ASTM D7125-23

Standard Specification for Cumene (Isopropylbenzene) Manufactured Via a Zeolite Process

ABSTRACT
This specification covers cumene (isopropylbenzene) manufactured via a zeolite catalyst process. Cumene shall conform to the following requirements: purity weight percent, alpha-methylstrene, benzene, cumene hydroperoxide, diisopropylbenzenes, ethylbenzene, i-butylbenzene, n-butylbenzene, s- butylbenzene, t- butylbenzene, phenols, n-propylbenzene, sulfur, toluene, total butylbenzenes, total cymenes, total non-aromatics, total GC unknowns, bromine index, appearance, and color.
SCOPE
1.1 This specification covers cumene (isopropylbenzene) manufactured using a zeolite catalyst process.  
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, 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.  
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 Consult current OSHA Regulations and Supplier’s Safety Data Sheets, and local regulations for all materials used in this specification.  
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.

General Information

• Status: Published
• Publication Date: 31-Mar-2023
• ICS: 71.080.15 - Aromatic hydrocarbons
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.07 - Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocarbons

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: D7125 − 23
Standard Specification for
Cumene (Isopropylbenzene) Manufactured Via a Zeolite
1
Process
This standard is issued under the fixed designation D7125; 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* D5386 Test Method for Color of Liquids Using Tristimulus
Colorimetry
1.1 This specification covers cumene (isopropylbenzene)
D5776 Test Method for Bromine Index of Aromatic Hydro-
manufactured using a zeolite catalyst process.
carbons by Electrometric Titration
1.2 The following applies to all specified limits in this
D7057 Test Method for Analysis of Isopropylbenzene
specification: for purposes of determining conformance with
(Cumene) by Gas Chromatography (External Standard)
this specification, an observed value or a calculated value shall
D7183 Test Method for Determination of Total Sulfur in
be rounded off “to the nearest unit” in the last right-hand digit
Aromatic Hydrocarbons and Related Chemicals by Ultra-
used in expressing the specification limit, in accordance with
violet Fluorescence
the rounding-off method of Practice E29.
D7359 Test Method for Total Fluorine, Chlorine and Sulfur
1.3 Units—The values stated in SI units are to be regarded in Aromatic Hydrocarbons and Their Mixtures by Oxida-
tive Pyrohydrolytic Combustion followed by Ion Chroma-
as standard. No other units of measurement are included in this
standard. tography Detection (Combustion Ion Chromatography-
CIC)
1.4 Consult current OSHA Regulations and Supplier’s
D8005 Test Method for Color of Clear Liquids (Platinum-
Safety Data Sheets, and local regulations for all materials used
Cobalt Scale)
in this specification.
E29 Practice for Using Significant Digits in Test Data to
1.5 This international standard was developed in accor-
Determine Conformance with Specifications
dance with internationally recognized principles on standard-
E298 Test Methods for Assay of Organic Peroxides
ization established in the Decision on Principles for the
E299 Test Method for Trace Amounts of Peroxides In
Development of International Standards, Guides and Recom-
Organic Solvents
mendations issued by the World Trade Organization Technical
E2680 Test Method for Appearance of Clear, Transparent
Barriers to Trade (TBT) Committee.
Liquids (Visual Inspection Procedure)
2.2 Other Documents:
2. Referenced Documents
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
2
3
2.1 ASTM Standards:
1910.1200
D1492 Test Method for Bromine Index of Aromatic Hydro-
3. Properties
carbons by Coulometric Titration
D3160 Test Method for Phenol Content of Cumene (Isopro-
3.1 Cumene (isopropylbenzene) manufactured via a cata-
pylbenzene) or AMS (α–Methylstyrene)
lytic zeolite process shall conform to the following require-
D3437 Practice for Sampling and Handling Liquid Cyclic
ments:
Products
1
This specification is under the jurisdiction of Committee D16 on Aromatic,
Industrial, Specialty and Related Chemicals and is the direct responsibility of Sub
committee D16.07 on Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocar-
bons.
Current edition approved April 1, 2023. Published April 2023. Originally
approved in 2007. Last previous edition approved in 2022 as D7125 – 22. DOI:
10.1520/D7125-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from Superintendent of Documents, U.S. Government Printing
the ASTM website. Office, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
*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

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D7125 − 23
4. Sampling
ASTM Test
Property Specifications
A
Method
4.1 Sampling the material in accordance with Practice
Purity, mass %, min 99.93 D7057
D3437.
Alpha-Methylstrene, mg/kg, max 50 D7057
Benzene, mg/kg, max 10 D7057
4.2 If cumene has been exposed to air, cumene hydroper-
Cumene hydroperoxide, at loading, mg/kg, 100 E298 or E299
oxide might be in the sample. Suitable precautions should be
max
Diisopropylbenzenes, Individual Isomer, 5 D7057
exercised for handling cumene that might contain cumene
mg/kg, max
hydroperoxide.
Diisopropylbenzenes, Total, mg/kg, max 10 D7057
Ethylbenzene, mg/
...

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: D7125 − 22 D7125 − 23
Standard Specification for
Cumene (Isopropylbenzene) Manufactured Via a Zeolite
1
Process
This standard is issued under the fixed designation D7125; 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 specification covers cumene (isopropylbenzene) manufactured using a zeolite catalyst process.
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this
specification, 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.
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.4 Consult current OSHA Regulations and Supplier’s Safety Data Sheets, and local regulations for all materials used in this
specification.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1492 Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric Titration
D3160 Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (α–Methylstyrene)
D3437 Practice for Sampling and Handling Liquid Cyclic Products
3
D3760 Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (Withdrawn 2022)
D5386 Test Method for Color of Liquids Using Tristimulus Colorimetry
D5776 Test Method for Bromine Index of Aromatic Hydrocarbons by Electrometric Titration
D7057 Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (External Standard)
D7183 Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet
Fluorescence
D7359 Test Method for Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their Mixtures by Oxidative
Pyrohydrolytic Combustion followed by Ion Chromatography Detection (Combustion Ion Chromatography-CIC)
1
This specification is under the jurisdiction of Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsibility of Sub committee
D16.07 on Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocarbons.
Current edition approved Sept. 1, 2022April 1, 2023. Published September 2022April 2023. Originally approved in 2007. Last previous edition approved in 20172022 as
D7125 – 17.D7125 – 22. DOI: 10.1520/D7125-22.10.1520/D7125-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 ----------------------
D7125 − 23
D8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E298 Test Methods for Assay of Organic Peroxides
E299 Test Method for Trace Amounts of Peroxides In Organic Solvents
E2680 Test Method for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)
2.2 Other Documents:
3
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Properties
3.1 Cumene (isopropylbenzene) manufactured via a catalytic zeolite process shall conform to the following requirements:
3
Available from Superintendent of Documents, U.S. Government Printing Office, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
2

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D7125 − 23
ASTM Test
Property Specifications
A
Method
Purity, mass %, min 99.93 D3760 or D7057
Purity, mass %, min 99.93 D7057
Alpha-Methylstrene, mg/kg, max 50 D3760 or D7057
Alpha-Methylstrene, mg/kg, max 50 D7057
Benzene, mg/kg, max 10 D3760 or D7057
Benzene, m
...