a The HD-SPREADMASTER device, Helioplate HD6 PMMA plates and b HD-THERMASTER appliance are manufactured by HelioScreen.
c The Altisurf 500 lab workstation is manufactured by Altimet.
d The Labsphere UV-2000S transmittance analyzer and
e Ultraviolet Transmittance Analyzer Performance Validation Standards are manufactured and created by Labsphere Inc.
f Helioplate HD0 PMMA plates are manufactured by HelioScreen.