Standard Specification for Low Toluene Low Dioxane (LTLD) Benzene

ABSTRACT
This specification covers the requirements for a grade of benzene known as low toluene low dioxane (LTLD) benzene. Sampled materials shall meet specified values of the following physical and chemical properties: purity; toluene content; sulfur content; thiophene content; nonaromatic hydrocarbons content; nitrogen content; acid wash color; color in Pt-Co scale; 1,4 dioxane content; anhydrous basis solidification point; water content; and total chlorides.
SCOPE
1.1 This specification covers a grade of benzene known as Low Toluene Low Dioxane (LTLD) Benzene.
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 of Practice E 29.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 Consult current OSHA regulations, supplier's Material Safety Data Sheets, and local regulations for all materials used in this specification.

General Information

Status
Historical
Publication Date
31-May-2007
Current Stage
Ref Project

Relations

Buy Standard

Technical specification
ASTM D7185-07 - Standard Specification for Low Toluene Low Dioxane (LTLD) Benzene
English language
2 pages
sale 15% off
Preview
sale 15% off
Preview

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 7185 – 07
Standard Specification for
1
Low Toluene Low Dioxane (LTLD) Benzene
This standard is issued under the fixed designation D 7185; 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* D 3437 Practice for Sampling and Handling Liquid Cyclic
Products
1.1 This specification covers a grade of benzene known as
D 4492 Test Method for Analysis of Benzene by Gas
Low Toluene Low Dioxane (LTLD) Benzene.
Chromatography
1.2 The following applies to all specified limits in this
D 4735 Test Method for Determination of Trace Thiophene
standard: for purposes of determining conformance with this
in Refined Benzene by Gas Chromatography
standard, an observed value or a calculated value shall be
D 5194 Test Method for Trace Chloride in LiquidAromatic
rounded off “to the nearest unit” in the last right-hand digit
Hydrocarbons
used in expressing the specification limit, in accordance with
D 5386 Test Method for Color of Liquids UsingTristimulus
the rounding-off method of PracticeE29.
Colorimetry
1.3
D 5808 Test Method for Determining Organic Chloride in
1.4 Consult current OSHA regulations, supplier’s Material
Aromatic Hydrocarbons and Related Chemicals by Micro-
Safety Data Sheets, and local regulations for all materials used
coulometry
in this specification.
D 6069 Test Method for Trace Nitrogen in Aromatic Hy-
2. Referenced Documents
drocarbons by Oxidative Combustion and Reduced Pres-
2
sure Chemiluminescence Detection
2.1 ASTM Standards:
D 6304 Test Method for Determination of Water in Petro-
D 848 Test Method for Acid Wash Color of Industrial
leum Products, Lubricating Oils, and Additives by Coulo-
Aromatic Hydrocarbons
metric Karl Fischer Titration
D 852 Test Method for Solidification Point of Benzene
D 6875 Test Method for Solidification Point of Industrial
D 1209 Test Method for Color of Clear Liquids (Platinum-
Organic Chemicals by Thermistor
Cobalt Scale)
D 7011 Test Method for Determination of Trace Thiophene
D 1685 Test Method forTraces ofThiophene in Benzene by
in Refined Benzene by Gas Chromatography and Sulfur
Spectrophotometry
Selective Detection
D 7183 Test Method for Determination of Total Sulfur in
1
This specification is under the jurisdiction of ASTM Committee D16 on
Aromatic Hydrocarbons and Related Chemicals by Ultra-
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
violet Fluorescence
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their
D 7184 Test Method for Ultra Low Nitrogen in Aromatic
Derivatives.
Hydrocarbons by Oxidative Combustion and Reduced
CurrenteditionapprovedJune1,2007.PublishedJuly2007.Originallyapproved
in 2006. Last previous edition approved in 2006 as D 7185 - 06.
Pressure Chemiluminescence Detection
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
E29 Practice for Using Significant Digits in Test Data to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Determine Confo
...

Questions, Comments and Discussion

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