This specification covers manifold papers used in preparing typewritten copies of permanent or semipermanent records and documents. The original, or ribbon, copy usually leaves the organization in which it originated, so the carbon copy becomes the copy of record. Requirements are given in terms of: (1) physical tests to identify potential durability in service, (2) tests related to composition of the paper that are indicative of stability, (3) for maximum life expectancy, the presence of an alkaline filler, such as calcium carbonate, to serve as a buffering agent, (4) fiber analysis, or a certificate from the supplier concerning fiber composition, and (5) a pH test. The physical properties under focus shall include grammage (weight per unit area), thickness, internal tear resistance, folding endurance, directional reflectance or brightness, and color. Additional requirements such sizing, printing properties, erasing quality, and lightfastness shall also be inspected.
1.1 This specification covers manifold papers used in preparing typewritten copies of permanent or semipermanent records and documents. The original, or ribbon, copy usually leaves the organization in which it originated, so the carbon copy becomes the copy of record.
1.2 It has been shown
1.3 The following would be expected to contribute significantly to the life expectancy of manifold papers: the use of papers with controlled acidity, or of papers manufactured under neutral or alkaline conditions, especially papers with a calcium carbonate filler that absorbs acidic gases from the atmosphere and can neutralize acidic materials formed in the aging of paper.
1.4 This specification is based on fiber sources used in the production of paper that contains no more than 1 % lignin, for papers used in archives, libraries, and other permanent records. However, under proper conditions, (see ), paper containing more than 1 % lignin may be employed for many other end uses in paper for records that are required to have a substantial life expectancy.
1.5 As indicated in Appendices and , this specification may be used as a guide.