125 A ppendix Equipment fora rst-stage and medium-sized pharmaceutical quality control laboratory A list of equipment considered by the Committee to be adequate either fora rst-stage or medium-sized pharmaceutical quality control laboratory is given in the table. In the case of a medium-sized laboratory, specifi c sections are devoted to a microbiology unit and pharmacognosy/phytochemistry unit. Fora rst-stage laboratory testing herbal medicines, the additional equipment recommended is specifi ed in the table. This list does not represent any requirements which should be fulfi lled to comply with these guidelines. NMRAs or laboratories wishing to perform pharmaceutical analyses may consider the following list in the establishment or upgrading of their testing facilities. For budgetary reasons it is necessary, besides the cost of equipment, to take into consideration the cost of reference materials, reagents, solvents, glassware, other laboratory commodities and personnel. Experience has shown that for sustainability, a laboratory should allow a margin of 10–15% per year of the purchasing expenditure on equipment to cover the cost of maintenance. Table Equipment fora rst-stage and medium-sized pharmaceutical quality control laboratory