Bulk density is the ratio of the mass of an untapped powder sample to its volume, including inter-particulate void volume. For fine, light, or non-free-flowing powders, standard pouring methods are inaccurate.
The Science of the Scott Volumeter
The Scott Volumeter (also known as Paint and Pigment Volumeter) eliminates human error and ensures standardized powder loading.
How it Works
- Funnel Loading: Powder is poured into the top funnel
- Baffle System: Powder falls through glass baffles in a zig-zag pattern, breaking up clumps and ensuring uniform speed
- Collection Cup: Powder falls into a 1-cubic-inch or 25 mL collection cup of known volume
- Leveling: Excess powder is carefully leveled off with a spatula
- Calculation: Weight of powder in cup is measured for bulk density calculation
Why Use a Scott Volumeter?
- Consistency: Baffle system ensures powder is not compacted by weight or pour force
- Standardization: Meets requirements of ASTM B329 (Standard Test Method for Apparent Density of Metal Powders)
- Versatility: Ideal for metal powders, pharmaceutical excipients, pigments, and chemicals
Key Components of Raise Lab Scott Volumeter
- Stainless Steel Construction: Durable and easy to decontaminate
- Precision Glass Baffles: Clear visibility of powder flow
- Calibrated Collection Cups: High-precision manufacturing for exact volume measurements
The Scott Volumeter follows USP <616> Method 2, EP <2.9.34-2>, DIN ISO <3923-2>, GOST <19440-94>, and ASTM B329 standards.