ASTM D5842 Sampling and Handling of Fuels for Volatility Measurement
ASTM D5842 Standard Practice for Sampling and Handling of Fuels for Volatility Measurement
8. Special Precautions and Instructions
8.1 Precautions - Vapor pressures are extremely sensitive to evaporation losses and to slight changes in composition. When obtaining, storing, or handling samples, observe the necessary precautions to ensure the samples are representative of the product and satisfactory for Reid equivalent vapor pressure tests. Never manually prepare composite samples for this test. Make certain that containers that are to be shipped by common carrier conform to applicable federal, state, and local regulations. When flushing or purging lines or containers, observe the pertinent regulations and precautions against fire, explosion, and other hazards. Collect all line flushes and bottle rinses for proper recovery or disposal.
8.2 Sample Containers - Use containers of sufficient strength to withstand the pressures to which they can be subjected, and of a type that will permit replacement of the cap or stopper with suitable connections for transferring the sample to the gasoline chamber of the vapor pressure apparatus.
9. Keywords
9.1 dry vapor pressure; fuels; gasoline; gasoline sampling; petroleum products; sampling; sample handling; sampling of volatile products; vapor pressure; volatility
