JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS • : ...... .:• .• ' ' ........ :.•z_:'s•i •"" t ::•:" ' ............. '" '" .......... ...•" " '-- k ' .... .•.•... ----::Lq½/ .. - •:• • ' ., • :--. ß .. ß ..•. ..• ':::• .::'. ½, .:.• .•-. '" ..'• •.'. : ...... •:...•,• • •:•' Fig. 5. Library. micro-bMances to be employed. It •ght be different, however, if a micro- balance was envisaged. Pro,sion has been made for a photograpMc dark room which is small but adequate for the work that is being done, which includes photo-micro- gmphy. The next department is the packaging department, and here again it is freely ope•. In here is a very compact aerosol bench. It is of a design produced in the U.S.A. and it permits M1 fo•s of pressurized packs to be produced. Fottowi• this is the sMon, which has been fitted up in modern fashion similar to that employed in commercial hairdressing salons of good class (•i•. 6). The next, Stores. The problem of storing compactly the multitudinous items which are required in a cosmetic taboratory was solved by making use of the sli•ng rack system which is common usage in encneering factories, where an a•ost in•ite variety of sprin•s, nuts •d bolts etc. are kept (Fig. •). The system cuts down passages so that six rows of bins require only one p•sage at the expense of two rectan•ar spaces, which are the width of one bin •d two • depth. They are quite easy to use and appear to be fulfilling their job. The point here, of course, is that the bins must be numbered •d catMo•ed so that items can readily be found.

PLANNING AND EQUIPPING OF A COSMETIC LABORATORY .. . ,,...(2. :..(]:•:• •$•..•.. "}..: .. • . ........... . . .•..... • -•:• --• Fig. 6. View of Hairdressing Saloon. The next room is a store room for various items--a sort of lumber room --which can be used if further expansion of any department becomes neces- sary. At the end of the building there are four constant temperature rooms, 1 ø C., 20 ø C., •0 ø C. and 40 ø C. These rooms have adequate shelving to cater for all foreseeable requirements of sample storage. It is, perhaps, worthy of mention that in rooms of this description care must be taken to ensure that there is adequate free air round the samples, and for this purpose all the shelves are made of wire mesh. Further, the samples must •ot be too closely packed, otherwise air movement is inhibited. The first section of the main open laboratory is essentially for general analytical work and analytical research work in order to devise test proce- dures to enable the quality control laboratory in the factory to fulfil its function. Thus, the Products Research department is responsible for setting the specifications of raw materials, tests to be carried out during manufacture and analytical limits to which the finished product must conform. A problem which has been seriously considered in designing this labora- tory, bearing in mind its general communal atmosphere, is how far the special apparatus and special techniques should be sectionized. In particular, the analytical department had to be carefully considered since a modern analyti-