Tender For corrigendum : purchase of lab equipments for chemistry lab in basic engineering department - purchase, digital electronic balance /analytical balance load capacity: minimum 500 g readability: 0.01 g linearity: 0.02g display: lcd/led tare function: required top pan type power supply: 220 240 v ac, 50 hz, digital tds metermeasuring range: 0 9990 ppm resolution: 1 ppm display: lcd automatic temperature compensation (atc): required waterproof: minimum ip67 protection power source: battery operated (button cell/aaa battery), digital ph meter benchtop model ph type microprocessor/microcontroller ph range: 0 14 resolution: 0.01 ph accuracy: 0.05 ph or better combined ph electrode with temperature sensor two or three-point calibration facility temperature compensation type automatic display: lcd power supply: 220 240 v ac 50 hz warranty minimum 1 year, laboratory heating mantle (knitted glass yarn) capacity: 500ml temperature range: ambient to 350 c energy regulator/control knob: required power supply: 220-240 v ac 50 hz, electric bunsen burnerelectrically operated energy regulator/ control knob operating temperature 800 c body: stainless steel power supply source: corded electric, supplied with a heavy-duty, heat-resistant, earth-grounded, 3-pin power cord (minimum length 1.2 meters). power consumption: between 350 and 500w power supply: 220-240 v ac 50 hz, water distillation unitoutput capacity: 4 litres per hour (lph) ph value: 5.5 to 7.0 conductivity (raw water distillation):3.0 4.0 s/cm or less glassware material: borosilicate 3.3 glass (pyrex/duran equivalent) heating elements: silica- enclosed quartz heaters or chromium-plated element variants power supply: 220 240 v ac 50 hz / 60 hz, single phase automatic water level cut-off