Methods of Maintenance of Laboratory Equipment [antikvár]

\ 1. INTEiODUCTION Modem, progressive animal health, production and research laboratories utilize scientific instruments, technical apparatus and eguipnent of increasing ccmplexity and capital cost. Additionally, services such as electrical power, water, gas and maintenance must be of a standard necessary to provide specified inputs and the care essential for maximum efficiency and minimal failure. Correct initial . installatiai, use and subsequent routine maintenance and repair present special problems in many countries where specialized technical services are not easily obtainable and there is a scarcity of technicians or engineers possessing skilled multi-disciplinary experience. Procurement of equipment from different sources, manufacturers and countries, by either intematicxial or Government Agencies and other dcxiors, compounds the problem because of non-standardization and the complicated logistics involved in identifying, locating and obtaining spare and replacement parts. In an attempt to assist specific and non-specific laboratory staff, the following concise descriptions of methods for the maintenance of laboratory equipment, covering important items in common use, should serve as a basic guide bo the location of faults, remedial action and repair. 2. CLEAN AIR EQUIPMENT (Laminar Flow) 2.1 General Man's interpretation of what is clean par tide-free-air, is governed by v^t he can see. As an indication a special arrangement of light (as is sometimes possible) can illuminate the two million or so particles of skin that our bodies shed continuously; our breath is full of particles, exposed hair rains torrents of particles and tobacco smoke is in fact microscopic particles in numbers almost impossible to count. Bacteria and Viruses are particles with sizes of the order of 1-micron (1-micron = 0.001mm) which is quite obviously invisible to the naked eye. ? I 1 i' I I!