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ISO 5
ISO
5
is an
international standard
for
density
measurements
in
photography
and
graphic technology
. The most
recent
version
split
the
standard
into 4 parts:
ISO 5-1:2009
Geometry
and
functional notation
ISO 5-2:2009
Geometric
conditions
for
transmittance
density
ISO 5-3:2009
Spectral
conditions
ISO 5-4:2009 Geometric conditions for
reflection
density