As PISA informed us to clarify regarding the glass that has been installed is the same as the owner approved, Meinhardt report/comment, NCR refer to the colour of the glass there are no other test for the colour difference to be carried out and request us to submit Site Instruction.
According to the condition of External façade contract 2.3 as PPS have authority to instruct the contractor (PISA) paid for the testing cost by themselves and 2.7 all document from PPS, an order effect to contractors, following the contract.