Durability of printing inks

I am an artist and am looking for advice.

I am interested in learning general information about standards for
measuring and specifying the durability of artist's media. That is, are
there quantitative measures for specifying the lifetimes of various
media?  Does a standards-setting body, such as ASTM, have standards
classifying media?  For example, I am guessing that a certain printing
ink might meet ASTM standard XXXX while another ink would meet standard
YYYY for permanence when exposed to natural light of intensity ZZZZ.

I would appreciate any comments and advice, however basic, since I know
almost nothing about this subject.

Hal Bohner

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                  Conservation DistList Instance 7:81
                  Distributed: Thursday, May 12, 1994
                        Message Id: cdl-7-81-009
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