The sample handling procedures must comply with the requirements of their individual testing methods. Aromatics, oxygen and oxygenate, benzene, olefins, and sulfur samples should be at room temperature, although aromatics samples for GC-MS analysis are measured gravimetrically and are not very temperature sensitive. Distillation samples require 55 °F - 65 °F. Vapor pressure requires 32 °F - 40 °F.(7/1/94)

This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF)(333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About PDF)