Standard Specification for Refined Benzene-545

SCOPE
1.1 This specification covers benzene-545.
1.2 The following applies to all specified limits in this standard: for purposes of determining conformance with this standard, 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 in Practice E 29.
1.3 Consult current OSHA regulations and supplier's Material Safety Data Sheets for all materials used in this specification.

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Publication Date
09-Apr-1998
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ASTM D4734-98 - Standard Specification for Refined Benzene-545
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 4734 – 98
Standard Specification for
1
Refined Benzene-545
This standard is issued under the fixed designation D 4734; 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 tion and Chemiluminescence Detection
D 4735 Test Method for Determination of Trace Thiophene
1.1 This specification covers benzene-545.
2
in Refined Benzene by Gas Chromatography
1.2 The following applies to all specified limits in this
D 5386 Test Method for Color of Liquids Using Tristimulus
standard: for purposes of determining conformance with this
2
Colorimetry
standard, an observed value or a calculated value shall be
D 5776 Test Methods for Bromine Index of Aromatic Hy-
rounded off “to the nearest unit” in the last right-hand digit
2
drocarbons by Electrometric Titration
used in expressing the specification limit in accordance with
E 29 Practice for Using Significant Digits in Test Data to
the rounding-off method in Practice E 29.
5
Determine Conformance with Specifications
1.3 Consult current OSHA regulations, supplier’s Material
2.2 Other Document:
Safety Data Sheets, and local regulations for all materials used
in this specification.
OSHA Regulations, 29 CFR, paragraphs 1910.1000 and
6
2. Referenced Documents
1910.1200
2.1 ASTM Standards:
3. Properties
D 848 Test Method for Acid Wash Color of Industrial
2
3.1 Benzene-545 shall conform to the following require-
Aromatic Hydrocarbons
2
ments:
D 852 Test Method for Solidification Point of Benzene
ASTM Test
D 1209 Test Method for Color of Clear Liquids (Platinum-
Property Specification
Method
2
Cobalt Scale)
D 1492 Test Method for Bromine Index of Aromatic Hy- Benzene, min, weight % 99.90 D 4492
2
Sulfur, max, mg/kg 1 D 4045
drocarbons by Coulometric Titration
Thiophene, max, mg/kg 0.6 D 1685 or D 4735
D 1685 Test Method for Traces of Thiophene in Benzene by
Toluene, max, weight% 0.05 D 4492
2
Spectrophotometry Nonaromatic hydrocarbons, max, 0.10 D 4492
weight %
D 3437 Practice for Sampling and Handling Liquid Cyclic
Nitrogen (if needed) D 4629
2
Products
1,4 Dioxane (if needed) D 4492
D 4017 Test Method for Water in Paints and Paint Materials
Acid wash color, max pass with 1 D 848
3
Bromine index, max 20 D 1492 or D 5776
by Karl Fisher Method
Water (if needed) D 4017
D 4045 Test Method for Sulfur in Petroleum Products by
A
Appe
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