This test method describes a laboratory procedure for accelerating the aging of printing and writing paper within sealed glass tubes through exposure to elevated temperature within an oven.

The test method applies to all types of printing and writing paper whether it is plain base paper, has internal additives, is coated, is printed or contains any variants of printing and writing paper found in normal usage.

This test method specifies the sample preparation and conditions of exposure required to obtain information on the stability of paper to aging with regard to changes in mechanical strength properties brought about by exposure of such paper to elevated temperature.

This test method provides the means to compare the stability of different papers on a relative basis, but does not attempt to project the exact life expectancy for a given paper. Life expectancy depends in large part on the limits of acceptability beyond which various paper properties are no longer useful, as defined by end-users. For a given paper, those limits will be different for different end-users. This method does not provide a means to measure or to calculate such life expectancy.