3M FT-31 Bitter Sensitivity Test Solution, Box of 6 Units

3M FT-31 Bitter Sensitivity Test Solution, Box of 6 Units

The 3M FT-31 Sensitivity Test Solution is the mandatory first step in the qualitative bitter (Bitrex) respirator fit testing protocol. Before beginning the fit test using the FT-32 solution, the safety professional must confirm that the participant can detect the bitter taste of the solution. This sensitivity check ensures the validity of the test and compliance with the requirements of Appendix A of OSHA 29 CFR 1910.134 and the Canadian standard CSA Z94.4. Each bottle contains 55 mL of concentrated solution ready for nebulization with the FT-30 or FT-10 apparatus.

3M Manufacturer Code: 7100004635, model: FT-31

The FT-31 solution is used with the sensitivity hood included in the FT-30 kit or sold separately with the FT-10 apparatus. It leaves no visible residue and dissipates quickly, making it well-suited for sensitive work environments such as industrial clinics, laboratories, pharmaceutical facilities, or occupational health testing rooms. The box of 6 bottles of 55 mL each ensures an adequate supply for multiple testing sessions without running out of stock.

Check the expiry date printed on the label of each bottle before use. Store away from excessive heat, direct sunlight, and ignition sources. Once opened, use the bottle within a reasonable timeframe. Discard any unused solution remaining in the nebulizer after each test, in accordance with the FT-30 apparatus instructions.

The FT-31 solution is part of the 3M Qualitative Fit Testing program designed to help employers meet their legal obligations under respiratory protection standards. As the first step of the test, it qualifies participants before the actual fit test with the FT-32 bitter solution, ensuring process rigour and the validity of results across the entire workforce.

FAQ - Frequently Asked Questions

What is the difference between the FT-31 and the FT-32 solution?

The FT-31 is the sensitivity solution: it is used solely to verify that the test participant can detect the bitter taste before starting the fit test. If the person cannot perceive the bitter taste during this preliminary check, the qualitative fit test cannot be validly conducted. The FT-32 is the actual fit test solution: it is nebulized around the mask while the participant performs the exercises outlined in OSHA 29 CFR 1910.134 Appendix A. Both solutions are always used together as part of a complete fit testing program.

Can I use the FT-31 solution with any fit testing apparatus?

The FT-31 solution is specifically designed for use with the 3M FT-30 or FT-10 qualitative fit test apparatus. These units include a calibrated nebulizer that produces aerosols of the appropriate particle size as required by the OSHA protocol. Using the FT-31 solution with non-compliant equipment could invalidate test results. Always ensure you have the compatible apparatus before conducting the sensitivity check.

What is the shelf life of the FT-31 solution?

The expiry date is printed directly on the label of each 55 mL bottle. It is essential to check this date before each use, as an expired solution may produce invalid results and compromise the compliance of your respiratory protection program. Store bottles at room temperature, away from heat, excessive moisture, and direct sunlight. Do not freeze. Any bottle whose solution shows discoloration or abnormal appearance should be discarded immediately.

Complementary Suggestions

To carry out a fit test in the best conditions, pair this solution with powder-free nitrile gloves (GL7005), Cee Tec safety glasses with clear lenses (YA12E93101), EARSOFT corded disposable earplugs (OA1252C), a disposable polyethylene apron to protect the technician's clothing (VT1282), and Keep Kleen 8 mil gloves (GL7008) for handling equipment.

Under the "Accessories" tab at the bottom of the page, you will find products directly related to respiratory equipment maintenance: 3M alcohol-free 504 cleaning wipes (R504), alcohol-free 7003 half-mask cleaning wipes (RN7003), and Zenith alcohol-free 503 respirator cleaning wipes (R503).

Green-colored text corresponds to hyperlinks leading to specific safety equipment or general information resources.