Mfrs & Dealers in : Scientific & Industrial Laboratory Chemicals, Glass wares, Instruments & Allied Goods.
Colour Comparator with disc and box as per ASTM D-1500, range 0.5 to 4.0 and another disc range 4.5 to 8.0, division of 0.5, complete set. This would be observe by artificial day light, manual operate. Three apperture comparator with artificial day light for determining colour of lubricating oil, as per ASTM D-1500, complete with two discs and magnifying glass & lighting system with knob to compare the colour with sample against distilled water.