
2.2 Other Documents:
safety concerns, if any, associated with its use. It is the
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
4
responsibility of the user of this standard to establish appro-
1910.1200
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use. For a specific
hazard statement, see Section 8, Hazards.
3.1 Definitions:
3.1.1 solidification point, n—an empirical constant defined
2. Referenced Documents
as the temperature at which the liquid phase of a substance is
2
in approximate equilibrium with a relatively small portion of
2.1 ASTM Standards:
the solid phase.
3.1.1.1 Discussion—Solidification point as distinguished
from freezing point is described in Test Method D1015.An
1
This test method is under the jurisdiction of ASTM Committee D16 on
interpretation of mole percent in terms of freezing point is
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
given in Test Method D1016.
Subcommittee D16.04 on Instrumental Analysis.
Current edition approved Oct. 1, 2008. Published November 2008. Originally
approved in 2003. Last previous edition approved in 2003 as D6875 - 03. DOI:
3
10.1520/D6875-08. The last approved version of this historical standard is referenced on
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6875−08
4. Summary of Test Method 8. Hazards
4.1 The solidification point is measured by noting the 8.1 Consult current OSHA regulations, supplier’s Material
maximum temperature reached during a cooling cycle after the Safety Data Sheets, and local regulations for all materials used
appearance of a solid phase. in this procedure.
8.2 Appropriate personal protection equipment such as
5. Significance and Use
gloves, safety glasses, a lo
...

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.
Designation:D6875–03 Designation: D 6875 – 08
Standard Test Method for
Solidification Point of Industrial Organic Chemicals by
1
Thermistor
This standard is issued under the fixed designation D 6875; 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 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 and 41°C.
NOTE 1—Other test methods for determining freeze point and solidification point of aromatic hydrocarbons include Test Methods D 852, D 1015,
D 1016, D1493, D 3799, D 4493, and D 6269.
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 E 29.
1.4
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 and health practices and determine the applicability of regulatory
limitations prior to use. For a specific hazard statement, see Section 8, Hazards.
2. Referenced Documents
2
2.1 ASTM Standards:
D 852 Test Method for Solidification Point of Benzene
D 1015 Test Method for Freezing Points of High-Purity Hydrocarbons
D 1016 Test Method for Purity of Hydrocarbons from Freezing Points
2
D1493Test Method for Solidification Point of Industrial Organic Chemicals 3437 Practice for Sampling and Handling Liquid
Cyclic Products
2
D3437Practice for Sampling and Handling Liquid Cyclic Products 3438 Practice for Sampling and Handling Naphthalene,
Maleic Anhydride, and Phthalic Anhydride
2
D3438Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride 3799 Test Method for
3
purity of Styrene by Freezing Point Method
2
D3799TestMethodforPurityofStyrenebyFreezingPointMethod 3852 PracticeforSamplingandHandlingPhenol,Cresols,
and Cresylic Acid
2
D3852Practice for Sampling and Handling Phenol, Cresols, and Cresylic Acid 4297 Practice for Sampling and Handling
Bisphenol A (4,4 -Isopropylidinediphenol)
2
D4297Practice for Sampling and Handling Bisphenol A (4,4’-Isoproplyidenediphenol) 4493 Test Method for Solidification
Point of Bisphenol A (4,48-Isopropylidenediphenol)
2
D4493Test Method for Solidification Point of Bisphenol A (4,4’-Isoproplyidenediphenol)
D 6269 Test Method for Solidification Point of p-Xylene
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
1
This test method is under the jurisdiction of ASTM Committee D16 on Packaging and is the direct responsibility of Subcommittee D16.04 on Instrumental Analysis .
Current edition approved Feb. 10, 2003. Published April 2003.
1
This test method is under the jurisdiction ofASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.04 on Instrumental Analysis.
Current edition approved Oct. 1, 2008. Published November 2008. Originally approved in 2003. Last previous edition approved in 2003 as D 6875 - 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 06.04.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6875–08
2.2 Other Documents:
4
OSHA Regulations, 29 CRFR,CFR paragraphs 1910.1000 and 1910.1200
3. Terminology
3.1 Definitions:
3.1.1 solidification point, n—an empirical constant defined as the temperature at which the liquid phase of a substance is in
approximate equilibrium
...

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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.

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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.

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