1.1 ASTM丁二烯测量表用于丁二烯量的计算。随行人员 表1- 3. 涵盖将观察到的相对密度和体积降低至15.556/15.556的正常工作范围 °C（60/60 °F），并用于计算丁二烯的重量-体积关系。 1.2 这些表适用于丁二烯和丁二烯浓缩物（至少60 % 丁二烯）。 注1: 这些表格取代了国家标准与技术研究所的现有表格 信函通知LC-736 和 LC-757 和橡胶储备公司，丁二烯实验室手册。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 3.1 准确了解丁二烯的重量和体积对于材料的有序制造、储存、转移和销售是必要的。这些表格适用于丁二烯商业的这些和类似方面。 在“观测相对密度”列中输入表格，标题为0.640，注意“观测温度”为40 °F，对应的相对密度60/60 华氏度 0.627 同样，请注意，对于0.645，比重与40相反 °F，对应的相对密度60/60 华氏度 0.632 这表示相对密度60/60增加了0.005 在40°F时，数值增加0.005 °F。因此，通过简单的比例，在40°F时，比重值增加 °F从0.640到0.642增加了相应的相对密度60/60 °F乘以0.4 × 0.005或 0.002 然后，相对密度为60/60 °F对应于40℃时观察到的相对密度0.642 °F为0.627 + 0.002或 0.629 （A） °C = （°F–32） × 5. / 9 . 在“比重60/60”栏中输入表格 °F’’头0。 625，注意，相对于35的“观察温度” °F系数为 1.027 因此，在60/60时，相对密度为0.625的丁二烯为1美国加仑 °F，在35°F下测量 °F在60°C时占据体积 华氏度 1.027美国加仑 然后在35℃下测量45 500美国加仑 °F在60°F时占据体积 华氏45.500度 × 1.027或 46 728美国加仑 （A） °C = （°F–32） × 5. / 9 15.6时的单位体积重量 °C（60 °F）相对于比重60/60 华氏度 以下等式表示相对密度（60/60°F）与相应密度之间的关系，单位为磅/U。 S、 真空中的加仑: lb/gal=RD60/60×60℃时的水密度 °F，单位:克/厘米 3. ×克/厘米 3. 到磅/加仑的转换 或 lb/gal=RD60/60×60℃时的水密度 °F（磅/加仑） 根据API MPMS 11.5.2，用D60/60的值求解上述方程，并将结果四舍五入到小数点后九位，以供进一步使用 例子 相对密度为60/60的1,3丁二烯罐车 0.627°F被确定为包含24 60时为386美国加仑 华氏度 D 60/60 °F（磅/加仑）=0.627×0.999 016 × 8.345 404 452 = 5.227 419 743 91磅/加仑。 24小时 386美国加仑1,3丁二烯等于（根据API MPMS 11.5.2四舍五入）: 真空中的重量=5.227 419 744磅/加仑x 24 386加仑=127 475.86磅 观察到容量为10000美国加仑的储罐在95℃下可容纳1500加仑的液体 °F，因此表压为40.1 psi，观察到的相对密度为60/60 华氏0.627度。储罐中丁二烯蒸汽的体积明显为10000 − 1500，或 8500美国加仑 进入表中，温度为95 °F或40的表压。 1磅/平方英寸，体积为60 °F每体积蒸汽空间中的丁二烯液体为 0.01404 然后8500美国加仑乘以0.01404得到蒸汽空间中丁二烯的量，表示为60的美国加仑 °F丁二烯液体和is 119.3加仑 这是121.0 gal/60 °F蒸汽空间中的丁二烯液体可添加到储罐的液体含量中，以60美国加仑表示 °F丁二烯，以获得储罐的总含量。 从…起 表2 从95修正1500 gal的系数 °F，相对密度为0。 627至60 °F为0.961；因此，储罐中的液体含量（美国加仑）为60 °F为0.961 × 1500 1441.5加仑 60℃时储罐的总容量（美国加仑） 华氏119.3度 + 1441.5或40.1 1560.8加仑 也可以输入温度为95的表格 °F或40.1 psi的表压，读取空气中的蒸汽密度 0.0734磅/加仑 因此，8500美国加仑蒸汽空间中丁二烯的重量为（8500 × 0.0734) 623.9磅 从…起 表2 1500 gal液体，相对密度为0.627，95 °F乘以系数0。 961以获得丁二烯量 60岁时 华氏度（1500 × 0.961) 1441.5加仑 根据API MPMS 11.5.2，1441.5 gal丁二烯在60 相对密度为0.627的°F的重量为5.218189479 lb/gal；因此，液体丁二烯的重量为1441.5 × 5.218148479 7521.7磅 储罐中丁二烯的总重量为623.9 + 7521.96 8145.6磅 （A） °C = （°F–32） × 5. / 9 （B） 1磅/平方英寸 = 6.894754千帕。 （C） 1英寸。 = 25.4毫米。 （D） 1磅/加仑 = 0.119826千克/升。

1.1 The ASTM Butadiene Measurement Tables are for use in the calculation of quantities of butadiene. The accompanying Tables 1- 3 cover the normal operating ranges for the reduction of observed relative density and volume to 15.556/15.556 °C (60/60 °F) and for the calculation of weight-volume relationships of butadiene. 1.2 These tables are applicable to both butadiene and butadiene concentrates (minimum of 60 % butadiene). Note 1: These tables replace the existing tables in the National Institute of Standards and Technology Letter Circulars LC-736 and LC-757 and the Rubber Reserve Corp., Butadiene Laboratory Manual. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 3.1 Accurate knowledge of the weight and volume of butadiene is necessary for the orderly manufacture, storage, transfer, and sale of the material. These tables are suitable for use in these and similar aspects of butadiene commerce. Enter the table in the column for “Observed Relative Density,” headed 0.640, and note that against an “Observed Temperature” of 40 °F, the corresponding relative density 60/60 °F is 0.627 Likewise, note that for 0.645 specific gravity opposite 40 °F, the corresponding relative density 60/60 °F is 0.632 This represents an increase of 0.005 in relative density 60/60 °F for an increase of 0.005 in the value at 40 °F. Therefore, by simple proportion, an increase in the specific gravity value noted at 40 °F from 0.640 to 0.642 increases the corresponding relative density 60/60 °F by 0.4 × 0.005 or 0.002 Then, the relative density 60/60 °F corresponding to the observed relative density of 0.642 at 40 °F is 0.627 + 0.002 or 0.629 (A) °C = (°F–32) × 5 / 9 . Enter the table in the column for “Specific Gravity 60/60 °F'' headed 0.625, and note that against an “Observed Temperature'' of 35 °F the factor is 1.027 Hence, 1 U.S. gal of butadiene of relative density 0.625 at 60/60 °F and measured at 35 °F occupies a volume at 60 °F of 1.027 U.S. gal Then 45 500 U.S. gal measured at 35 °F occupy a volume at 60 °F of 45 500 × 1.027 or 46 728 U.S. gal (A) °C = (°F–32) × 5 / 9 WEIGHT PER UNIT VOLUME AT 15.6 °C (60 °F) AGAINST SPECIFIC GRAVITY 60/60 °F The following equation expresses the relationship between relative density (60/60 °F) and the corresponding density in pounds per U.S. gallon in vacuum: lb/gal = RD60/60 × Density of Water at 60 °F in g/cm 3 × g/cm 3 to lb/gal conversion or lb/gal = RD60/60 × Density of Water at 60 °F in lb/gal Solve equations above with values of D60/60 and round the result to nine places past the decimal for further use as per API MPMS 11.5.2 EXAMPLE A tank car of 1,3 butadiene having a relative density 60/60 °F of 0.627 is determined to contain 24 386 U.S. gallons at 60 °F D 60/60 °F in lb/gal = 0.627 × 0.999 016 × 8.345 404 452 = 5.227 419 743 91 lb/gal. The 24 386 U.S. gallons of 1,3 butadiene is then equivalent to (rounded as per API MPMS 11.5.2): Weight in vacuo = 5.227 419 744 lb/gal x 24 386 gal =127 475.86 lb A tank of 10 000 U.S. gal capacity is observed to contain 1500 gal of liquid at 95 °F and consequently 40.1 psi gauge pressure and an observed relative density of 60/60 °F 0.627. The volume of butadiene vapors in the tank is obviously 10 000 − 1500, or 8500 U.S. gal Entering the table with either the temperature of 95 °F, or the gauge pressure of 40.1 psi, the volume of 60 °F butadiene liquid in each volume of vapor space is 0.01404 Then 8500 U.S. gal multiplied by 0.01404 gives the amount of butadiene in the vapor space expressed as U.S. gallons of 60 °F butadiene liquid and is 119.3 gal This 121.0 gal of 60 °F butadiene liquid that is in the vapor space can be added to the liquid contents of the tank expressed as U.S. gallons of 60 °F butadiene to obtain the total contents of the tank. From Table 2 the factor to correct the 1500 gal from 95 °F and a relative density of 0.627 to 60 °F is 0.961; therefore, the liquid content of the tank in U.S. gallons at 60 °F is 0.961 × 1500 1441.5 gal The total contents of the tank in U.S. gallons at 60 °F is 119.3 + 1441.5 or 40.1 1560.8 gal The table can also be entered with the temperature of 95 °F or gauge pressure of 40.1 psi reading the vapor density in air of 0.0734 lb/gal The weight of butadiene in the vapor space of 8500 U.S. gal is therefore (8500 × 0.0734) 623.9 lb From Table 2 the 1500 gal of liquid of 0.627 relative density and 95 °F is multiplied by the factor of 0.961 to obtain the amount of butadiene  at 60 °F (1500 × 0.961) 1441.5 gal From API MPMS 11.5.2, the 1441.5 gal of butadiene at 60 °F with a relative density of 0.627 is noted to weigh 5.218189479 lb/gal; therefore, the weight of liquid butadiene is 1441.5 × 5.218148479 7521.7 lb The total weight of butadiene in the tank is 623.9 + 7521.96 8145.6 lb (A) °C = (°F–32) × 5 / 9 (B) 1 psi = 6.894754 kPa. (C) 1 in. = 25.4 mm. (D) 1 lb/gal = 0.119826 kg/L.