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ASTM D847-04

(Test Method)

Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons

Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons

SIGNIFICANCE AND USE
This test method is suitable for setting specifications, for use as an internal quality control tool, and for use in development or research work on industrial aromatic hydrocarbons and related materials. This test method gives an indication of residual acidity and is a measure of the quality of the finished product. It is an indication of the tendency of the product to corrode equipment.
SCOPE
1.1 This test method is intended for the detection of acidity and for the quantitative determination of acidity of benzene, toluene, xylenes, solvent naphthas, and similar industrial aromatic hydrocarbons.
1.2 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E 29.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements see Section 8.

General Information

Status
Historical
Publication Date
31-May-2004
ICS
71.080.15 - Aromatic hydrocarbons
Technical Committee
D16 - Aromatic, Industrial, Specialty and Related Chemicals
Drafting Committee
D16.01 - Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives
Current Stage
Ref Project

Relations

Replaces
ASTM D847-96(2000) - Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
Effective Date
01-Jun-2004
Replaced By
ASTM D847-08 - Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
Effective Date
01-Dec-2008
Referred By
ASTM D268-22 - Standard Guide for Sampling and Testing Volatile Solvents and Chemical Intermediates for Use in Paint and Related Coatings and Material
Effective Date
01-Jun-2004
Referred By
ASTM D4790-23 - Standard Terminology of Aromatic Hydrocarbons and Related Chemicals
Effective Date
01-Jun-2004

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ASTM D847-04 - Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic HydrocarbonsASTM D847-04 - Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
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ASTM D847-04 - Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
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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:D847–04
Standard Test Method for
Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas,
1
and Similar Industrial Aromatic Hydrocarbons
This standard is issued under the fixed designation D 847; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3.1.1 acidity, n—the number of milligrams of sodium hy-
droxide consumed when 100 mL of the specimen are titrated
1.1 This test method is intended for the detection of acidity
under the conditions prescribed in this test method.
and for the quantitative determination of acidity of benzene,
3.1.2 acid reaction, n—a characteristic of materials produc-
toluene, xylenes, solvent naphthas, and similar industrial aro-
ing the acid-color of the indicator used under the conditions
matic hydrocarbons.
prescribed in this test method.
1.2 In determining the conformance of the test results using
3.1.3 alkaline or basic reaction, n—a characteristic of the
this method to applicable specifications, results shall be
materials producing the alkali-color of the indicator used under
rounded off in accordance with the rounding-off method of
the conditions prescribed in this test method.
PracticeE29.
1.3 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 The acidity of aromatic hydrocarbons is detected and
responsibility of the user of this standard to establish appro-
determined quantitatively using a sodium hydroxide titration
priate safety and health practices and determine the applica-
and a color change in a phenolphthalein indicator.
bility of regulatory limitations prior to use. For specific hazard
statements see Section 8.
5. Significance and Use
2. Referenced Documents 5.1 Thistestmethodissuitableforsettingspecifications,for
2 use as an internal quality control tool, and for use in develop-
2.1 ASTM Standards:
mentorresearchworkonindustrialaromatichydrocarbonsand
D 1193 Specification for Reagent Water
related materials. This test method gives an indication of
D 3437 Practice for Sampling and Handling Liquid Cyclic
residual acidity and is a measure of the quality of the finished
Products
product. It is an indication of the tendency of the product to
E29 Practice for Using Significant Digits in Test Data to
corrode equipment.
Determine Conformance with Specifications
2.2 Other Documents:
6. Interferences
OSHA Regulations, 29 CFR, Paragraphs 1910.1000 and
6.1 Tests for acidity are not applicable in the presence of
3
1910.1200
contaminating acidic or alkaline gases, soaps, salts, or other
compounds derived from the atmosphere or apparatus. The
3. Terminology
container holding the specimen, and the apparatus, water,
3.1 Definitions:
indicator,andothermaterialsusedinthetestshallbechosenso
that they themselves shall not appreciably affect the results.
1
This test method is under the jurisdiction of ASTM Committee D16 on
Since new corks used in specimen bottles often are bleached
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
with oxalic acid, it is advisable to rinse them thoroughly and
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their
check them for neutrality with the indicator used in the test.
Derivatives.
4
CurrenteditionapprovedJune1,2004.PublishedJuly2004.Originallyapproved
Glassware shall be of acid-resistant and alkali-resistant glass
in 1945. Last previous edition approved in 1996 as D 847 – 96 (2000).
and shall be rinsed with neutral distilled water before use. The
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
room in which the test is performed shall be chosen so as to
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.
3
AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
4
732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401. Borosilicateglassortheequivalenthasbeenfoundsatisfactoryforthispurpose.
*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

---------------------- Page: 1 ----------------------
D847–04
prevent undue contamination by carbon dioxide, ammonia, or 9. Hazards
other interfering substances that may be present in the atmo-
9.1 Consult current OSHA regulations, supplier’s Material
sphere.
Safety Data Sheets, a
...

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1.1 This test method covers the determination of the acid wash color of benzene, toluene, xylenes, refined solvent naphthas, and similar industrial aromatic hydrocarbons.  
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ASTM D847-23(Test Method)
Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons

SIGNIFICANCE AND USE
5.1 This test method is suitable for setting specifications, for use as an internal quality control tool, and for use in development or research work on industrial aromatic hydrocarbons and related materials. This test method gives an indication of residual acidity and is a measure of the quality of the finished product. It is an indication of the tendency of the product to corrode equipment.
SCOPE
1.1 This test method is intended for the detection of acidity of benzene, toluene, xylenes, solvent naphthas, and similar industrial aromatic hydrocarbons.  
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. For specific hazard statements see Section 9.  
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.

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