616 BULK DENSITY AND TAPPED DENSITY 松密度和紧密度 The bulk density of a solid is often very difficult to measure since the slightest disturbance of the bed may result in a new bulk density. Moreover, it is clear that the bulking properties of a powder are dependent on the “history” ...
tappeddensitybulk量筒粉末翻译 616BULKDENSITYANDTAPPEDDENSITY USP<616>BULKDENSITYANDTAPPEDDENSITY 固体的松密度的测量很困难,测量时,轻微的震动就会导致松密度的不同。因此,可以知道 粉末的松散性取决于粉末的来历。而且压紧之后,会有一个密度范围。因此,报告松密度时, 必须说明结果是如何得到的。 微粒的相互作用不仅...
内容提示: 616 BULK DENSITY AND TAPPED DENSITY USP<616>BULK DENSITY AND TAPPED DENSITY 固体的松密度的测量很困难, 测量时, 轻微的震动就会导致松密度的不同。 因此, 可以知道粉末的松散性取决于粉末的来历。 而且压紧之后, 会有一个密度范围。 因此, 报告松密度时,必须说明结果是如何得到的。 微粒的相互...
256 〈616〉 Bulk Density and Tapped Density of Powders / Physical Tests USP 35 (1 g/mL = 1000 kg/m 3 ) because the measurements are made using cylinders. It may also be expressed in grams per cubic centimeter (g/cm 3 ). The bulking properties of a powder are dependent upon the...
616 BULK DENSITY AND TAPPED DENSITY The bulk density of a solid is often very difficult to measure since the slightest disturbance of the bed may result in a new bulk density. Moreover, it is clear that the bulking properties of a powder are dependent on the “history” of the powder (e...
<616> BULK DENSITY AND TAPPED DENSITY OF POWDERS 本章已与欧洲药典和/或日本药典的相应文本协调一致。 ♦未统一的部分用符号(♦)标记以表明这一事实。 粉末的堆积密度是未开发粉末样品的质量与其体积(包括颗粒间空隙体积的贡献)之比。因此,堆积密度取决于粉末颗粒的密度和粉末床中颗粒的空间布置。堆积密度以克...
This part is about USP 616 Method II. A scott volumeter is a popular device used to measure the bulk density of bulk powders. AS-200 is a gift product ofAIR-200 Air jet sievewhich has been widely user in pharmaceutical applications. ...
for measuring the bulk density. repeat the procedure using 400 taps. if the difference between the two masses obtained after 200 and 400 taps exceeds 2%, carry out a test using 200 additional taps until the difference between succeeding measurements is less than 2%. calculate the tapped density...
Bulk density and tapped density of powders — pronounced preferred orientation effects ; — the phase has not been filed in the database used ; — formation of solid solutions ; — presence of disordered structures that alter the unit cell ; — the specimen comprises too many phases ; — ...
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