By Knechtel M. M., Richards E.F., Rathbun M.V.
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Extra resources for Mesozoic fossils of the Peruvian Andes
Maintenance, repair and modiﬁcation If equipment is to remain safe, serviceable and reliable throughout its working life, planned controlled maintenance is essential. In addition, arrangements should be in place to ensure that emergency repairs and any modiﬁcations that have to be carried out to improve the performance or safety of equipment are carried out promptly and effectively. Decontamination Equipment that has to be inspected, maintained, repaired, modiﬁed or scrapped (see below) should be in a condition that makes it safe to be handled by all those who may come into contact with it during transit or subsequent handling (MDA, 1998).
Initial inspection On receipt of a new acquisition, an initial inspection should be carried out to ensure that the equipment is complete with all the accessories and users’ operating manuals, and that it is undamaged and in proper working order. Records It is recommended that a record be maintained and kept at all times with the equipment. This record should contain brief descriptions of all inspections, maintenance, repair and any modiﬁcation. The ﬁrst entry should be of the acceptance of the equipment into service.
Cover glasses are sold in several thicknesses and sizes. Those of thickness grade No. 1, 16 mm square, are the most convenient. They are sold in boxes containing about 100 glasses. Plastic cover glasses are available. Pasteur pipettes* Glass Pasteur pipettes are probably the most dangerous pieces of laboratory equipment in unskilled hands. They are used, with rubber teats, to transfer liquid cultures, serum dilutions, etc. Very few laboratories make their own Pasteur pipettes nowadays; they are obtainable, sterile and ready for use, from most laboratory suppliers and are best purchased in bulk.