1.1 本试验方法包括测定具有代表性的2 kg煅烧石油焦样品，振动后增加压实度。 1.2 该程序仅限于通过6.68 mm开口筛网（相当于0.265 美国系列），并保留在0.21 mm开口筛网（相当于70 mesh USA系列）。此外，该程序仅限于特定的测试样品，该样品的颗粒保留在筛网之间，筛网的开口相差小于 并且优选地小于2。 1.3 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 振动堆积密度VBD是煅烧石油焦孔隙率的指标，它影响其在沥青结合碳应用中的适用性。( 警告-- 煅烧石油焦样品的振动堆积密度强烈依赖于平均粒度和粒度范围。堆积密度往往随着焦炭粒度的减小而增加。该测试的窄粒度范围最大限度地减少了由于测试样品向定义样品的任一屏幕倾斜而产生变化的可能性。测试的粒度范围应由买方和供应商商定。 ) 注1: Belitskus报道了一个使用VBD表征铝冶炼预焙阳极焦炭的例子 3. 谁发现粒子穿过0.59 mm开口，30号，筛网，保留在0.30 mm开口，50号，优选筛网。其他流行的范围是通过2.36 mm开口，8号，筛网，保留在1.17 用于连续Soderberg阳极工艺的开口为mm的16号筛网和通过6.68 mm开口筛网（相当于0.265 美国系列），并保留在3.33 mm开口，6号，石墨电极制造用筛网。

1.1 This test method covers the determination of bulk density of a representative 2 kg sample of calcined petroleum coke, after vibration to increase compaction. 1.2 The procedure is limited to particles passing through a 6.68 mm opening sieve (equivalent to a 0.265 in. USA Series) and retained on a 0.21 mm opening sieve (equivalent to a 70 mesh USA Series). Further, the procedure is limited to a specific test sample having particles retained between screens having openings that differ by a factor of less than and preferably less than 2. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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 ====== 5.1 Vibrated bulk density, VBD, is an indicator of calcined petroleum coke porosity, which affects its suitability for use in pitch-bonded carbon applications. ( Warning— Vibrated bulk density for a sample of calcined petroleum coke is strongly dependent upon average particle size and particle size range. Bulk density tends to increase with decreasing coke size. A narrow particle size range for this test minimizes the possibility for variation due to skewing of the test sample toward either screen defining the sample. Particle size range tested should be agreed upon by the purchaser and supplier.) Note 1: An example of the use of VBD to characterize coke for prebaked anodes for aluminum smelting is reported by Belitskus 3 who found particles passing through a 0.59 mm opening, No. 30, sieve and retained on a 0.30 mm opening, No. 50, sieve to be preferred. Other popular ranges are particles passing through a 2.36 mm opening, No. 8, sieve and retained on a 1.17 mm opening, No. 16, sieve for the continuous Soderberg anode process and particles passing through a 6.68 mm opening sieve (equivalent to a 0.265 in. USA Series) and retained on a 3.33 mm opening, No. 6, sieve for graphite electrode manufacture.