ASTM D1835-22 PDF

Overview

ASTM D1835-22: Standard Specification for Liquefied Petroleum (LP) Gases establishes the requirements for liquefied petroleum gases, commonly known as LPG, which consist primarily of propane, propene (propylene), butane, and their mixtures. LPG is widely used as a fuel for domestic, commercial, and industrial heating, as well as for internal combustion engines.

The standard defines four basic types of LPG products to align with common applications and sets consistent benchmarks for quality, safety, and performance. Compliance with ASTM D1835-22 ensures LPG products meet industry requirements for vapor pressure, volatile residue, density, and corrosion resistance, supporting both efficiency and regulatory adherence in the LPG supply chain.

Key Topics

• Product Composition: Specifies commercial propane, commercial butane, commercial propane-butane mixtures, and special-duty propane. Each type addresses different volatility and performance needs for fuel applications.

• Critical Quality Requirements:

  • Vapor pressure: Determines fuel usability at varying temperatures and prevents hazardous over-pressurization.
  • Residue limits: Controls the amount of less volatile hydrocarbons to safeguard fuel system performance and cleanliness.
  • Corrosion resistance: Ensures LPG does not degrade copper or copper alloy fittings commonly used in storage and distribution.
  • Sulfur content: Sets maximum sulfur levels to minimize emissions and equipment corrosion.
  • Moisture and free water: Regulates water content to prevent equipment freeze-up and operational issues.

• Testing and Sampling: Adopts standardized sampling and test methods (e.g., vapor pressure, density, residue, corrosion, and sulfur analysis) to ensure consistent results and product quality.

• Safety and Regulatory Compliance: While the standard outlines product requirements, it advises that users must implement proper safety, environmental, and health practices and consider applicable regulations.

Applications

ASTM D1835-22 is vital for industries and operations involving:

• Domestic Use: Residential heating, cooking, and water heating where reliable and safe fuel performance is essential.
• Commercial and Industrial Heating: Applications demand uniform vaporization, clean burning, and compliance to minimize system maintenance and environmental impact.
• Engine Fuels: Special-duty propane is tailored for internal combustion engines, especially in vehicles and equipment operated under stringent performance conditions.
• Material Processing: Used as a carbon source or refining raw material in certain manufacturing and petrochemical processes where product consistency is crucial.

By establishing precise criteria for LPG products, the standard supports safe distribution, storage, and end-use, reducing risk of system failures, engine issues, or regulatory non-compliance.

Related Standards

• ASTM D1265: Practice for Sampling Liquefied Petroleum Gases
• ASTM D1267: Test Method for Gauge Vapor Pressure of LPG
• ASTM D1657: Test Method for Density or Relative Density of Light Hydrocarbons
• ASTM D2158: Test Method for Residues in Liquefied Petroleum Gases
• ASTM D2163: Determination of Hydrocarbons in Liquefied Petroleum Gases by Gas Chromatography
• ASTM D2420: Hydrogen Sulfide Determination in LPG
• ASTM D6667: Total Volatile Sulfur in LPG by Ultraviolet Fluorescence
• GPA 2140: Liquefied Petroleum Gas Specifications and Test Methods

Summary

Adhering to ASTM D1835-22 ensures liquefied petroleum gases used across residential, commercial, industrial, and automotive sectors meet defined quality, performance, and safety criteria. By following this specification, producers, distributors, and end-users can achieve reliable fuel performance, comply with regulatory requirements, and maintain safe handling practices throughout the LPG value chain.