10. Procedure
10.1 Record the prevailing barometric pressure.
10.2 Groups 1 and 2—Ensure that the sample is conditioned in accordance with Table 2. Fit a low range thermometer provided with a snug-fitting cork or stopper of silicone rubber, or equivalent polymeric material, tightly into the neck of the sample container and bring the temperature of the sample to the temperature indicated in Table 3.
10.3 Groups 1, 2, 3, and 4—Check that the temperature of the sample is as shown in Table 3. Pour the specimen precisely to the 100 mL mark of the receiving cylinder, and transfer the contents of the receiving cylinder as completely as practical into the distillation flask, ensuring that none of the liquid flows into the vapor tube.