Item Description: Gastec Tube 81L - Acetic Acid LR (0.125-25 ppm)
Measuring range is 0.25 to 10 ppm. Range can be extended to 0.125 to 0.25 ppm with 2 pump strokes and a correction factor of 1/2, and to 10 to 25 ppm with 1/2 pump stroke and a correction factor of 2.5. Box contains complete instructions.
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