Alkaline Paper Advocate

Volume 8, Number 3
Oct 1995


ISO 9706

Information and Documentation - Paper for Documents - Requirements for Permanence

Characteristic

Specification

Comment

pH

7.5-10.0

All layers of the paper must meet this requirement.

Alkaline reserve(calcium carbonate equivalent)

2%

 

Tear resistance

350 mN (CD & MD) for all papers over 70 g/m2

A formula is provided for finding tear resistance value for lighter weight papers.

Resistance to oxidation

Kappa number under 5.0

This requirement limits lignin and other material that may oxidize. It takes the place of "Fiber quality" or "No groundwood or unbleached fibers" in other standards.

 [Contents]  [Search]  [Abbey]


[Search all CoOL documents]


URL: http://cool.conservation-us.org/byorg/abbey/ap/ap08/ap08-3/ap08-305.html
Timestamp: Sunday, 03-Mar-2013 21:42:41 PST
Retrieved: Sunday, 19-Nov-2017 01:26:59 GMT


[Search all CoOL documents]


URL: http://cool.conservation-us.org/byorg/abbey/ap/ap08/ap08-3/ap08-305.html
Timestamp: Sunday, 03-Mar-2013 21:42:41 PST
Retrieved: Sunday, 19-Nov-2017 01:26:59 GMT