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η Push-Button | Quantitative 4 Analysis · . . known as the Coleman 25 Photo-Hemoglobinometer, provides an analysis in about three minutes, and the result is read directly from the scale in grams of hemoglobin per 100 ml. of sample. There are no slides to prepare and no references to graphs or tables. Size of sample required for a test is 0.02 ml. of blood, which can be taken from a finger puncture. The instrument is powered by batteries which provide energy for 300 to 600 determinations, and which are easily replaced. P-13
Picker Gardray Radiation Badges 1 wide intensity range Records exposures low as 50 mr, high as
