JCP R20 Newsboard February 1, 2008 Miscellaneous Board FSC 9310 Use Information: This paragraph is informational only and is not exclusively definitive of the end use. For backing of pads and tablets and top and bottom protection in packaging. Stock: Not less than 80% postconsumer fiber. Any percent over 80 percentage points, is encouraged, provided that the requirements of this Standard are met. Basis weight: 26 by 38 inches, 50 pounds (number) sheets …. …………. …………… 100 A tolerance of +5% shall be allowed. Bursting strength: Average not less than (lb/in2) ………………………………….… 50 Thickness: Average (mils) ……………… 20.0 A tolerance of -0.001 inch and +0.002 inch shall be allowed. Curl: Paperboard shall lie flat with either no tendency to curl or with a curl, which can be overcome, under reasonable working conditions. General appearance: The surface and cleanliness shall conform to the standard sample(s) established by the Government. Testing: Shall be conducted in accordance with methods in part 2, Government Paper Specification Standards. The acceptance criteria Part 4 shall apply.