All thesEVER-COLORStshould be handled with the special care as same as
forprecise optical glass elements like lenses, prism, mirror, etc. employed
fine optical instruments.
A piece ofsEVER-WHITEtNo.9582 which had been stored for more than eight
years in the original case at room temperature with average relative humidity
and it was confirmed that the piece did show any practical change in its
of reflectance and other properties .
However, as a rule, use and keepsEVER-COLORSt in the neutral dry atmosphere
for regular measurements.
For the polished optical flat surface most of the reliable cleaning agents
fabrics specially woven are available not only for optical glass but also
COLORSt,However, before applying these procedure, surface dust must be removed
thoroughly by browing or washing lest give any scratches on the surface.
Howadays, new types of disposable texture for the purpose have been developed by
some of polymer-fiber makers in Japan.
For cleaning ground (mat) surface, ultrasonic cleaner can be used with
media, following thorough rinse to remove residual media. @
@@@Data of the reflectance and chromaticity characteristics have been obtained at room
@@@temperature, therefore, avoid usingsEVER-COLORStunder such harsh conditions
@@@as in which sudden change of temperature and uneven thermal distribution