Specifications include, but are not limited to: NON-FRIABLE REMOVAL of approximately of floor tile and mastics. Work area to be placed under negative pressure. If at any time the on-site AST determines that the material is not of cannot be removed in a non-friable manner, he/she has the authorization to stop the project, isolate the work area and require NJAC 5:23-8 compliance for the rest of the project. Contractor is responsible for any additional charges for subchapter 8 compliance. CRITICAL BARRIERS to be sealed with single layer of 6 Mil Poly. HVAC SYSTEMS All HVAC systems located in the work area shall be shut down and sealed with critical barriers AIR FILTRATION DEVICES are to exhaust outside of building.