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3M Formaldehyde Monitors 3721 and 3720 with Prepaid Analysis
Manufacturer: 3M
Item Number: 3720
Quantity: 5/Cs
Monitor w/prepaid analysis
The 3M Formaldehyde Monitor 3721 uses the proven scientific principle. It monitors personnel or work areas in health care, laboratories and in the chemical, pulp/paper, foundry and textile industries. Analysis procedure is available upon request. The monitor uses a bisulfate-impregnated filter and is analyzed by colorimetry. The 3721 can be used for 8 hour TWA sampling to meet the OSHA requirement of +/-25% accuracy at 0.5-5.0ppm. However, this monitor does not have the sensitivity for short term exposure limit (STEL) monitoring. It has an 18-month shelf life.
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