First Time Here?
If you are new to proficiency testing or just new to HN Proficiency Testing, this is the place where you can find information on proficiency testing in general and the way we operate our proficiency testing schemes in particular.
This page discusses what proficiency testing is. It also has the definition of the En-value, which is the metric we use to judge laboratory performance.
How we do business.
This page has an overview of our process and helps you understand how our process works.
On this page we have collected some questions we think are important to ask of a proficiency testing provider along with our answers to those questions. If you are just starting to participate in proficiency testing, this is a good source of information on what you need to look out for, when you choose a proficiency testing provider.
On this page there are link to samples of the reports we provide, so you can see if they provide the information you need. This also gives you a chance to contact us and ask questions before we start, if you are not sure what the information means.
This pages contains links to a number of papers about various aspects of proficiency testing.
This page contains a brief discussion of the other services we offer. You might also want to visit HN Metrology Consulting.
Yes, we have been accredited by A2LA since 2002.
This page contains our pricing.