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In this video we show you how to take a pH measurement of your soil samples. The items we used were the pH 11 meter (35614-22), temperature probe (35613-05), and electrode 35805-01.
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Respiratory protection is graded based on efficiency. N95 rating means a respirator will be 95% efficient at removing most particulates, with the exception of oil particles. P99 rating correlates to 99% efficiency for all particles, including oils.
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