Standard Specification for Xylenes for <i>p</i>-Xylene Feedstock

ABSTRACT
This specification covers xylenes for p-xylene feedstock. Xylenes for p-xylene feedstock shall conform to the following requirements: p-xylene minimum weight percent, ethylbenzene maximum weight percent, toluene maximum weight percent, C9 and higher boiling aromatic hydrocarbons maximum weight percent, nonaromatic hydrocarbons maximum weight percent, nitrogen maximum weight percent if needed, sulfur maximum content, appearance, chloride if needed, color, and distillation range.
SCOPE
1.1 This specification covers xylenes for  p-xylene feedstock. These xylenes typically are extracted from reformate.
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or 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, suppliers' Material Safety Data Sheets (MSDS), 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 D5211-07 - Standard Specification for Xylenes for <i>p</i>-Xylene Feedstock
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5211 – 07
Standard Specification for
1
Xylenes for p-Xylene Feedstock
This standard is issued under the fixed designation D5211; 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* Chemiluminescence Detection
D6563 Test Method for Benzene, Toluene, Xylene (BTX)
1.1 This specification covers xylenes for p-xylene feed-
Concentrates Analysis by Gas Chromatography
stock. These xylenes typically are extracted from reformate.
D7183 Test Method for Determination of Total Sulfur in
1.2 The following applies to all specified limits in this
Aromatic Hydrocarbons and Related Chemicals by Ultra-
specification: for purposes of determining conformance with
violet Fluorescence
this specification, an observed value or calculated value shall
D7184 Test Method for Ultra Low Nitrogen in Aromatic
be rounded off “to the nearest unit” in the last right hand digit
Hydrocarbons by Oxidative Combustion and Reduced
used in expressing the specification limit, in accordance with
Pressure Chemiluminescence Detection
the rounding-off method of Practice E29.
E29 Practice for Using Significant Digits in Test Data to
1.3 The values stated in SI units are to be regarded as
Determine Conformance with Specifications
standard. The values given in parentheses are for information
2.2 Other Document:
only.
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
1.4 Consult current OSHA regulations, suppliers’ Material
3
1910.1200
Safety Data Sheets (MSDS), and local regulations for all
materials used in this specification.
3. Properties
2. Referenced Documents 3.1 Xylenes for p-xylene feedstock shall conform to the
2
following requirements:
2.1 ASTM Standards:
ASTM
D850 Test Method for Distillation of Industrial Aromatic
Test
Hydrocarbons and Related Materials
Property Specification Method
A
D1209 Test Method for Color of Clear Liquids (Platinum-
p-xylene, min, weight % 18 D6563
A
Ethylbenzene, max, weight % 20 D6563
Cobalt Scale)
Toluene, max, weight % 0.5 D6563
D3437 Practice for Sampling and Handling Liquid Cyclic
C9 and higher boiling aromatic hydro- 1.0 D6563
Products
carbons, max, weight %
Nonaromatic hydrocarbons, max, 0.3 D6563
D5194 Test Method for Trace Chloride in Liquid Aromatic
weight %
Hydrocarbons
Nitrogen, max, mg/kg if needed D6069 or
D5386 Test Method for Color of Liquids Using Tristimulus D7184
Sulfur, max, mg/kg 1.0 D7183
Colorimetry
B
Appearance .
D5808 Test Method for Determining Chloride in Aromatic
Chloride if needed D5194 or
Hydrocarbons and Related Chemicals by Microcoulom- D5808
Color, max, Pt/Co scale 20 D1209 or
etry
D5386
D6069 Test Method for Trace Nitrogen inAromatic Hydro-
Distillation range, at 101.3 kPa (760 5 D850
mm Hg) pressure, max, °C
carbons by Oxidative Combustion and Reduced Pressure
Initial distillation temperature, min, 137 .
°C
...

Questions, Comments and Discussion

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