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, إلخ.
المعنى والاستخدام

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, إلخ.

خطوة 1: نِطَاق

1.1 This standard is used to calculate the weight and volume of benzene, التولوين, mixed xylene, الستايرين, o-xylene, m-xylene, p-xylene, isopropylbenzene, إيثيل بنزين, 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. طاولة 1 lists the Vacuo densities of the chemicals used to develop this relationship at 60°F. كثافة (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. كثافة (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

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

(ب) 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.

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

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

1.2 تعتبر القيم بالبوصات إلى الجنيهات بمثابة قيم قياسية. ولا يتم تضمين أي وحدات قياس أخرى في هذا المعيار.

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

1.3 لا يهدف هذا المعيار إلى معالجة جميع المخاوف المتعلقة بالسلامة, لو اي, المرتبطة باستخدامه. تقع على عاتق مستخدمي هذا المعيار مسؤولية إنشاء ممارسات السلامة والصحة المناسبة وتحديد إمكانية تطبيق القيود التنظيمية قبل الاستخدام..