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
Hammersmith 1936
[Report of the Medical Officer of Health for Hammersmith Borough]
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| No. | Designation. | Laboratory A. | Laboratory B. | Laboratory C. | Laboratory D. | |
|---|---|---|---|---|---|---|
| 139 | Pasteurised (From churn containing 17 gallons) | 2.1 Lovibond blue units Satisfactory | 1.0 Lovibond blue units Satisfactorily pasteurised | 2.1 Lovibond blue units Satisfactorily pasteurised | 1.5 Lovibond blue units In my opinion this milk has been properly pasteurised | |
| 140 | Milk from above churn to which ½ pt. raw (T.T.) milk had been added (17 gallons - 1 pt. pasteurised + ½ pt. raw = .37% raw) | 3.4 Lovibond blue units Slight error in technique of pasteurisation | 4.3 Lovibond blue units Result, suggests inadequate temperature or holding period or admixture with small quantity of raw milk | 4.6 Lovibond blue units Unsatisfactory, and probably contains a little unpasteurised milk | ||
| 141 | From 9½ pts. of above milk (140) to which ½ pt. of raw (T.T.) milk had been added (5.35% raw) | 10+ Lovibond blue units Raw or grossly underheated | Over 30 Lovibond blue units Grossly underheated or contains a quantity of raw milk. This milk may not have been heated | Over 20 Lovibond blue units It is probably unpasteurised milk | ||