Liquid Particle Counters
Common Applications for Liquid Particle Counters
- USP <788>, <787> and <789>
- European Pharmacopeia 2.9.19
- Pharmaceutical quality control
- Liquid particle contamination monitoring
- Water and process fluid testing
- Research and analytical laboratories
HIAC liquid particle counters provide accurate and reliable particle counting for pharmaceutical products, water systems, solvents, and other critical liquid applications. Designed to support particle contamination monitoring and fluid cleanliness programs, HIAC systems deliver consistent results across laboratory, manufacturing, and quality control environments.
Using proven light obscuration technology, HIAC liquid particle counters help organizations perform liquid particle counting, particle measurement, and contamination analysis with confidence. These instruments support pharmaceutical quality testing, compliance with European Pharmacopeia 2.9.19, USP <788>, <787> and <789>, fluid contamination monitoring, and water quality applications where accurate particle detection is essential.
Whether you need routine laboratory testing, regulatory compliance support, or advanced particle analysis, the HIAC 9703+ liquid particle counter offers scalable solutions for pharmaceutical manufacturing, clean utilities, industrial fluids, and research laboratories.
FAQ on Liquid Particle Counters
What is light obscuration particle counting?
Light obscuration particle counting is a measurement method that uses a laser light source to detect and size particles suspended in a liquid. It is one of the most widely used techniques for pharmaceutical particulate testing and fluid contamination analysis.
How does a liquid particle counter work?
Most liquid particle counters use light obscuration technology. As particles pass through a laser beam, they block a portion of the light. The instrument measures these changes to determine particle size and concentration.
What are USP <788> and European Pharmacopeia 2.9.19 particulate matter tests?
USP <788> and European Pharmacopeia (Ph. Eur.) 2.9.19 are a pharmaceutical standard that define requirements for measuring visible and subvisible particulate matter in injectable drug products These standards establish particle count limits and approved test methods to help ensure product quality and safety. Liquid particle counters are commonly used to perform particle count testing and support regulatory compliance.
What is the difference between liquid and air particle counters?
Liquid particle counters measure particles suspended in fluids, while air particle counters measure airborne particles within a defined volume of air. Both technologies support contamination monitoring but are designed for different sample types and applications.
What is a liquid particle counter?
A liquid particle counter is an analytical instrument used to detect, size, and count particles suspended in liquids. These systems are commonly used in pharmaceutical manufacturing, water testing, and contamination control programs.
What are liquid particle counters used for in pharmaceutical manufacturing?
Liquid particle counters are used to monitor particulate contamination in injectable drugs, biologics, parenteral products, and pharmaceutical process fluids. They help support quality control programs and particulate matter testing requirements such as USP <788>.
