AnnualReport-1927 — Page 394

Administrative Reports 行政報告書 All AI Reviewed

M (1) 48

pentoxide. Any rice yielding 0.4% or over of Phosphorus pentoxide is held to be safe from the beri-beri point of view. None of the white polished rices came up to this standard, though No. 2 Saigon Round Rice yielded 0.33% P2O5. All the brown rices passed easily, Brown Seemin rice yielding 0.67%. Samples of New Territory padi of the white unpolished type yielded 0.47%. The preparation of Vitamine B Extract for the treatment of beri-beri is at present under consideration.

Some work was also carried out on the complete analysis of Bismuthite, an ore exported in considerable quantities from Hong Kong and in which the determination of some of the impurities is a matter of great commercial importance, especially traces of tungsten, molybdenum and tellurium.

A modified method for determining the phosphorus in manganese ores was also worked out.

SAMPLING

The following sampling of ores, metals, oils etc. was done by the Laboratory sampler during the year :-

Tin 24,200 ingots Antimony metal 120 cases Antimony ore 50 cases Wood oil 29,633 containers Cassia oil 145 cases Anise oil 417 cases Bismuth ore 18 cases Tea-seed oil 1 tank Bleaching powder 60 drums Lard 3,656 cases Tallow 74 casks Wolframite 10,860 tons Manganese ore 3,752 bags Paraffin wax 250 cases Coal 1 lot Condensed milk 39 cases

MISCELLANEOUS SERVICES

In June, 1927, the assistance of the Laboratory was requested in dealing with insects in the herbarium of the Botanical and Forestry Department. It was therefore fumigated with prussic acid gas for 24 hours. The Superintendent reports that since then no insects have been observed among the books, plant specimens or in the room treated.

The filling of balloons with hydrogen gas for the Royal Observatory was another matter to which attention was given. A simple method of generating hydrogen gas was selected and a suitable apparatus supplied. Micrometric measurements were also made of fused quartz threads for the suspensions of some of the Observatory instruments.

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M (1) 48 pentoxide. Any rice yielding 0.4% or over of Phosphorus pentoxide is held to be safe from the beri-beri point of view. None of the white polished rices came up to this standard, though No. 2 Saigon Round Rice yielded 0.33% P2O5. All the brown rices passed easily, Brown Seemin rice yielding 0.67%. Samples of New Territory padi of the white unpolished type yielded 0.47%. The preparation of Vitamine B Extract for the treatment of beri-beri is at present under consideration. Some work was also carried out on the complete analysis of Bismuthite, an ore exported in considerable quantities from Hong Kong and in which the determination of some of the impurities is a matter of great commercial importance, especially traces of tungsten, molybdenum and tellurium. A modified method for determining the phosphorus in manganese ores was also worked out. SAMPLING The following sampling of ores, metals, oils etc. was done by the Laboratory sampler during the year :- Tin 24,200 ingots Antimony metal 120 cases Antimony ore 50 cases Wood oil 29,633 containers Cassia oil 145 cases Anise oil 417 cases Bismuth ore 18 cases Tea-seed oil 1 tank Bleaching powder 60 drums Lard 3,656 cases Tallow 74 casks Wolframite 10,860 tons Manganese ore 3,752 bags Paraffin wax 250 cases Coal 1 lot Condensed milk 39 cases MISCELLANEOUS SERVICES In June, 1927, the assistance of the Laboratory was requested in dealing with insects in the herbarium of the Botanical and Forestry Department. It was therefore fumigated with prussic acid gas for 24 hours. The Superintendent reports that since then no insects have been observed among the books, plant specimens or in the room treated. The filling of balloons with hydrogen gas for the Royal Observatory was another matter to which attention was given. A simple method of generating hydrogen gas was selected and a suitable apparatus supplied. Micrometric measurements were also made of fused quartz threads for the suspensions of some of the Observatory instruments.

Baseline (Original)

M (1) 48 pentoxide. Any rice yielding 0.4% or over of Phosphorus pen- toxide is held to be safe from the beri-bei point of view. None of the white polished rices came up to this standard, though No. 2 Saigon Round Rice yielded 0.33% P205. All the brown rices passed easily, Brown Seemin rice yielding 0.67%. Samples of New Territory padi of the white unpolished type yielded 0.47%. The preparation of Vitamine B Extract for the treat- ment of beri-beri is at present under consideration. Some work was also carried out on the complete analysis of Bismuthite, an ore exported in considerable quantities from Hong Kong and in which the determination of some of the im- purities is a matter of great commercial importance, especially traces of tungsten, molybdenum and tellurium. A modified method for determining the phosphorus in manganese ores was also worked out. SAMPLING. The following sampling of ores, metals, oils etc. was done by the Laboratory sampler during the year :- Tin .24,200 ingots Antimony metal 120 cases Antimony ore 50 cases Wood oil Cassia oil Anise oil .29,633 containers 145 cases 417 cases Bismuth ore 18 cases Tea-seed oil .. 1 tank Bleaching Lard 3,656 cases powder 60 drums Tallow 74 casks Wolframite Manganese ore ...10,860 tons 3,752 bags Paraffin wax 250 cases Condensed Coal 1 lot milk 39 cases MISCELLANEOUS SERVICES. In June, 1927, the assistance of the Laboratory was re- quested in dealing with insects in the herbarium of the Botanical and Forestry Department. It was therefore fumigated with prussic acid gas for 24 hours. The Superintendent reports that since then no insects have been observed among the books, plant specimens or in the room treated. The filling of balloons with hydrogen gas for the Royal Observatory was another matter to which attention was given. A simple method of generating hydrogen gas was selected and a suitable apparatus supplied. Micrometric measurements were also made of fused quartz threads for the suspensions of some of the Observatory instruments.

2026-05-07 18:20:28 · Baseline

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M (1) 48

pentoxide. Any rice yielding 0.4% or over of Phosphorus pen- toxide is held to be safe from the beri-bei point of view. None of the white polished rices came up to this standard, though No. 2 Saigon Round Rice yielded 0.33% P205. All the brown rices passed easily, Brown Seemin rice yielding 0.67%. Samples of New Territory padi of the white unpolished type yielded 0.47%. The preparation of Vitamine B Extract for the treat- ment of beri-beri is at present under consideration.

Some work was also carried out on the complete analysis of Bismuthite, an ore exported in considerable quantities from Hong Kong and in which the determination of some of the im- purities is a matter of great commercial importance, especially traces of tungsten, molybdenum and tellurium.

A modified method for determining the phosphorus in manganese ores was also worked out.

SAMPLING.

The following sampling of ores, metals, oils etc. was done by the Laboratory sampler during the year :-

Tin

.24,200 ingots

Antimony metal

120 cases

Antimony ore

50 cases

Wood oil Cassia oil Anise oil

.29,633 containers

145 cases

417 cases

Bismuth ore

18 cases

Tea-seed oil ..

1 tank

Bleaching

Lard

3,656 cases

powder

60 drums

Tallow

74 casks

Wolframite

Manganese ore ...10,860 tons

3,752 bags

Paraffin wax

250 cases

Condensed

Coal

1 lot

milk

39 cases

MISCELLANEOUS SERVICES.

In June, 1927, the assistance of the Laboratory was re- quested in dealing with insects in the herbarium of the Botanical and Forestry Department. It was therefore fumigated with prussic acid gas for 24 hours. The Superintendent reports that since then no insects have been observed among the books, plant specimens or in the room treated.

AnnualReport-1927 — Page 394

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