10A NCAC 14J .1526        MATERIAL TESTS

(a)  Tool‑resisting materials that are included in jail equipment shall withstand the following tests:

(1)           A load test of not less than 6,000 lbs. applied at the midpoint of heat‑treated 7/8 inch or one inch diameter double‑ribbed round tool‑resisting bar resting horizontally on two supports spaced 12 inches apart.  The load shall be applied with a blunt‑end rounded to a radius of approximately 1/4 inch on the edge which is in contact with the tested bar.  The bar shall not assume a permanent set in excess of 1/4 inch and it shall not break under the load.

(2)           Tool‑resisting 7/8 inch or one inch steel bars shall not be severed within six hours by using six hacksaw blades, and it shall not be pierced by using six 1/8 inch bits, used either in a hand‑operated or motor‑driven drill.  The hacksaw blades and bits in this test shall be the standard type found in institutions.

(b)  Open‑hearth steel shall be the type produced for corrections use and it shall have a chemical composition that is within the limits adopted by the Association of American Steel Manufacturers for open‑hearth bars and shapes.

 

History Note:        Authority G.S. 153A‑220; 153A‑221;

Eff. June 1, 1990;

Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. January 5, 2016.