A-A-1920A
October 31, 1985
SUPERSEDING
A-A-1920
March 15, 1982
COMMERCIAL ITEM DESCRIPTION
LUMBER, SOFTWOOD, BOARD
The General Services Administration has authorized the use of this Commercial Item Description in preference to Federal Specification MM-L-751.
This commercial item description covers all species of softwood lumber listed in Voluntary Product Standard PS 20.
Salient characteristics.
The lumber shall be in accordance with the requirements of Voluntary Product Standard PS 20.
The strength and stiffness of machine stress rated lumber shall be as specified.
The species, sizes, and grades shall be as specified.
Preservative. When specified, lumber shall be treated with a water repellent preservative. Pentachlorophenol is not allowed. However, one of the following treatments is acceptable:
1. A solution of copper napthenate.
2. A solution of zinc napthenate.
3. A solution of copper-8-quinolinolate.
4. Arsenical salts of CCA or ACA.
Fire retardant. When specified, lumber shall be treated with a fire retardant material.
Grading and marking. The dimensions, board lumber, and timbers shall be identified by the grade mark of the recognized association or independent lumber grading inspection agency authorized to grade this species. The association or independent inspection agency and the grading rules under which they grade shall be certified by the Board of Review, American National Lumber Standards Committee.
The issue of PS 20 in effect on the date of this solicitation shall be used to determine compliance with stated requirements.
Regulatory requirements. In accordance with the section 23.403 of the Federal Acquisition Regulations, the Government’s Policy is to acquire items composed of the highest percentage of recovered materials practicable, consistent with maintaining a satisfactory level of competition without adversely affecting performance requirements or exposing suppliers’ employees to undue hazards from the recovered materials.
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