M 73
Table LIII.
Semi-official work, 1938
Unofficial work, 1938
Examination of steamer tanks for inflammable vapour 7 25 Foodstuffs and fertilizers 11 39 Oils (fuel, kerosene and petrol) 57 125 Battery acids 29 Building materials 6 5 Water samples 1 9 Chemicals 11 2 Minerals and metals 4 289 Miscellaneous 4 21 Bio-chemical examinations 2 Toxicological examinations 8 Dangerous goods 4 Pharmaceutical samples 4 Total 130 533 Value of work done $2,957.50 $27,637.50372. Many analyses of lubricating oils from submarines were carried out in connection with corrosion of cylinder linings.
373. Unusual investigations under the head of unofficial work were: The estimation of the amount of (a) lead in locally made Chinese wine and (b) tannic acid in beer.
Sampling.
374. The following list gives the amount of sampling done by the Sampler attached to the laboratory.
Table LIV.
1937 1938 Tin 4,315 tons 140,436 cases Lard 3,751 tons 43,203 cases Wolfram Ore 15 tons Wood Oil 60 tons 40 tons Cassia Oil 15 drums 30 drums Firecrackers 4,076 cases 1,699 cases Teaseed Oil 2,010 samples Water Samples 1,702 samples