Bulk density tester EV-02s: Compliant with USP and Ph. Eur. pharmacopeias

In the pharmaceutical, food, and chemical industries, determining powder characteristics like bulk density is an indispensable step in research, development, and quality control. The EV-02s Bulk Density Tester by Electrolab is a specialized apparatus, designed in strict compliance with international pharmacopeia standards, providing a reliable and highly repeatable measurement method.

Key features of the EV-02s bulk density tester

This product is engineered to provide accurate results through a standardized design.

International pharmacopeia compliance

This is the most critical advantage of the EV-02s. The apparatus is designed and manufactured in full compliance with the specifications of the United States Pharmacopeia (USP) and the European Pharmacopoeia (Ph. Eur.), ensuring your measurement results are valid and widely recognized.

Specialized design for high repeatability

The instrument’s structure, including the top funnel with a 16-mesh screen, the glass baffle box, and the fixed distance (19 mm) from the bottom funnel to the receiving cup, is designed to ensure the powder flows into the cup uniformly and consistently. This eliminates operator-induced variability and yields highly repeatable results.

Essential tool for determining powder flowability

Bulk density is a critical input parameter for calculating powder flowability and compressibility indices (e.g., Hausner Ratio and Carr’s Index). Therefore, the EV-02s is a fundamental and essential tool for any R&D lab working on solid dosage form development.

Provides two standard density cups

The apparatus comes with two types of receiving cups with tightly controlled volumes: a cylindrical cup (25 ml) and a cube-shaped cup (16.39 ml), allowing for tests to be performed according to various standards, including ASTM.

Detailed technical specifications

• Model: EV-02s

• Compliance: USP, Ph. Eur., ASTM

• Top Funnel: 16-Mesh screen (0.56 mm wire dia, 1.03 mm opening)

• Baffle Box: 45 mm x 45 mm, stainless steel material, 4 glass baffles

• Bottom Funnel: Stainless steel

• Cylindrical Cup: Volume 25.00 ml (± 0.05 ml)

• Cube Cup: Volume 16.39 ml (± 0.2 ml)

• Distance from Funnel to Cup: 19 mm

Frequently asked questions (FAQ)

1. What is bulk density and why is it important?
Bulk density is the mass of an untapped powder sample per unit volume. It is a critical physical property that affects packaging, storage, transport, and especially the flowability and compressibility of powders during tablet or capsule manufacturing.

2. Which industries is this device for?
The EV-02s is primarily used in the pharmaceutical, food, chemical, pigment, and cement industries, and any field that needs to control the physical properties of fine powder materials.

3. What is the purpose of the baffle box?
The glass baffle box forces the powder to flow through a zig-zag path, which reduces the kinetic energy of the powder particles and prevents segregation. This ensures the powder is deposited gently and uniformly into the receiving cup, leading to a more accurate bulk density result.

4. Is this an automated device?
No. The EV-02s is a manual, mechanical apparatus. It provides a standardized method for a human operator to perform the measurement, ensuring consistency between different tests and different laboratories.

5. What does USP/Ph. Eur. compliance mean for my lab?
It means your measurement method and results are consistent with internationally recognized standards. This is crucial for quality control, product registration filings, and ensuring consistency in manufacturing.