BAIRD &.TATLOCK (LONDON) LTD. 



5040 T Small Colorimeter for Drinking Water with light protection device, 2 troughs, and i 

 gauged wedge each for ammonia, nitrous acid and iron (without case, etc.) . . each 



5041 T Chemical Colorimeter, with only i gauged wedge for either chromium, copper, titanium, 

 manganese, vanadium, iron, iodine, or copper, large model . . . . . . each 



5042 T Chemical Colorimeter, large model, with one empty stoppered wedge of 16 centi- 

 metres to be calibrated by the user . . . . . . . . . . each 



5043 T Chemical Outfit, consisting of small Colorimeter with 12 centimetres gauged wedges 

 for chromium, iron, iodine, copper, titanium, and vanadium, 2 troughs, all parts 

 in velvet-lined, polished wooden case . . . . . . . . . . each 



5044' 



Chemical Outfit, same combination as No. 5043, but with large Colorimeter and large 

 wedges of 16 centimetres . . . . . . . . . . . . each 



ACCESSORIES AND SPARE PARTS. 



each 



A. 12 centimetre wedge, empty, for small colorimeter, not stoppered 



B. 15 centipietre wedge, filled but not calibrated . . . . . . ,, 



C. 12 centimetre wedge, filled and calibrated . . . . . . . . ,, 



D. 12 centimetre wedge, empty, stoppered 



E. 16 centimetre wedge, empty, for large colorimeter, not stoppered 



F. 16 centimetre wedge, filled, but not calibrated 



G. 16 centimetre wedge, filled and calibrated . . . . . . . . ,, 



H. 16 centimetre wedge, empty, stoppered . . . . . . . . ,, 



K. Spare trough for small model, usual size . . . . . . . . ,, 



L. Spare trough for small model, extra long (for ammonia and lead) . . 



M. Spare trough, small model, stoppered (desirable, but not absolutely necessary for 

 iron) . . . . . . . . . . . . . . . . each 



N. Spare trough, for large model 



0. Spare trough, extra long for large model (for ammonia and lead) . . ,, 



P. Spare trough, for large model, usual size, but stoppered . . . . 



Q. Reserve pipettes . . . . . . . . . . . . . . ,, 



R. Helmholz double plate, small . . . . . . . . . . ,, 



S. Helmholz double plate, large 



T. Subsequent adaptation of light protection device, if a colorimeter is to be adapted 

 for examination of drinking water, inclusive of extra long trough and holder for it each 



Detailed instructions are supplied, with each colorimeter. 



A special wedge is required for each examination, and it is requested to state exactly what examinations 

 are to be carried out on the apparatus, also whether the wedges are to be empty, filled, or filled and calibrated. 

 Apparatus which are to be calibrated by the users, are as a rule, supplied with empty wedge, which can of course, 

 be used for every kind of examination. 



400 

 2 14 

 280 



7 10 

 8 15 



060 

 090 

 16 

 070 

 070 

 10 

 17 

 080 

 023 

 036 





 

 

 

 

 

 



3 6 



4 



100 



CROSS STREET HATTOTST GARDETST, E;C 



922 



