CUI//PROCURE

Department of Defense

Defense Health Agency

Statement of Work

AUDIOMETRIC BOOTHS

Occupational Medicine Clinic

Naval Health Clinic Cherry Point NC

Solicitation Number:

Version: I

Date: 01 May 2026

STATEMENT OF WORK

AUDIOMETRIC BOOTHS

1. Background The effort required hereunder shall be provided in accordance with this Statement of Work with all other terms and conditions set forth herein.

The vendor shall supply, remove, install, and validate two (2) audiometric booths for diagnostic audiological testing in the Occupational Medicine Clinic at Naval Health Clinic Cherry Point, NC. Booths must meet Department of Defense standard for booth certification (Attachment I_Audiometric Test Booth Certification Form) and have a high Standard Transmission Class (STC) of 60 or above.

2. Objective

2.1. The vendor shall provide two (2) Audiometric Booths simultaneously, disassemble, remove and dispose of the two (2) existing audiometric booths, complete installation, and validations within seven (7) business days of start of installation for the new audiometric booths. In addition, the vendor shall include audiometric booth freight/shipping, loading and unloading, all labor, booth certification, and sound field calibration.

2.2. The vendor shall provide factory warranty for two (2) audiometric booths, provide annual calibrations, and certifications.

2.3. This procurement is for new Equipment ONLY; no remanufactured or “gray market” items. All Equipment must be covered by the manufacturer’s warranty.

2.4. The vendor shall be an Original Equipment Manufacturer (OEM) authorized dealer, authorized distributor, or authorized reseller for the proposed equipment/system, such that OEM warranty and service are provided and maintained by the OEM. All software licensing, warranty, and service associated with the equipment/system shall be in accordance with the OEM terms and conditions.

2.5. The system, including claims made for the product, shall be compliant with Food and Drug Administration (FDA) regulations, with respect to marketing and delivering medical products for use in the United States of America. The system shall be installed in compliance with OSHA requirements.

3. Description of Supplies/Services

3.1. Booth one (1) - Audiometric Exam Suite Booth for the Occupational Medicine Clinic: (Attachment II_Floor Plan for 4 man Audio Booth One_RM 109A) An audiometric examination suite will be used by the Audiologist/Hearing Conservation Program Manager for diagnostic evaluations. This audiometric booth shall have the maximum exterior room dimensions, as shown in the table below:

3.1.2. Refer to attached floor diagram for room dimensions (Attachment II_Floor Plan for 4 man Audio Booth One_RM 109A). The audiometric booth shall be utilized for adult employees and patients. The new audiometric booth shall replace the currently installed audiometric booth, which has well exceeded life expectancy. The booth should be

Interior (CONTROL) Interior (EXAM) Exterior Width 72 in (6ft) 76 in (6 ft 4 in) 176 in (14 ft 8 in) Length 88 in (7 ft 4 in) 72 in (6 ft) 96 in (8 ft) Height 86 in (7 ft 2 in) 78 in (6ft 6 in) 106 in (8 ft 10 in) Weight 10,350 lbs a single wall controlled/double walled exam suite, acoustically engineered with independent ventilation mounted external to the wall or roof panels. The jack panel should have cable pass through. There should be recessed incandescent lighting. Doors should be acoustic with cam-lift hinges and 32-inch clear opening. There should be isolated acoustical floor in both Control Room and Exam Room. Windows should be double glazed, laminated, safety glass 30 in x 24 in. The booth should have a sprinkler system that will be operational when fitted with proper supplies.

3.1.3. The booth shall be custom double wall, with 6 in. thick panels. The vendor shall demonstrate laboratory noise reduction of noise isolation class (NIC) 68 when tested in an accredited acoustic test laboratory in accordance with the ASTM E596-96 (2009) standard for each audiometric booth. For each audiometric booth, the noise reduction from the outside to the inside of the audiometric test chamber shall meet the following minimum noise reduction rating (NRR) values listed in the table below.

Center Frequency (Hz) 125 250 500 1000 2000 4000 8000 NIC

Sound Levels for double, wall, 6 in., thick panels (dB)

25 37 50 59 65 70 N/A N/A

3.1.4. The audiometric booth, the vendor shall test the sound absorption of the composite metal and sound-absorbing panel assembly in accordance with the ASTM C 423 standard. Each audiometric booth shall meet the minimum sound absorption values as outlined in the table below.

(Hz) 125 250 500 1000 2000 4000 NRC*

Absorption Coefficient 0.79 1.08 1.10 1.02 1.00 1.00 N/A

*NRC = Noise Reduction Coefficient

3.1.5. Additional Audio Diagnostic Booth Characteristics:

Types of Audiometric Testing

Octave Band Center Frequency (Hz) *Max SPL allowed (dB)

125 250 500 1000 2000 4000 8000 Medical Surveillance Testing (Ears Covered) - HCP (2215/16), physical exams, PHA’s, etc.

N/A

N/A

Diagnostic Audiology Testing (Ears Covered) - Headphones or insert phones

Diagnostic Audiology Testing (Ears Not Covered) - Sound field testing or bone conduction testing

3.1.6. Location of booth installation:

3907 Beachey Rd Cherry Point, NC 28533 Bldg. 3907 – Room 109A (Booth 1)

3.2. Booth two (2) -Four Person Audiometric Booth for the Occupational Medicine Clinic (Attachment III_Floor Plan for Diagnostic Booth Two_RM 105): The audiometric booth shall be utilized for audiological testing to evaluate employees enrolled in the Hearing Conservations Program Medical Surveillance Audiometric Testing. The audiometric booth shall be capable of testing four (4) employees at a time. The audiometric booth shall be designed with double wall construction. The audiometric booth shall have the maximum exterior and interior dimensions, as shown in the following table:

Requirement Exterior Dimensions Interior Dimensions Width 112 in. (9 ft., 4 in.) 88 in. (7 ft., 4 in.)

Length 84 in. (7 ft.) 60 in. (5 ft.)

Height 97 in. (8 ft., 1 in.) 78 in. (6 ft., 6 in.)

Weight 7,280 lbs

3.2.1. Refer to attached floor diagram for room dimensions (Attachment III_Floor Plan for Diagnostic Booth Two_RM 105). The new audiometric booth shall replace the currently installed audiometric booth, which has exceeded life expectancy. The audiometric booth shall include one (1) 32 in opening acoustic door with Cam lift hinges, one (1) roof-mounted, variable speed ventilation circulation fan. Additionally, the height for the exterior dimension of the audiometric booth shall accommodate for the roof-mounted variable speed ventilation circulation fan. The audiometric booth shall include an isolated acoustic floor, which is situated above the actual flooring of the facility room, to ensure defection of low frequency vibration noise during testing. The vendor shall provide electrical and ventilation utilities that are roof-mounted and accessible. The vendor shall ensure booth is equipped with fire sprinkler system.

3.2.2. The audiometric booth shall include four (4) duplex outlets. The audiometric booth shall be double wall, at least 4 in. thick panels. The vendor shall demonstrate laboratory noise reduction of noise isolation class (NIC) 68 when tested in an accredited acoustic test laboratory in accordance with the American Society for Testing and Materials (ASTM) E596-96 (2009) standard, and the values in the following table:

(Hz) 125 250 500 1000 2000 4000 8000 NIC

Sound Levels for double wall, 4 in., thick panels (dB)

40 55 78 87 97 100 89 64

3.2.3. The audiometric booth shall meet or exceed the sound absorption in accordance with the American Society for Testing and Materials (ASTM) C423-84a standard, and noise reduction in accordance with the ASTM E-596 standard, and the values in the following table:

(Hz) 125 250 500 1000 2000 4000 NRC*

Absorption Coefficient 0.79 1.08 1.10 1.02 1.00 1.00 1.05

*NRC = Noise Reduction Coefficient

3.2.4. The audiometric booth shall meet the sound transmission class values in accordance with the ASTM E90-04 standard, and the values in the following table:

(Hz) 125 250 500 1000 2000 4000 8000 STC

Sound Transmission Class (STC)

48 60 69 79 79 80 85 71

3.2.5. Location of booth installation:

3907 Beachey Rd Cherry Point, NC 28533 Bldg. 3907 – Room 105 (Booth 2)

3.3. Delivery:

3.1. Delivery will be accepted on site located at NHCCP Occupational Health Clinic, 3907 Beachey Road, Cherry Point, NC 28533-0023. This includes, but is not limited to, the following:

3.2. Trucks cannot be left unattended and must be removed from unloading area after unloading.

3.3. Drop shipping is not accepted. All deliveries must be received and handled by installer(s).

3.4. NHCCP will not provide equipment, tools or labor to assist in deliveries. All necessary equipment and manpower must be included in quote.

3.5. NHCCP will not provide on-site storage for this requirement. Any damage to the NHCCP facility and/or furniture being delivered must be repaired within 30 business days at the Contractor’s expense.

3.6. The Contractor is responsible for providing the Government with a list of names and type of Government identification that will be used to enter and exit the facility.

3.7. The Contractor is responsible for notifying the NHCCP COR in advance of arrival and departure, providing review of all products and site conditions before signing off.

3.8. Work is to be performed between 8:00am and 4:00pm on weekdays unless specifically coordinated otherwise.

4. Basic Procedures for Audiometric Booth Certification Refs: (a) NMCPHC TM6290.91–2 Rev. B IHFOM, Chapter 5 (Attachment IV)

(b) NMCPHC TM6260.51-99-3 Navy Medical Department HCP Procedures dated July 2020 (Attachment V)

4.1. Background Information

• All audiometric booths require, at minimum, annual certification (365-day interval).

• Coordination with an Audiologist is critical to clearly identify what type(s) of audiometric testing is conducted in the booth, as there are three distinct approval criteria depending on booth purpose.

• If audiology testing will be conducted down to -10 dB hearing level (HL), then ambient noise levels in the booth must be at least 3 dB lower than maximum permissible ambient noise levels (MPANLs).

4.2. Procedures

• At a minimum, a Type I sound level meter with octave band filter/analyzer is required. The SLM, OBA and microphone must be capable of measuring at least 3 dB below the applicable criteria “Max SPL” values listed in the table on the certification form. Frequently, SLM, OBA and microphone ensemble will not meet these stringent criteria specified for “Diagnostic Audiology Testing, Ears Not Covered (sound field & bone conduction testing). The SLM, OBA, microphone, and calibrator must each have been professionally calibrated within one year.

• Obtain measurements inside the booth during normal operational conditions during activity levels that are representative of anticipated use conditions, including internal conditions (lights and ventilation turned on).

• Take readings at all frequencies listed on the form, measuring one octave below the lowest frequency to be tested. For example, record the sound pressure level at 125 hertz (Hz) if the clinician tests at 250 Hz and above.

• Perform pre and post-field calibration of the sound level meter.

• Obtain octave band readings in the “Linear” or “All Pass” setting, slow response mode. Significant errors occur if the “A” weighting network is engaged.

• Sit in the patient’s chair with sound level meter held away from your body at head height.

• Select the desired octave band, dial in slow response, and take the reading. Record results for each required octave band.

• For multiple station booths, check levels at seats closest and furthest from the door, and record the higher values.

• Have someone talk outside the booth to see if the booth is certifiable under that condition. If external conversation precludes valid testing, annotate this on the certification form.

• Record all values and document all equipment data on the form. Sign, date, and post the certification on the exterior of the booth or on an adjacent wall. Retain a file copy.

• For MOHCAV/MOHCAT booths, follow same procedures as above. Conduct certification procedure at the location most often used (the major customer). Realistic external noise/activity should be in effect for an accurate and meaningful certification.

o It is impractical to re-certify mobile booths each time they are moved to a different location, however, readings may be taken at each of the primary customer locations.

o Occasional cross-traffic, generators, flyovers, and small crafts pier-side all have the potential to invalidate test results. Some alternatives to ensure test validity:

Conduct/document booth certification at each prospective test location in worst case conditions

Do a test audiogram (on a normal listener) at each location prior to beginning patient care

• Shipboard booths that were certified pier side cannot be used underway until they have been evaluated under representative underway conditions. Type of conditions should be annotated.

• Any significant new noise (inside or outside of the booth) or relocation of the booth requires recertification.

4.3. Troubleshooting Non-Certifiable Booths

• If low frequencies fail certification, re-check ambient levels with the fan turned off. If fan noise is determined to be the problem, then initiate fan repair or replacement.

• Electrical lighting may be a source for low frequency noise in the form of 60-cycle hum, with harmonics migrating into the 500 Hz test range. Initiate repair or replacement

• Leaks may be occurring around the jack panel. Sound attenuating material should be carefully packed around the wiring to seal the opening. Contact Biomedical Repair staff to conduct continuity checks and clean/replace jacks and plugs as needed.

• Door seal problems may occur due to hardened or worn-out foam seals. These can be replaced. The door may also be hung improperly.

• If the above actions do not solve the problem, consider removing/relocating external noise sources, relocating the booth, adding vibration dampers aboard ship, or obtain a replacement.

• Evaluate internal noise sources (chairs/stools, privacy curtains, etc.). Carpeting/rubber mats may dampen noise.