Volumeter EV-02: The standard method for pharmaceutical powders

Determining bulk density is one of the most critical tests for evaluating the physical characteristics of powder materials, especially in the pharmaceutical industry. The EV-02 Volumeter by Electrolab is a fundamental apparatus, precisely designed according to international pharmacopeia standards, providing a reliable and highly repeatable measurement method for quality control.

Why choose the EV-02 volumeter?

This instrument is an indispensable tool in R&D and QC labs, thanks to its standardized design and reliable results.

Compliance with leading pharmacopeias

The EV-02 is designed and manufactured to strictly comply with the specifications of the United States Pharmacopeia (USP), the European Pharmacopoeia (Ph. Eur.), and ASTM standards. This ensures your methods and results are valid and recognized globally.

Optimized design for consistent results

The entire structure of the apparatus, from the top funnel with its standard mesh screen, the box with 4 glass baffles, to the fixed distance (19 mm) between the bottom funnel and the receiving cup, is engineered to ensure the powder flows gently and uniformly. This design minimizes variability, leading to highly repeatable results.

A foundational tool for flowability assessment

Bulk density is a basic parameter used to calculate other critical indices such as the Hausner Ratio and Carr’s Index, which help assess the flowability and compressibility of a powder – factors that are decisive for successful tableting or capsule filling processes.

Detailed technical specifications

• Model: EV-02

• 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

• 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?
Bulk density is the mass of an untapped powder sample per unit of volume (e.g., g/ml). It reflects how the powder naturally occupies space.

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

3. Is this device automatic?
No. The EV-02 is a manual, mechanical apparatus. Its role is to provide a standardized method to ensure the consistency and repeatability of the measurement when performed by a human operator.

4. What is the difference between the EV-02 and EV-02s models?
Based on the provided specifications, the EV-02 and EV-02s models are functionally and structurally identical, from the funnel dimensions and baffle box to the cup volumes. Any difference may lie in minor material or cosmetic updates. Users should consider them to be the same product line.

5. Can I use this device for industries other than pharmaceuticals?
Absolutely. Any industry that works with fine powder materials, such as food, chemicals, cosmetics, pigments, cement, etc., can use the EV-02 to control the quality of raw materials and in-process products.