Introduction: Some particle size instruments determine the size of individual particles. They are single-particle counters. Some instruments determine the surface area as a function of particle size. Some instruments determine mass or volume vs size. And some instruments determine various functions of scattered light intensity as a function of size. All can produce particle size distributions. And, in principle, one can transform from one type to the other in order to compare results. For example, if a measurement with a single particle counter produced a differential number-weighted Size distribution and you wanted to compare the results to a measurement with another type of instrument that produced a differential volume-weighted size distribution, what would you do?
To receive the requested information from Testa Analytical, complete and submit the form below.
Your message has been forwarded to our team and we will reply as soon as possible. Thank you for your patience.
Testa Analytical uses cookies to distinguish you from other users of our website. This helps us to provide you with a good experience when you browse our website and also allows us to improve our site.
A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer's hard drive.
We use different technologies e.g. to measure the use and efficacy of a website, for authentication or to simplify website navigation. Cookies are one such technology. A cookie is a data element which a website sends to your browser. The cookie is saved on your system as an identifying piece of information that identifies your system.
Visitors' IP addresses are captured on our websites for the analysis of malfunctions, the administration of the website and the attainment of demographic characteristics. Furthermore, we use IP addresses and, as necessary, other information which you have made available to us on this website or by other means to find out which of our website are being visited and what topics interest our visitors.
Most browsers are now set by default to accept cookies automatically. However, you can also limit the use of cookies via your browser setting. We recommend that you accept cookies because cookies enable you to use several of the functions on our websites. Not accepting cookies may disrupt necessary functions on our websites. For details, see https://cookiesandyou.com/.
© 2026 TESTA Analytical Solutions e.K. All rights reserved.