|A Guide to the Establishment and Maintenance of Pesticide Laboratories in Developing Countries - Bulletin No.25 (NRI/Overseas Development Administration, 1990, 80 pages)|
|Laboratory equipment, glassware and reagents|
|Storage of pesticide reference materials (standards)|
Recurrent costs for storage of reference materials are slight and unless there is a difficulty with the operation of the freezer itself, are confined to the replacement of silica gel and any damaged storage containers (assuming sufficient were purchased initially). Silica gel requirements annually will be about 1 kg.