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Two samples of ordinary undesignated milk with the following results:—
Sample No. 24.
B. coli present in 0.001 c.c.m.
Colonies growing at 37° C.—434,000 per c.c.m.
„ „ 22° C.—245,000 per c.c.m.
B. Sporogenes and whelchii present in 10 c.c.m.
Sample No. 25.
B. coli present in 0 001 c.c.m.
Colonies growing at 37° C.—136,400 per c.c.m.
„ ,, 22° C.—75,600 per c.c.m.
B. Sporogenes and whelchii present in 10 c.c.m.
Four samples of "Pasteurized" Milk and 1 Grade "A" T.T. Milk. The results
show that these milks did not conform to the standard laid down by the Order.
The following are the results of the examinations made by the Bacteriologist:—
Sample No. 16—Grade "A" T.T. Milk.
No. of bacteria per 1 c.c.—710,000 (a) 1/10 c.c. 63,500
(b) 1/100 c.c. 7,120
(c) 1/1000 c.c. 784 Not more than 200,000 allowed.
Presence of B. coli in 1/100 c.c. in three tubes:—
48 hrs. 72 hrs.
1. + +
2. + +
3. + + No B. coli in 1/100 c.c. allowed.
Sample No. 15—Pasteurized Milk.
No. of bacteria per 1 c.c.—627,000 (a) 1/10 c.c. 58,400
(b) 1/100 c.c. 6,250
(c) 1/1000 c.c. 672 Not more than 100,00 allowed.
Presence of B. coli in 1/10 c.c. in three tubes:—
48 hrs. 72 hrs.
1. + +
2. + +
3. + +
Sample No. 17—Pasteurized Milk.
No. of bacteria per 1 c.c.—125,000 (a) 1/10 c.c. 10,600 )
(b)1/100 c.c. 1,240
(c) 1/1000 c.c. 146 ) Not more than 100,000 allowed.
Presence of B. coli in 1/10 c.c. in three tubes:—
48 hrs. 72 hrs.
1. — —
2. — —
3. — —