Particle Size

Dynamic Light Scattering Problems and Solutions: Unexpected Results and False Positives

Have you ever wondered why your Dynamic Light Scattering (DLS) results occasionally and without obvious cause don’t meet your specifications? The answer might lie in the technique’s unique relationship with sampling probabilities and false positive results. To truly

Automotive parts particle analysis
Particle Size

Automotive Part Cleanliness

Understanding the nature and composition of particles present both on and within automotive components is a critical analytical testing service PTL provides the automotive industry. Particles released from mechanical parts not only can shorten the life of the

Jorie Kassel at International Powder & Bulk Solids Conference
Particle Size

PTL Shares Particle Characterization Insights at The Powder Show

On April 25th, 2023, Particle Technology Labs’ Laboratory Division Manager, Jorie Kassel*, attended the International Powder & Bulk Solids Conference & Exhibition where she gave a presentation detailing the many techniques available for particle size and shape characterization

Medical device cleanliness testing is used on catheters
Particle Size

Medical Device Cleanliness Testing at PTL

Determining the size and number of particles found on and within medical devices is important for, hopefully, obvious reasons. Particles released from an intravenous or implanted device can cause increased health risks in a patient. These particles can

Dynamic Light Scattering
Particle Size

Dynamic Light Scattering: Frequently Asked Questions

Dynamic Light Scattering (DLS), Photon Correlation Spectroscopy (PCS), or Quasi-Elastic Light Scattering (QELS) – this technique goes by many names, but what does it measure, how is it measured, and what do the results mean? From John Tyndall’s

Seiving
Particle Size

An Overview of Sieving

Enmeshed in the World – An Overview of Sieving Sieving is an analytical technique that has withstood the test of time due to its excellent ability to quickly provide the particle size distribution over a wide analytical range.

SPOS/LO for Particle Size and Count
Particle Size

SPOS/LO for Particle Size and Count

Single Particle Optical Sensing (SPOS) is widely used across a variety of industries due to its excellent resolution, wide dynamic range and high accuracy. The term SPOS and Light Obscuration (LO) are often used interchangeably in the particle

Particle Size

FAQs on Particle Size Distribution Results from Particle Counters

Have you ever requested a particle size distribution test from PTL and received two sets of data: number-weighted and volume-weighted—only to wonder why and which one is better? A fish tank analogy helps explain the difference. Picture a

Particle Size

Our Roots as Experts in PM10 and PM2.5 Testing

Did you know Particle Technology Labs began as a testing service for companies needing to meet EPA environmental safety standards? While we are most known today for our testing for the pharmaceutical industry and our commitment to cGMP