INTERIOR ACOUSTIC / NOISE / SOUND / VIBRATION TESTING SERVICES:

• SOUND PRESSURE LEVEL (SPL) per ANSI S1.4, and ANSI S1.11 - 1/1 + 1/3 octave bands
• REVERBERATION TIME (RT60) per ISO 3382-2:2008 Acoustics -- Measurement of room acoustic parameters -- Part 2: Reverberation time in ordinary rooms
• REVERBERATION TIME (RT60) per ASTM E2235-04e1 Standard Test Method for Determination of Decay Rates for Use in Sound Insulation Test Methods
• NOISE CRITERIA CURVES (NC) (PNC) per ANSI/ASA S12.2-2008 Revises ANSI S12.2-1995 (R1999) Criteria for Evaluating Room Noise (HVAC Noise)
• ROOM CRITERIA CURVES (RC) per ANSI/ASA S12.2-2008 Revises ANSI S12.2-1995 (R1999) Criteria for Evaluating Room Noise (HVAC Noise)
• NOISE REDUCTION (NIC) per ASTM E336-09 Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
• TRANSMISSION LOSS (TL) per ASTM E336-09 Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
• APPARENT / FIELD SOUND TRANSMISSION CLASS (ASTC / FSTC) per ASTM E336-09 Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings

• OUTSIDE TO INSIDE TRANSMISSION CLASS (OITC) per ASTM E966-10e1 Standard Guide for Field Measurements of Airborne Sound Insulation of Building Facades and Facade Elements
• FIELD IMPACT ISOLATION CLASS (FIIC) per E1007-04e1 Standard Test Method for Field Measurement of Tapping Machine Impact Sound Transmission Through Floor-Ceiling Assemblies and Associated Support Structures
• FIELD CEILING ATTENUATION CLASS (FCAC) per ASTM E1414-06 Standard Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum
• SPEECH ARTICULATION INDEX (Al) per ASTM E1130-08 Revises ASTM E1130-02e1 Standard Test Method for Objective Measurement of Speech Privacy in Open Plan Spaces Using Articulation Index
• SPEECH INTELLIGIBILITY INDEXES (SI, SISF, SISK) per ANSI S3.5-1997 (R2007) Methods for the Calculation of the Speech Intelligibility Index
• PRIVACY INDEX (PI) per ASTM WK8777 - New Standard Test Method for the Objective Measurement of Speech Privacy for Closed Architectural Spaces (per Dr. R. Chanaud formula / R. Lemker method)
• SOUND MASKING SYSTEM TUNING per ASTM WK8777 - New Standard Test Method for the Objective Measurement of Speech Privacy for Closed Architectural Spaces (per Dr. R. Chanaud formula / R. Lemker method)

• Sound Rating of Ducted Air Moving and Conditioning Equipment per AHRI 260
• Rating of Sound And Vibration For Refrigerant Compressors per AHRI 530
• Sound Rating and Sound Transmission Loss of Packaged Terminal Equipment per ANSI/AHRI 300
• Sound Rating of Non-Ducted Indoor Air-Conditioning Equipment per ANSI/AHRI 350
• Sound Quality Evaluation Procedures For Air-Conditioning and Refrigeration Equipment per ANSI/AHRI 1140
• SOUND EXPOSURE LEVEL (SEL) per CFR Regulations (Standards - 29 CFR) Monitoring noise levels non-mandatory informational appendix - 1910.95 App G (OSHA)
• TIME-WEIGHTED AVERAGE SOUND LEVEL (TWA) per CFR Regulations (Standards - 29 CFR) Monitoring noise levels non-mandatory informational appendix - 1910.95 App G (OSHA)
• SOUND AMPLIFICATION SYSTEM TUNING & ADJUSTMENT
• We can positively identify the sources of noise by recording actual audio associated with the test data. Our system can log data in this manner for up to 1 week unattended.

EXTERIOR ACOUSTIC / NOISE / SOUND / VIBRATION TESTING SERVICES:

• DAY-NIGHT AVERAGE SOUND LEVEL (Ldn) per HUD-953-CPD -The Noise Guidebook, Chapter 5 - Noise Assessment Guidelines
• EQUIVALENT CONTINUOUS SOUND LEVEL (Leq) per ASTM E1014-08 Standard Guide for Measurement of A-Weighted Sound levels, and ISO 1996-1:2003 Acoustics -- Description, measurement and assessment of environmental noise -- Part 1: Basic quantities and assessment procedures, and ASTM E1503-06 Standard Test Method for Conducting Outdoor Sound Measurements Using a Digital Statistical Sound Analysis System

• Sound Performance Rating of Large Air-Cooled Outdoor Refrigerating and Air-Conditioning Equipment per AHRI 370
• Sound Rating of Outdoor Unitary Equipment per ANSI/AHRI 270
• Application of Sound Rating Levels of Outdoor Unitary Equipment per ANSI/AHRI 275
• Compliance with local planning and zoning restrictions
• We can positively identify the sources of noise by recording actual audio associated with the test data. Our system can log data in this manner for up to 1 week unattended.

VIBRATION TESTING SERVICES:

• MECHANICAL VIBRATION & SHOCK TESTING per ISO 8569 - - Measurement and Evaluation of shock and vibration effects on sensitive equipment in buildings.
• Rating of Sound And Vibration For Refrigerant Compressors per AHRI 530
• Balance Quality & Vibration Level Test of Fans per ANSI/AMCA 204-05 (R2012)
• Our systems can log vibration data unattended.

RELATED TEST STANDARDS

American Society for the Testing of Materials (ASTM)

• E90-09 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
• E413-04 Classification for Rating Sound Insulation
• E492-09 Standard Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine
• C634-09 Standard Terminology Relating to Building and Environmental Acoustics
• E966-02 ASTM E966 - 02 Standard Guide for Field Measurements of Airborne Sound Insulation of Building Facades and Facade Elements
• E989-06 Standard Classification for Determination of Impact Insulation Class (IIC)
• E1110-06 Standard Classification for Determination of Articulation Class

• E1111-07 Standard Test Method for Measuring the Interzone Attenuation of Open Office Components
• E1179-07 Standard Specification for Sound Sources Used for Testing Open Office Components and Systems
• E1264-08 Standard Classification for Acoustical Ceiling Products
• E1374-06 Standard Guide for Open Office Acoustics and Applicable ASTM Standards
• E1425-91 Standard Practice for Determining the Acoustical Performance of Exterior Windows and Doors
• E1433-04 Standard Guide for Selection of Standards on Environmental Acoustics
• E1573-09 Standard Test Method for Evaluating Masking Sound in Open Offices Using A-Weighted and One-Third Octave Band Sound Pressure Levels
• E1574-98 Standard Test Method for Measurement of Sound in Residential Spaces
• E2179-03 Standard Test Method for Laboratory Measurement of the Effectiveness of Floor Coverings in Reducing Impact Sound Transmission Through Concrete Floors
• E1662-95a Standard Classification of Office Serviceability - Privacy and Speech Intelligibility, Distraction and Disturbance

American National Standards Institute (ANSI)

• ANSI S1.8-1989 (R2006) Reference Quantities for Acoustical Levels
• ANSI/ASA S12.18-1994 (R2009) Outdoor Measurement of Sound Pressure Level
• ANSI/ISA S12.23.01-2002 (IEC 60079-18 Mod) Electrical Apparatus for Use in Class I, Zone 1 Hazardous (Classified) Locations: Type of Protection - Encapsulation

International Electrotechnical Commission (IEC)

• IEC 60268-16 Ed. 3.0 en:2003 Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index
• IEC 61672-1 Ed. 1.0 b:2002 Electroacoustics - Sound level meters - Part 1: Specifications

Facilities Guideline Institute

• Sound & Vibration: Design Guidelines for Health Care Facilities

International Organization for Standardization (ISO)

• ISO/TR 4870:1991 Acoustics - The construction and calibration of speech intelligibility tests
• ISO 5130:2007 Revises ISO 5130:1982 Acoustics - Measurements of sound pressure level emitted by stationary road vehicles
• ISO 9614-3:2002 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning
• ISO/TS 10811-1: 2000 Mechanical vibration and shock - Vibration and shock in buildings with sensitive equipment
• ISO 14837-1:2005 Mechanical vibration - Ground-borne noise and vibration arising from rail systems - Part 1: General guidance

American Society of Heating, Refrigeration, & Air Conditioning Engineers (ASHRAE)

• Chapter 38: Testing, Adjusting, and Balancing - HVAC Applications - 2011 ASHRAE Handbook
• Chapter 48: Noise and Vibration Control - HVAC Applications - 2011 ASHRAE Handbook

Society of Automotive Engineers (SAE)

• SAE J 1287-2008 (SAE J1287-2008) Measurement of Exhaust Sound Levels of Stationary Motorcycles

Office of the National Counterintelligence Executive

• ICD 705: Technical Specifications for Construction and Management of Sensitive Compartmented Information Facilities, Version 1.2, Chapter 9. Acoustic Protection, Paragraph C. Acoustic Testing

Central Intelligence Agency

• Directive 6/9: Director of Central Intelligence Manual for Physical Security Standards for Sensitive Compartmented information Facilities (SCIF)

Defense Intelligence Agency

• DIAM 50-3: Defense Intelligence Agency Physical Security Standards for Construction of Sensitive Compartmented information Facilities

U.S. Department of Defense

• ADV-PUB-61/103/8 Intelligibility of Speech in Noise

Federal Highway Administration (FHWA)

• Measurement of Highway-Related Noise

For a more comprehensive list of acoustical measurement variables and criteria that can be measured and / or computed, please visit Detailed Measurement Specifications & Definitions

ACCURACY:

• SOUND PRESSURE MEASUREMENTS: 1/3 octave, 0.1 dB. resolution; 4 samples/second
• REVERBERATION TIME MEASUREMENTS: 0.1 sec. resolution; 30 samples/second
• VIBRATION MEASUREMENTS: resolution to 1/64 Hz
• A/D CONVERSION: 0.05 dB. resolution; 30,000 samples/second
• MATHEMATICAL COMPUTATIONS: 0.1 dB., 0.1 second, 0.1 for integers

REPORT FORMAT:

• ALL REPORTS CONDUCTED IN STRICT ACCORDANCE WITH APPLICABLE TESTING STANDARDS

• GRAPHIC CHART (standard) OR NUMERIC DATA SUMMARY (when available) OPTIONS
• COMPUTER-BASED DATA STORAGE

ACOUSTIC FIELD TEST EQUIPMENT:

• ACOUSTIC SPECTRUM ANALYZER: 1 or 1/3 octave display, .5 Hz. to 20,000 Hz., Class 1; Flat, A scale, or C scale weighting. Detailed Specifications
• FFT SPECTRUM ANALYZER: 6400 lines of resolution, 0.015 Hz to 20,000 Hz Detailed Specifications
• LOGGING SOUND LEVEL METER: continuous recording of test data and actual audio, Class 1 Detailed Specifications
• CALIBRATED MICROPHONE: random incident, electrostatic condenser.

• REVERBERATION TIMER: 1 or 1/3 octave, RT60
• TEST SIGNAL SOURCE: equalized Pink or White Noise with amplifier; impulse (i.e. gunshot)
• COMPUTER SYSTEM: PC, color monitor, modem, A/D card, printer
• SOFTWARE: proprietary custom programs, by RJLA.
• ACCESSORIES: remote/extension cables, stands, etc.
• ALL EQUIPMENT PACKED IN A.T.A. FLIGHT CASES FOR TRANSPORTATION.