Bulk Density Measurement Tester

The Bulk Density Measurement Tester is a precision instrument designed to determine the bulk density of powders, granules, and particulate solids. Bulk density is a critical property affecting flowability, packing, and processing performance in industries such as pharmaceuticals, chemicals, food, and materials science. The tester provides an objective, quantitative method for evaluating the mass per unit volume of particulate materials under controlled conditions.

Application

(1) Determining bulk density of pharmaceutical powders, granules, and excipients.

(2) Evaluating flow and packing characteristics of food powders, sugar, salt, and grains.

(3) Quality control of chemical powders, catalysts, and pigments.

(4) Process optimization for material handling, storage, and transport.

(5) Research and development of new powder formulations with improved flow properties.

(6) Determination of loose/poured density and comparison with tapped density for compaction studies.

Standards

(1) ASTM B212 — Standard Test Method for Apparent Density of Powders

(2) ASTM D1895 — Standard Test Methods for Bulk Density and Tapped Density of Powders

(3) ISO 60 — Determination of apparent density of powders

(4) ISO 697 — Methods for determining density of granular materials

(5) ISO 787-11 — Test methods for chemical analysis of ceramics; apparent density measurement

(6) USP <616> — Bulk density determination for pharmaceutical powders

Features

(1) Provides precise, quantitative measurement of bulk density for a wide range of powders and granules.

(2) Standard-compliant testing ensures reliable and comparable results.

(3) Fully automatic operation reduces manual intervention and calculation errors.

(4) Rapid measurement, typically completed within 5–10 seconds per sample.

(5) Data output via RS-232 interface allows easy connection to computers and printers.

(6) Environmental compensation for temperature or solution variations ensures measurement accuracy.

(7) Alarm function to indicate whether sample density meets preset limits.

(8) Versatile use with different sample volumes and measurement media, including powders and liquids.

Parameters

Accessories

(1) Standard funnel or chute for powder flow

(2) Receiving containers (100 cm³, 400 cm³)

(3) Leveling device (straight edge or spatula)

(4) RS-232 cable for computer connection

(5) Calibration weights (optional for verification)

(6) Instruction manual and compliance certificates

Test Procedures

Place the sample into the funnel or chute, ensuring a controlled flow into the receiving container.

Level the material using the leveling device without compacting the powder.

Record the mass of the material in the container using the balance.

The tester automatically calculates bulk density by dividing the mass by the known volume of the container.

Output and save results via RS-232 interface or integrated display.

Repeat measurement for multiple samples to ensure statistical reliability.

Maintenance Information

(1) Regularly clean funnels, containers, and leveling devices to prevent contamination.

(2) Periodically calibrate the balance to maintain measurement accuracy.

(3) Inspect electronic and data output connections for reliability.

(4) Avoid exposure to moisture or corrosive materials to preserve the device.

(5) Store the tester in a clean, dry environment to maintain consistent performance.

(6) Check alarm and compensation functions periodically to ensure proper operation.