supply of ford cup no: b4ford cup no: b4,ford cup no: b4 (orifice diameter 3.970 +/- 0.015 ) to check the consistency/viscosity of pa ints and related products as per is:101 (part 1/sec 5/latest & with latest amendment) shall be made up of b rass along with calibration certificate for ford cup no.b4 from nabl accredited laboratory with traceability. a suitable standard stand to hold ford cup no:b4 along with spirit level(preferably circular type) with calibr ation certificate for spirit level from nabl accredited laboratory with traceability. electronic digital stop wat ch (1/100 second) for measuring the value along with calibration certificate for electronic digital stop watch from nabl accredited laboratory with traceability [ warranty period: 30 months after the date of delivery ] ] => limited