Borosil Pricelist 2021-22

Pipette Cleaning Dip the pipettes with their tips down, in a cylinder or tall jar of water, immediately after use. Do not drop them into the jar as this may break or chip the tips and render themuseless. A pad of cotton or glass wool at the base of the jar will help to prevent breaking of the tips. Please ensure that the water level is high enough to immerse the greater portion of all or each of the Pipettes. Then drain the Pipettes and transfer them into a cylinder or jar containing any suitable cleaning agent or any suitable detergent solution. Allow it to soak in a jar or cylinder for about half an hour. Drain the pipette and run tab water over and through themuntil all contents are removed. Soak the Pipettes in purified water for at least one hour. Remove them and dry the external surface with a cloth, shake out the water and dry in oven. After drying, place the Pipettes in a dust-fr ee drawer. For sterile applications, wrap serological and bacteriological Pipettes in an autoclavable bag and autoclave at 121⁰C for 30 mins or place them in Pipette cans and sterilise them in the dry air steriliser at 160°C for two hours. A Pipette used for transferring infectious material should have a plug of cotton placed in its mouth end before sterilising Culture Tubes · Culture tubes which have been used previously must be sterilized before cleaning. The best general method for sterilising culture tubes is by autoclaving for 30 minutes at 121⁰C (15 lb pressure). Media which solidify on cooling should be poured out while the tubes are hot. · After the tubes are emptied, brush them with a suitable cleaning agent. · Rinse thoroughly with tap water, rinse with purified water, shake out the water and dry in oven. · After cleaning before the next use, the culture tubes need to be sterilized again. · The culture tubes and culture medium can be sterilized together in one cycle or can be sterilized separately. · In the latter case, the sterile medium can be filled in the sterile cultur e tubes aseptically. Burette Cleaning Remove stopcock key befor e cleaning and wash the stopcock key separately · Wash the burette with suitable cleaning agent or any other suitable detergent solution · Rinse with tap water until all the dirt is removed. Then rinse with purified water . · Keep the cleaned burette in inverted position until dry. · Open the stopcock and keep for dr ying. · Befor e the stopcock key is r eplaced in the burette, lubricate the joint with a small amount of lubricant. · Always cover tip of burettes with butter paper or aluminium foil, when not in use. Serological Tubes Serological Tubes should be chemically clean but need not be sterile. However, specimens of blood which are to be kept for some time at room temperature should be collected in a sterile container. It may be expedient to sterilize all tubes as routine. To clean and sterilize tubes containing blood, discard the clots in a waste container and place the tubes in a large basket. Put the basket with others, in a large bucket or boiler. Cover with water, add a fair quantity of soft soap or suitable cleaning agent and boil for 30 minutes. Rinse the tubes and clean with brush, rinse and dry with the usual precautions. Note: It is imperative when washing serological glassware that all acid, alkali and detergent be completely removed. Both acid and alkali in small amounts destr oy complement and in larger amounts produce haemolysis. Detergents interfere with serologic reactions. Serological tubes and glassware should be kept separate from all other glassware and used for nothing except serologic procedures. Note: The bureette stopcock keys and glass stop cocks are not interchangeable , hence, glass key and burette bore should be marked properly to avoid mix-ups 285 an ISO 9001: 2015 certified company | BOROSIL ®