Project 2117, ISO/IEC 10995:2008 - Information
technology - Digitally recorded media for information interchange and storage
- Test method for the estimation of the archival lifetime of optical media
ISO/IEC 10995:2008 specifies an accelerated aging test method for estimating
the life expectancy for the retrievability of information stored on recordable
or rewritable optical disks.
This test includes details on the following formats: DVD-R/-RW/-RAM, +R/+RW.
It may be applied to additional optical disk formats with the appropriate
specification substitutions and may be updated by committee in the future
as required.
ISO/IEC 10995:2008 includes the following:
stress conditions;
assumptions;
ambient conditions:
controlled storage condition, e.g. 25 øC and 50% RH, using Eyring
model,
uncontrolled storage condition, e.g. 30 øC and 80% RH, using Arrhenius
model;
evaluation system description;
specimen preparation;
data acquisition procedure;
data interpretation.
The methodology includes only the effects of temperature (T) and relative
humidity (RH). It does not attempt to model degradation due to complex failure
mechanism kinetics, nor does it test for exposure to light, corrosive gases,
contaminants, handling, and variations in playback subsystems. Disks exposed
to these additional sources of stress or higher levels of T and RH are expected
to experience shorter usable lifetimes.