 ... twelve hours with occasional stirring. Some undissolved crystals should remain at the bottom of the vessel at the end of this time. The solution shall be neutralized by the addition of an excess of cupric oxide. The neutralized solution shall then...  Wire in Electrical Construction - Page 1241916 - 147 pagesFull view - About this book
 | 1917 - 728 pages
...excess of cupric oxide. The neutralized solution shall then be filtered before using. (See note below.) METHOD OF TESTING: Samples of wire previously cleaned...one minute. They shall then be removed, washed in clean water and wiped dry with soft cotton cloth or waste. This process shall be repeated three times,... | |
 | American Steel & Wire Co - Electric cables - 1910 - 246 pages
...excess of cupric oxide. The neutralized solution shall then be filtered before using. (See note below. ) METHOD OF TESTING. Samples of wire previously cleaned...repeated three times, making four immersions in all. Note. A saturated solution of sulphate of copper thus prepared should have a specific gravity of 1.186... | |
 | American Steel & Wire Co - Electric cables - 1910 - 244 pages
...cupric oxide. The neutralized solution shall then be filtered before using. (See note below. ) METHOD OK TESTING. Samples of wire previously cleaned with gasoline...repeated three times, making four immersions in all. Note. A saturated solution of sulphate of copper thus prepared should have a specific gravity of 1.186... | |
 | American Society of Civil Engineers - Civil engineering - 1917 - 1452 pages
...INCHES, FOB VARIOUS HEADS, IN KH-.T. 76 100 125 160 175 200 225 250 875 800 325 850 875 400 a. H£ in a glass vessel containing not less than one pint...repeated three times, making four immersions in all." A saturated solution of sulphate of copper, having a specific gravity of 1.186 and a temperature of... | |
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