The calculations should be done on
scrap-paper, and should not be entered, although, of course, detail
enough must be shown to enable the results to be recalculated.
EXAMPLE OF PAGE OF LABORATORY BOOK.
______________________________________________________________
Purple Ore 5 grams
19/10/89 0.0042 grm.
0.0021 "
------
Colorimetric 0.0063 ? 20 = 0.13% Copper
______________________________________________________________
482
Tough Copper 10 grams
Feb. 1/89 10.5 c.c. Uranium.
= 0.52% Arsenic
______________________________________________________________
2082
Tough Copper 10 grams
12.7 c.c. Uranium.
= 0.63% Arsenic
______________________________________________________________
491 10 grams
Tough Copper 13.7 c.c. Uranium
Feb. 1/89
= 0.68% Arsenic
______________________________________________________________
Standard of Uranium acetate.
0.150 gram As_{2}O_{3} = 23.
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