subcontractor shall notify contractor not less than 10 working days, unless specified elsewhere in the agreement, in advance written notice of the date on and place at which any part of the equipment and materials or work will be ready for inspection and testing. subcontractor shall at its expense furnish promptly all facilities. tools, labor and materials necessary and required for such inspection and test,. if contractor finds that conditions are unsafe for inspection and testing at a particular location, contractor may refuse to inspection and testing until such conditions are corrected. subcontractor shall bear any additional costs resulting from such correction including costs incurred to permit subsequent inspection and testing of any portion of the work.