CA NO : CE (P) VIJAYAK/ /2012-13 Serial Page No : 01 ... - Bro.nic.in

CA NO: CE (P) VIJAYAK/ /2012-13 Serial Page No :66TENDER NO: CE (P) VIJAYAK/46/ 2011-2012(PARTICULAR SPECIFICATIONS CONTD…)3.1.6 Every supply of continuous sandwich panel (Wall and Roof) should accompany with the originalinvoice of the manufacturing company along with original EXCISE GATE PASS for verifying thepayment of central excise for confirmation of original supply.3.1.7 Pre-inspection of the sandwich panels (Wall and Roof) at the factory site of the manufacturer willbe carried out by a Board Of Officers to be detailed by Commander Contract before delivery of theconsignment for scrutinizing the quality of these sandwich panels. The board of officers will verifythe following aspects:-(i)(ii)(iii)(iv)(v)Whether the sandwich panel is continuous or not.Thickness of Panel for wall panel.Thickness of Panel for Roof panel.Density of PUF Insulation.Verification of Original Certificates for the above seven properties / specifications.3.2. Wall Panels (Internal/External):- All walls shall be made of inner white colour coated GI metalskin PUF panels. The thickness of PUF panels shall be 60 mm. The PUF insulation material in thepanel shall have fire retarding and self extinguishing properties as per international standard.There should not be any gap between PUF wall and roof and this should be done with suitableflushing of all joints.(a)(b)(c)All material required for the manufacture of shelter shall be new and shall comply withrelevant Bureau of Indian Standard Specification.The PUF panels are to be manufactured using high pressure dispensing machine ofrequired capacity to inject specified amount of PUF chemical into the cavity of a full panelin one shot not exceeding 25 sec duration. This is to ensure that the liquid PUF mixture issprayed into the cavity before the foaming reaction starts so that the insulation core of thepanel is formed in one piece and provides desired structural and physical properties. Thebulk density of insulation panel should be 40 Kg ±2Kg/Cum and the dispensing machineryshould be kept with a PLC controlled panel for monitoring and controlling the injection rateto assure specified uniform density requirements. The total thickness of the finishedcomposite panel should be 60 mm. The tolerance in the panel can only be on the plus side.The outer colour coated GI skin (RAL-1001) of the panels should be 0.55 mm thick TCT(Total coated thickness) with 50 micron thick PVC guard film on the finished surfaced onlyfor protection against scratches during handling and galvanization as per GR-120 IS-277.(d) The pre coated GI sheet skin should have min coating of 4.5 micron epoxy primer and 25micron polyester top coat on the finished surface and 7-8 micron Primer Alkyd Backer onbackside which is bounded to the polyurethane foam. The pre coated GI sheet shouldconform to IS 14246-1995 with manufacturer test certificates conforming to specification.(e)The PUF insulated core of these composite panels should have the following properties:-(i) Density : 40 kg/cum (± 2 kg/cum)(ii) Compressive strength at 10% deformation: 2.10kg/cm2(iii) Tensile Strength : 4.0 kg/cm2(iv) Bending Strength : 4.2 kg/cm2(v) Adhesion Strength : 3. 0 kg/cm2(vi) Dimensional Stability (48 Hours)(aa) (-) 25 degree C : 0.1%(ab) +38 degree C & 90% RH : 0.1%(ac) +100 degree C : 0.4%Signature of ContractorDated : _________________2012For Accepting Officer