The ASTM D1555 standard applies to calculating the weight and volume of the product outlined in Section 1. The information provided in this method can be used to determine the amount of the above-mentioned aromatics in tanks, transport containers, тощо.
Значення і використання

3.1 This test method is suitable for calculating the weight and volume of the product outlined in Section 1. The information provided in this method can be used to determine the amount of the above-mentioned aromatics in tanks, transport containers, тощо.

Крок 1: Область застосування

1.1 This standard is used to calculate the weight and volume of benzene, толуол, mixed xylene, стирол, o-xylene, m-xylene, p-xylene, isopropylbenzene, ethylbenzene, 300 to 350°F and 350 to 400°F aromatics hydrocarbons and cyclohexane. A method for calculating the volume of 60°F from the observed volume at t °F is presented. Таблиця 1 lists the Vacuo densities of the chemicals used to develop this relationship at 60°F. Щільність (or weight) “in vacuum” represents the true density (or weight) if measured in a vacuum without the buoyancy action of air acting on a liquid. It represents the number of products that actually exist. Щільність (or weight) “in the air” represents what is actually measured to scale. The difference is about 0.13 percent. Modern densitometers measure density in a vacuum, and ASTM recommends using vacuum density (or weight).

ASTM D1555-2016 Standard Test Method for Volume and Weight Calculation of Industrial Aromatics and Cyclohexanes

(А) Regression based on the 2001 TRC Thermodynamic Table, Hydrocarbons, NSRDS-NIST 75-121 (April 30, 2001). See Appendix X1 for data.

(Б) The weight was removed from the table because it was not required by the criterion. If desired, divide the 60°F density (g/cc) by 0.999016 g/cc. See Appendix X2.

(C) produced by multiplying the density at 60°F by g/cc by 8.345404452 and rounding to 4 decimal places.

(Д) Use density -g/cc to produce in air ·1.000149926-0.001199407795) ·8.345404452, rounded to 4 decimal places. See Appendix X3.

1.2 Values in inches to pounds shall be considered as standard values. Жодні інші одиниці вимірювання не включені в цей стандарт.

1.2.1 A complete SI unit matching standard has been developed in test method D1555M.

1.3 Цей стандарт не призначений для вирішення всіх питань безпеки, якщо хто-небудь, пов'язані з його використанням. Користувачі цього стандарту несуть відповідальність за встановлення належної техніки безпеки та охорони здоров’я та визначення застосовності нормативних обмежень перед використанням.