 | Charles Carroll Brown - Cement - 1902 - 764 pages
...— Half a gram of the cornent is to be weighed out in a platinum crucible and blasted 15 minutes. The loss by weight, which is checked by a second blasting of 5 minutes, is loss on ignition. Other Tests. — Bending, adhesion, abrasion, resistance to freezing and resistance... | |
 | Chemistry - 1902 - 594 pages
...Half a gram of the cement is to be weighed out in a platinum crucible, and blasted fifteen minutes. The loss by weight, which is checked by a second blasting of five minutes, is the loss on ignition. BS CUSHMAN. flodifications of Hempel's Gas Apparatus. BY THEODORE... | |
 | W. Purves Taylor - Cement - 1905 - 344 pages
...is to be weighed out in a platinum crucible, placed in a hole in an asbestos board so that about 3-5 of the crucible projects below, and blasted 15 minutes,...distilled water by evaporation and his reagents by appropriate tests before proceeding with his work. APPENDfX C. Standard Cement Specifications of the... | |
 | Portland Cement Association - Cement - 1905 - 44 pages
...to be weighed out in a platinum crucible, placed in a hole in an asbestos board so that about 3 / 5 of the crucible projects below, and blasted 15 minutes,...distilled water by evaporation and his reagents by appropriate tests before proceeding .wtih his work. * Evaporation to dryness is unnecessary, unless... | |
 | Charles Carroll Brown - Cement - 1905 - 384 pages
...The loss by weight, which is checked by a second blasting of five minutes, is the loss on ignition. Recent investigations have shown that large errors...distilled water by evaporation and his reagents by appropriate tests before proceeding with his work. METHODS OF TESTING OF THE CORPS OP ENGINEERS, US... | |
 | Edwin Clarence Eckel - Cement - 1905 - 802 pages
...weighed out in a platinum crucible, placed in a hole in an asbestos board so that about three fifths of the crucible projects below, and blasted 15 minutes,...second blasting of 5 minutes, is the loss on ignition. Note. — Recent investigations have shown that large errors in results are often due to the use of... | |
 | W. Purves Taylor - Cement - 1905 - 348 pages
...is to be weighed out in a platinum crucible, placed in a hole in an asbestos board so that about 3-5 of the crucible projects below, and blasted 15 minutes,...weight, which is checked by a second blasting of 5 mir.utes. is the loss on ignition. May, 1003: Recent investigations have shown that large errors in... | |
 | Charles Carroll Brown - Cement - 1905 - 440 pages
...weighed out in a platinum crucible, placed in a hole in an asbestos board so that about three-fifths of the crucible projects below, and blasted 15 minutes,...by weight, which is checked by a second blasting of five minutes, is the loss on ignition. Recent investigations have shown that large errors in results... | |
 | Frederick Putnam Spalding - Cement - 1906 - 346 pages
...— Half a grain of the cement is to be weighed out in a platinum crucible, and blasted 15 minutes. The loss by weight, which is checked by a second blasting of 5 minutes, is the loss on ignition." ART. 64. TESTS FOR HOMOGENEITY. In Europe various tests have been proposed for the purpose of detecting... | |
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Recent investigations have shown that large errors in results are often due to the use of impure distilled water and reagents. The analyst should, therefore, test his distilled water by evaporation and his reagents by appropriate tests before proceeding... 
