ASTM D5234-92(2017)

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: D5234 − 92 (Reapproved 2017)
Standard Guide for
Analysis of Ethylene Product
This standard is issued under the fixed designation D5234; 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 3.1.1 ethylene product, n—hydrocarbon product containing
at least 99.85 % mass ethylene.
1.1 Thisguidecoversandprovidesdirectionfortheanalysis
ofethyleneproductinawaythatallowstheanalysttoknowthe 3.2 Symbols:
possible test methods, the units of measure, and the potential
3.2.1 C4s, n—saturated and unsaturated four carbon hydro-
concentrations range of possible components, so that the carbon compounds.
consistency of the analytical measurements is improved. This
3.2.2 COS, n—carbonyl sulfide.
guide is not intended to be used, nor to be construed in any
3.2.3 GC, n—gas chromatograph.
way, as a set of specifications for ethylene product.
3.2.4 FPD, n—flame photometric detector.
1.2 The values stated in SI units are to be regarded as the
3.2.5 IC, n—ion chromatograph.
standard.
3.2.6 MeOH, n—methanol.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2.7 NO, n—nitric oxide.
responsibility of the user of this standard to establish appro-
3.2.8 NO,n—nitrogen dioxide.
priate safety and health practices and determine the applica-
3.2.9 O,n—oxygen.
bility of regulatory limitations prior to use. 2
3.2.10 sp. ion electrode, n—specific ion electrode.
2. Referenced Documents
4. Significance and Use
2.1 ASTM Standards:
D2504 Test Method for Noncondensable Gases in C and
4.1 When the various producers and users of ethylene
Lighter Hydrocarbon Products by Gas Chromatography
product deal with the results obtained in analytical testing,
D2505 Test Method for Ethylene, Other Hydrocarbons, and
inconsistency of units and test methods may cause major
Carbon Dioxide in High-Purity Ethylene by Gas Chroma-
errors. This guide provides an overview of the typical concen-
tography
trations of the possible components found in ethylene product,
D3246 Test Method for Sulfur in Petroleum Gas by Oxida-
the methods used in analysis, and the units of measure. This
tive Microcoulometry
overview is intended to be used to improve the consistency of
D4178 Practice for Calibrating Moisture Analyzers
methods and the units reported so that errors are minimized.
D4468 Test Method for Total Sulfur in Gaseous Fuels by
Each producer and user of ethylene product should immedi-
Hydrogenolysis and Rateometric Colorimetry
ately review this guide to improve their awareness of the
F307 Practice for Sampling Pressurized Gas for Gas Analy-
various analytical methods in use, the units of measure, and
sis
concentration levels of the possible components.
4.2 Although this guide is not to be used for specifications,
3. Terminology
it can provide a starting point for the various parties to develop
3.1 Definitions:
mutually agreed upon specifications that meet their respective
requirements. It can also be used as a starting point in finding
suitable test methods for ethylene components.
This guide is under the jurisdiction of ASTM Committee D02 on Petroleum
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom-
mittee D02.D0.02 on Ethylene.
5. Sampling
Current edition approved Jan. 1, 2017. Published February 2017. Originally
5.1 In general, sample ethylene product using Practice
approved in 1992. Last previous edition approved in 2012 as D5234 – 92 (2012).
DOI: 10.1520/D5234-92R17.
F307, or a similar method. Do not take liquid ethylene samples
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
in order to prevent over-pressuring of sample containers and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
elimination of fire and explosion hazards. Static electricity can
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. develop when discharging excess hydrocarbon at a fairly rapid
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D5234 − 92 (2017)
A
TABLE 2 Ethylene Test Methods (Non-ASTM)
rate from a sample cylinder to ambient conditions. Use a
Components Possible Test Methods
grounding system or strap.
Methane, ethane propane, pro- An adaptation of Test Method D2505 is
5.2 Reactive and Polar Components:
pylen
...