supply of cod digester,autoclave,hot plate rectangular , supply, installation and demonstration of laboratory hot plate as per attached technical spe cification annexure-c. make- thermo fisher scientific, ika, velp scientifica, labtech or equivalent. [ warr anty period: 24 months after the date of delivery ] ] , supply, installation, demonstration and training of vertical autoclave at consignees premises as per attached technical specification annexure-b. make- bio-technics india bti, jaisbo, borosil scien tific or equivalent. [ warranty period: 30 months after the date of delivery ] ] , supply and installation of cod test apparatus as per attached technical specification anne xure-a. make-hanna instruments, labwan, borosil scientific or equivalent [ warranty period: 30 months after the date of delivery ] ]