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
Total No. of Samples | Grade 1 | Grade 2 | Grade 3 | Grade 4 |
---|---|---|---|---|
21 | 21 | — | — | — |
CHEMICAL ANALYSIS FAT CONTENT
Total No. of Samples | 0%—5% | 5%—10% | 10%—15% |
---|---|---|---|
32 | - | 4 | 28 |
ICE LOLLIES LEAD CONTENT
Total No. of Samples | Satisfactory | Unsatisfactory |
---|---|---|
19 | 19 |
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