Air, Water, and Food from a Sanitary StandpointJ. Wiley & sons, 1909 - 278 sider |
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Side 18
... means of the wear of furnishings and the accumulation on them of deposited par- ticles , by means of furnace - ashes and dried débris of all kinds . Only recently have the dangers of this part of the air we breathe been distinctly ...
... means of the wear of furnishings and the accumulation on them of deposited par- ticles , by means of furnace - ashes and dried débris of all kinds . Only recently have the dangers of this part of the air we breathe been distinctly ...
Side 23
... means of readily determining whether the persons in charge of the apparatus are using it to gain the results designed by the expert . As a test of how nearly practice approaches the theoreti- cal value , carbon dioxide is taken as the ...
... means of readily determining whether the persons in charge of the apparatus are using it to gain the results designed by the expert . As a test of how nearly practice approaches the theoreti- cal value , carbon dioxide is taken as the ...
Side 24
... means of simple apparatus . Such an apparatus , using candles and designed to illustrate the section of an ordinary room , is shown in Fig . 1 . In testing the efficiency of ventilation of any room or building , it is necessary to ...
... means of simple apparatus . Such an apparatus , using candles and designed to illustrate the section of an ordinary room , is shown in Fig . 1 . In testing the efficiency of ventilation of any room or building , it is necessary to ...
Side 25
... means of loose windows , cracks around doors , etc. , are to be considered . When there is great difference of temperature between outer and inner air , these allow of quite rapid change of air . Some means of rendering visible these ...
... means of loose windows , cracks around doors , etc. , are to be considered . When there is great difference of temperature between outer and inner air , these allow of quite rapid change of air . Some means of rendering visible these ...
Side 26
... means of contamination must be avoided and the occupants must be quiet , for the moving of persons causes disturbance in the air - current . There is room for great in- genuity in this part of the examination , as circumstances greatly ...
... means of contamination must be avoided and the occupants must be quiet , for the moving of persons causes disturbance in the air - current . There is room for great in- genuity in this part of the examination , as circumstances greatly ...
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Air, Water, and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1909 |
Air, Water and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1911 |
Air, Water, and Food from a Sanitary Standpoint Ellen Henrietta Richards,Alpheus Grant Woodman Uten tilgangsbegrensning - 1909 |
Vanlige uttrykk og setninger
acetic adulterated alcohol algæ alkaline ammonia ammonium amount apparatus barium hydroxide beaker boiling bottle burette butter c.c. of water carbohydrates carbon dioxide casein cent Chem Chemistry chlorine color compounds contain cubic centimeters determination digestion dilute dish dissolved distilled water Elements Engineering ether evaporate extract Fehling's solution filter filtrate flask glass grams heat hydrochloric acid ignited inches iodine laboratory Large 12mo liquid liter Manual Materials Mechanics method micro-organisms milk mineral minutes Nessler nitric acid nitrogen obtained odor organic matter oxidation oxygen phenolphthalein pipette platinum polluted portion potassium precipitate present proteids quantity residue rubber salts sample Sanitary sewage shaking sodium carbonate sodium hydroxide solids soluble solution specific gravity standard starch stopper stream substances sugar sulphate sulphuric acid surface-waters Tables temperature Text-book thiosulphate tion titration Treatise tube vanillin vegetable volume wash water-bath water-supply weight wine ΙΟ
Populære avsnitt
Side 160 - That the term blend as used herein shall be construed to mean a mixture of like substances, not excluding harmless coloring or flavoring ingredients used for the purpose of coloring and flavoring only: And...
Side 157 - That for the purposes of this act an article shall be deemed to be adulterated: In case of drugs: First, If, when a drug is sold under or by a name recognized In the United States Pharmacopoeia...