Mail-In Audiometer Calibration for Maryland Employers

Mail-in calibration for Maryland employers

Foster Special Instruments calibrates audiometers at our bench at 6941 Cornell Road, Suite B, Blue Ash, Ohio 45242, near Cincinnati. You ship the unit to us, we calibrate it to ANSI S3.6, and it comes back to your Maryland location with a calibration certificate for your hearing conservation file.

Maryland is a ground shipment away from Cincinnati, and the packing steps below keep the unit safe in transit. We calibrate most major brands whether or not you bought from us, including Benson, Tremetrics, Maico, GSI, and Welch Allyn / Hill-Rom.

Who we serve in Maryland

Maryland employers range from the biotech corridor around Rockville and Frederick to the port and heavy industry around Baltimore. Labs, manufacturing suites, shipyards, and logistics operations all keep workers in programs that need audiometric testing.

We calibrate for the employer running a full occupational health suite and for the clinic with a single portable audiometer.

OSHA and the audiometer in Maryland

Maryland runs its own state plan, MOSH, the Maryland Occupational Safety and Health program, which covers most private employers in place of federal OSHA. Federal 29 CFR 1910.95 remains the reference most programs build on, and calibration to ANSI S3.6 is the common benchmark either way.

In Maryland, as everywhere, OSHA 29 CFR 1910.95(h) ties audiometric testing to audiometers that meet ANSI S3.6. The work happens in layers, and each layer has an owner.

• Daily: your staff listens to the audiometer and tests a person with stable known thresholds. This is the employer's check.
• Annually: an acoustic calibration check. Our bench covers this.
• Every two years: an exhaustive calibration. We perform this as well.

29 CFR 1910.95(h), Appendix E

Packing and shipping your audiometer

Pack the audiometer in its original case or a padded box. Send the headphones, bone vibrator, and response switch that you use with it, because they are calibrated as a set. Include the serial number, your company name, a contact person, and the return address in Maryland.

Use a tracked, insured label for the trip out of Maryland. When the unit is back on your bench, the certificate lists the results, and a reminder goes out before the next due date.

On-site visits and booth testing in Maryland

Because Maryland is far from our Blue Ash shop, mail-in is the practical path for audiometer calibration.

If a booth in Maryland also needs its noise levels measured, call us and we will talk through what a scheduled visit would involve.

A booth in Maryland that is measured on site against ANSI S3.1 gets its result printed as the Room Acoustics Level Test section on the audiometer certificate.

Loaners and other instruments

If your audiometer needs an extensive repair, we lend you a free loaner so your testing keeps going. Programs in Maryland often send other instruments with the audiometer, which saves a second shipment.

• Spirometers and the 3 L syringes used to check them.
• Breath alcohol testers. We calibrate them and train technicians. Foster does not sell or perform drug or alcohol testing.
• Vision testers.
• EKG machines.

Maryland cities we hear from

Mail-in works from every part of Maryland. Cities such as Baltimore, Columbia, Germantown, Silver Spring, Rockville, Frederick, Annapolis, Hagerstown, Salisbury, and Bowie are all reachable the same way, and so is any town not on this list. Call 513-891-0868 or see the main audiometer calibration page for the full service.