Specifications include, but are not limited to: Chain Link Fencing Requirements 1. Concrete shall be 2500 PSI compressive strength at twenty eight (28) days, using ¾" maximum size aggregate. Concrete shall conform to the requirements of ASTM C94 except that site mixed concrete 2000 PSI will be acceptable. Grout shall consist of one part Portland cement to three parts clean, well-graded sand and the minimum amount of water required to produce a workable mix. 2. Chain link fabric shall be nine (9) gauge steel wire, two (2") inch mesh, with both top and bottom selvages knuckled. Furnish one-piece fabric widths for fencing up to twelve (12’) feet high. Fabric shall be galvanized, ASTM A3902, Class I, with not less than 1.2 oz. zinc per square foot of surface. 3. Pipe framework shall be standard weight (ASTM A120, Schedule 40 and Federal Specification RR-F-191/3), "hot dipped" galvanized steel pipe, internally and externally, with not less than 1.6 oz. zinc per square foot of surface.