ASTM D2712-23 PDF
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St ASTM D2712-23
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Ст ASTM D2712-23
Original standard ASTM D2712-23 in PDF full version. Additional info + preview on request
Full title and description
ASTM D2712-23 — Standard Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography. This method specifies a gas‑chromatographic procedure for quantifying trace hydrocarbon impurities in propylene (propene) concentrates used as feedstock or product streams in petrochemical and industrial applications.
Abstract
ASTM D2712-23 defines a GC‑based analytical procedure for measuring hydrocarbon impurities in propylene samples of 97 % mass purity or greater. The procedure covers analyte concentrations from about 0.35 mg/kg up to 8575 mg/kg and lists target components (methane, ethane, ethylene, propane, acetylene, isobutane, propadiene, n‑butane, trans‑2‑butene, 1‑butene, isobutylene, cis‑2‑butene, isopentane, methylacetylene, n‑pentane, and 1,3‑butadiene). Optionally, pentenes/hexanes and heavier hydrocarbons may be included. The method does not address non‑hydrocarbon contaminants; purity by difference is determined from summed analytes. Safety considerations for handling LPG/flammable gases are included.
General information
- Status: Active / Published
- Publication date: March 1, 2023
- Publisher: ASTM International
- ICS / categories: 71.080.10 (Aliphatic hydrocarbons)
- Edition / version: D2712-23
- Number of pages: 6
Basic bibliographic and status details as published in the ASTM catalog and standards resellers.
Scope
This test method is intended for determination of hydrocarbon impurities in propylene (propene) concentrates having at least 97 % mass purity. The analytical range spans approximately 0.35 mg/kg to 8575 mg/kg for the listed hydrocarbons; heavier components may be added by option. It excludes non‑hydrocarbon contaminants (other tests required for those). The procedure is intended for use as a commercial specification benchmark, for internal quality control, and for development/research work related to propylene feedstock and product quality.
Key topics and requirements
- Gas‑chromatographic separation and quantitative determination of trace hydrocarbons in propylene.
- Applicable sample purity: propylene ≥ 97 % by mass.
- Analytical concentration range: ~0.35 mg/kg to 8575 mg/kg for specified analytes.
- Target analytes include methane, ethane, ethylene, propane, acetylene, isobutane, propadiene, n‑butane, trans‑2‑butene, 1‑butene, isobutylene, cis‑2‑butene, isopentane, methylacetylene, n‑pentane, and 1,3‑butadiene (optionally pentenes/hexanes/heavier components).
- Purity-by‑difference approach: non‑hydrocarbon impurities are not measured by this method.
- Safety and handling instructions for flammable gases; recommended LPG safety training for operators.
Summary based on the method scope and significance statements.
Typical use and users
Used by analytical and quality control laboratories within petrochemical producers, industrial gas suppliers, polymer and catalyst manufacturers, testing laboratories, and R&D groups that require accurate quantification of trace hydrocarbons in high‑purity propylene. Typical applications include supplier incoming inspection, process monitoring, specification compliance, and research into catalyst or process fouling related to trace contaminants.
Related standards
Relevant documents include earlier historical versions of D2712 (for example D2712‑91R96) and other ASTM D‑series methods covering gas analysis and hydrocarbon testing under Committee D02 (Petroleum Products, Liquid Fuels, and Lubricants). Users commonly cross‑reference related GC and gas‑analysis standards and safety practices when designing a full testing program.
Keywords
ASTM D2712-23, propylene, propene, high‑purity propylene, hydrocarbon impurities, gas chromatography, trace analysis, LPG safety, analytical method, D02.
FAQ
Q: What is this standard?
A: It is ASTM D2712-23, a gas‑chromatography test method for measuring hydrocarbon impurities in high‑purity propylene (propene) concentrates.
Q: What does it cover?
A: The method covers GC determination of a defined list of hydrocarbon impurities (see Key topics) in propylene of ≥97 % mass purity across a specified concentration range (~0.35 mg/kg to 8575 mg/kg). It does not determine non‑hydrocarbon contaminants.
Q: Who typically uses it?
A: QC laboratories, petrochemical manufacturers, industrial gas suppliers, research labs, and anyone specifying or verifying the hydrocarbon purity of propylene feedstocks or products.
Q: Is it current or superseded?
A: D2712‑23 is the active/current published revision issued March 1, 2023. Historical prior versions (for example D2712‑91R96) exist. Users should confirm the latest status before purchase or citation.
Q: Is it part of a series?
A: It is maintained by ASTM Committee D02 (subcommittee D02.D0) and appears in the ASTM Book of Standards collection for petroleum and related analytical methods (Book of Standards Vol. 05.01). It is typically used alongside other D02 gas‑analysis standards.
Q: What are the key keywords?
A: Propylene, propene, hydrocarbon impurities, gas chromatography, trace analysis, LPG safety, ASTM D2712-23, high‑purity propylene.