Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Barking]
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ICE CREAM METHYLENE BLUE PROVISIONAL GRADINGS
Grade 1 | Grade 2 | Grade 3 | Grade 4 |
---|---|---|---|
27 | 5 | — | — |
Total No. of Samples | 0%-5% | 5%-10% | 10%—15% |
---|---|---|---|
14 | — | 7 | 7 |
Total No. | Satisfactory | Unsatisfactory |
---|---|---|
2 | 2 | — |
Satisfactory | Unsatisfactory |
---|---|
24 | 5 |
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