London's Pulse: Medical Officer of Health reports 1848-1972

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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

Croydon 1931

[Report of the Medical Officer of Health for Croydon]

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Table: Pasteurised Milk.

Pasteurised Milk.

Samples from licensed dealers 106

Table: The following tables summarise the result of the bacteriological examinations of Certified, Grade A (Tuberculin Tested), Grade A and Pasteurised samples, from 1st January to 31st December, 1931:—Table XXV.

The following tables summarise the result of the bacteriological examinations of Certified, Grade A (Tuberculin Tested), Grade A and Pasteurised samples, from 1st January to 31st December, 1931:—

Table XXV.

CERTIFIED MILK.Present.Absent.Over 30,000 per c.c.Under 30,000 per c.c.Present in 1/10 c.c.Not present in 1/10 c.c.Present.Absent.Present.Absent.Exceeding a trace.Not exceeding a trace.
Tubercle bacillus...3
Total number of bacteria...3
Bacillus Coli12
Blood...3
Pus..3
Detritus...3
...3...312...3...3...3

Table: The above 3 Certified Milk samples contained total bacteria per c.c. as follows:—

The above 3 Certified Milk samples contained total bacteria per c.c. as follows:—

0—1,0001
1,000—5,0001
5,000—10,0001
10,000—20,000—
20,000—30,000—
Over 30,000—
3

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Under the Regulations Certified Milk must not contain more
than 30,000 bacteria per c.c.