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 Port of London]
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Date. 1932. | Sample. | Analyst's Report. | Action taken. | |
---|---|---|---|---|
Feb. 18 | Canned Cod's Roe | Tin compounds equivalent to 0.52 grains of tin per pound. | Consignment released. | |
„ 23 | Tomato Pulp | Tin compounds equivalent to 1.55 grains of tin per pound. | „ | |
Mar. 2 | Glucose | Free from the presence of preservatives, arsenic and other deleterious ingredients. | „ | |
„ 4 | Tomato Puree | This sample was found to contain tin compounds equivalent to 1.10 grains of tin per pound, and copper compounds equivalent to 0.92 grains of crystallised copper sulphate per pound. No preservatives. | „ | |
4 | „ „ | On analysis this sample was found to contain tin compounds equivalent to 1.54 grains of tin per pound, and copper compounds equivalent to 0.61 grains of crystallised copper sulphate per pound. No preservatives. | „ | |
„ 10 | Cherries in Brine | Sulphite preservative equivalent to 805 parts of sulphur dioxide per million. | „ | |
„ 10 | Nulamoline | No evidence of pollution. No nitrates were found and the quantity of chlorides was low (0.02 per cent. as NaCL), while none of the other tests carried out gave evidence of contamination from dock water. | „ | |
„ 17 | Rindless Cheese | This sample on examination was found to contain compounds equivalent to 2.7 grains of tin per pound. | Consignment destroyed. | |
Apri11 | Tomali Lobster Paste | The interior of the can was covered with paper folded over the top and bottom of the contents. The sample was found to contain tin compounds equivalent to 1/6 of a grain of tin per pound. The paint on the outside of the can was free from lead, but contained zinc. | Consignment released. | |
May 5 | Sausage | On stripping the skin from the sample, the nodules proved to be fat squeezed out of the meat. A microscopical examination of the inner surface of the skin revealed, except for the presence of numerous bacteria, nothing unusual. Preservatives and other deleterious ingredients were not detected. | „ | |
„ 6 | Canned Salmon Trout | Free from preservatives and other deleterious ingredients other than traces of tin. | „ | |
Canned Pilchards | ||||
Canned Salmon | ||||
Cherries in Brine | Sample contained sulphite preservative equivalent to 390 parts of sulphur dioxide per million. | „ | ||
„ 23 | Whole Egg | Free from the presence of preservatives. | „ | |
July 13 | Preserved Ginger | A faint trace of alcohol and some signs of fermentation, but fit for human consumption. | „ | |
14 | Canned Pilchards in Tomato Sauce. | Tin compounds equivalent to l.98 grains of tin per pound. | „ | |
„ 19 | Yeast | Free from the presence of arsenic. | „ | |
Aug. 2 | Greengage Pulp | Sulphite preservative equivalent to 1360 parts of sulphur dioxide per million. | „ | |
„ 4 | Canned Pilchards | Tin compound equivalent to 0.64 grains of tin per pound. | „ | |
Dec. 14 | Sardines in Olive Oil | This sample on examination was found to contain tin and tin compounds equivalent to 0.33 grains of tin per pound. | " | |
„ 30 | Australia Butter (Tinned) | This sample on examination gave the following results:— | „ | |
Moisture | 11.63% | |||
Beichart No | 31.3 | |||
Polenske | 2.6 | |||
Kirschner | 22.8 | |||
Acidity as Lactic Acid | 0.28 | |||
Tin compounds | None | |||
Boric Acid | 0.11 % |