bids are invited for installation supply of lab instrument material; 1 oven laboratory and industrial hot air ovens are specialized heating chambers, typically featuring stainless steel interiors (ss 304) and capacities ranging from 50 to 250+ liters. key specifications include temperature ranges from ambient to 250°c300°c, digital pid controllers, forced air circulation, and accuracy within $pm$0.5°c to 2°c. 59 2 refregerator single door refrigerators are more compact in size when compared to most other styles of refrigerators and will not take up much space. these offer a capacity in the range of less than 199 litres to as much as 350 litres and above. 14 3 ph meeter ph meters typically feature a measurement range of 0.00 to 14.00 ph, with standard resolutions of 0.01 ph and accuracy levels ranging from to ph, depending on the model. key specifications include automatic (atc) or manual temperature compensation ( ), multiple-point calibration, bnc probe connectors, and digital lcd/led displays, with high-precision benchtop models offering ph resolution. 39 4 chemical rack for laboratory chemical racks for laboratories are specialized storage units, typically made from corrosionresistant materials like aisi 304/316 stainless steel, powder-coated mild steel, or polypropylene. key specifications include adjustable shelves, load capacities ranging from per layer, and dimensions often designed for benchtop ( high) or floor-standing ( high) use. 32 5 projection microscope (light microscope) a projection microscope is a specialized light microscope designed for group viewing and educational demonstrations, featuring a built-in, typically 150-200mm diameter ground-glass 22 screen. key specifications include a magnification range from 40x up to 1000x, a 6v/20w or 12v/100w halogen/led light source, and achromatic objectives (e.g., 4x, 10x, 40xsl, 100x). 6 electrophoresis electrophoresis systems generally include a horizontal (dna/rna) or vertical (protein) tank, casting accessories, and a power supply. common specifications include 100- 300v capacity, 4-400ma current, uvtransparent gel trays ( to ), 1.0–1.5 mm thickness combs (8-60 wells), and ce certification. 33