Attainment Designations Issued, Nonattainment on Hold The US Environmental Protection Agency (EPA) issued "Round 1" of final area designations under the 2015 ozone standard. The designations became effective January 16, 2018, and include only those counties, tribal areas and territories that EPA has designated "attainment/unclassifiable" - totaling 2,646 counties. The agency … [Read more...] about Regulatory News
2018 Issue 1
Q&A: Are there different ways to use radiachromic films?
By R.W. Stowe, UV applications engineering consultant, Heraeus Noblelight America LLC Since discussing the use of radiachromic films in UV+EB Technology,1 we have received a few questions on various methods of using them. There are essentially two types of radiachromic films, but the easiest to use are films or tabs whose surface is coated with a photochromic coating. … [Read more...] about Q&A: Are there different ways to use radiachromic films?