APPENDIX. 
LABORATORY EQUIPMENT. 
The necessary equipment for a small laboratory about to engage in 
the ordinary routine testing and inspection of bituminous materials 
is given in the following list. The maximum cost, exclusive of 
platinum ware, solvents, ad chemicals, should not emcee $300, and 
the material ae no foupt be purch saad at a lower figure by secur- 
ing bids on the entire equipment from several of the chemical supply 
omer: 
For the extraction of bituminous ageregates, the recovery of the 
bitumen, and examination of the aggregates, the additional equip- 
ment deseribed for that work will be required at an additional cost of 
approximately $150. 3 / 
APPARATUS, 
lanalytical balance, capacity 100 grams, sensitive to 0.1 milligram. 
1 set of weights, 50 grams to 5 milligrams, with rider. 
1 rough balance, capacity 1 kilogram, sensitive to 0.1 pram. 
1 stop watch. 
i Engler viscosimeter. 
1 penetrometer, with seconds pendulum or metronome, 
1 New York State Board of Health oil tester. 
1 open cup oil tester with Bunsen burner. 
1 aluminum float with 3 brass collars. 
1 cubical brass mold. 
1 brass plate 5 by 8 centimeters. 
i metal cover for melting point apparatus. 
1 constant temperature oven. 
1 thermo-regulator. 
1 hot plate 14 by 18 inches. 
1 steam bath. 
1 smal! drying oven. 
6 Bunsen burners. 
1 pinchcock. 
4 iron tripods. 
4 iron ring supports. 
3 rings for ring support, 7.5 centimeters in diameter, 
3 condenser clamps. 
3 burette clamps. 
6 pieces of wire gauze, 10 by 10 centimeters. 
2 enamel-ware dishes, 3 inches deep by 9 inches in diameter. 
1 tin shield. 
6 1-pint tin cups, seamless. 
6 1-quart tin cups, seamless. 
12 tin boxes, 6 centimeters in diameter by 2 centimeters deep. 
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