INTERIOR ACOUSTIC / NOISE / SOUND 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, and 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 E336-17a Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
• TRANSMISSION LOSS (TL) per ASTM E336-17a Standard Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
• APPARENT / FIELD SOUND TRANSMISSION CLASS (ASTC / FSTC) per ASTM E336-17a 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
• SOUND MASKING SYSTEM TUNING per Dr. R. Chanaud / R. Lemker method

CALL US IF YOU REQUIRE TESTS THAT ARE NOT LISTED ABOVE – WE CAN LIKELY PERFORM THE TESTS YOU NEED

• • COMPLIANCE WITH LOCAL PLANNING & ZONING NOISE & VIBRATION LEVEL RESTRICTIONS
  • CONSTRUCTION / DEMOLITION SITE NOISE & VIBRATION MONITORING
  • DAY-NIGHT AVERAGE SOUND LEVEL (Ldn) per HUD-953-CPD -The Noise Guidebook, Chapter 5 – Noise Assessment Guidelines
    Spectra Tech Ltd, acoustic, test instrument, data logging computer system, Noise, Criteria, Curve, NC, onsite, on-site, field, test
  • 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
  • MECHANICAL VIBRATION & SHOCK TESTING per ISO 8569 – – Measurement and Evaluation of shock and vibration effects on sensitive equipment in buildings.

We can positively identify the sources of noise by recording actual audio associated with the test data. Our system can log data and record noise unattended.

EXPERT SERVICES ARE AVAILABLE TO PRESENT THE RESULTS OF TESTING AT A PLANNING OR ZONING MEETING

HUMAN EXPOSURE TO NOISE & VIBRATION IN THE WORKPLACE / OSHA COMPLIANCE / WORKERS COMP CLAIMS INVESTIGATION

• OSHA WORKPLACE OCCUPATIONAL NOISE EXPOSURE COMPLIANCE TESTING: SOUND EXPOSURE LEVEL (SEL) per CFR Regulations (Standards – 29 CFR) Monitoring noise levels non-mandatory informational appendix – 1910.95 App G (OSHA)
• OSHA WORKPLACE OCCUPATIONAL NOISE EXPOSURE COMPLIANCE TESTING: TIME-WEIGHTED AVERAGE SOUND LEVEL (TWA) per CFR Regulations (Standards – 29 CFR) Monitoring noise levels non-mandatory informational appendix – 1910.95 App G (OSHA)
• OSHA WORKPLACE OCCUPATIONAL VIBRATION EXPOSURE COMPLIANCE TESTING: HUMAN EXPOSURE TO VIBRATION TRANSMITTED TO THE HAND per OSHA / ANSI Standard S2.70-2006
• OSHA WORKPLACE OCCUPATIONAL VIBRATION EXPOSURE COMPLIANCE TESTING: HUMAN EXPOSURE TO WHOLE-BODY VIBRATION per OSHA / ANSI Standard S2.72, ISO 2631-1
• EXPERT / WITNESS TESTIMONY SERVICES ARE AVAILABLE TO PRESENT THE RESULTS OF WORKPLACE OCCUPATIONAL NOISE AND VIBRATION TESTING AT A WORKERS COMP HEARING.

EQUIPMENT NOISE & VIBRATION TESTING SERVICES:

• NOISE CRITERIA CURVES (NC) (PNC) per ANSI/ASA S12.2-2008 Revises ANSI S12.2-1995 (R1999) Criteria for Evaluating Room Noise (HVAC Noise)
• MECHANICAL VIBRATION & SHOCK TESTING per ISO 8569 – – Measurement and Evaluation of shock and vibration effects on sensitive equipment in buildings.
• Balance Quality & Vibration Level Test of Fans per ANSI/AMCA 204-05 (R2012)
• Sound Rating of Ducted Air Moving and Conditioning Equipment per AHRI 260
• Sound Rating of Outdoor Unitary Equipment per ANSI/AHRI 270
• Application of Sound Rating Levels of Outdoor Unitary Equipment per ANSI/AHRI 275
• 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 Performance Rating of Large Air-Cooled Outdoor Refrigerating and Air-Conditioning Equipment per AHRI 370
• Rating of Sound And Vibration For Refrigerant Compressors per AHRI 530
• Sound Quality Evaluation Procedures For Air-Conditioning and Refrigeration Equipment per ANSI/AHRI 1140

LIGHT LEVEL / LIGHT POLLUTION TESTING SERVICES:

• COMPLIANCE WITH LOCAL PLANNING & ZONING LIGHT LEVEL RESTRICTIONS
• EXPERT SERVICES ARE AVAILABLE TO PRESENT THE RESULTS OF TESTING AT A PLANNING OR ZONING MEETING.

• Noise Control / Nuisance Ordinances & Regulations
• Vibration Control / Nuisance Ordinances & Regulations
• Light Level / Glare Control / Nuisance Ordinances & Regulations

• Worker noise exposure exceedances
• Worker vibration exposure exceedances

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 S2.70-2006 Guide for the Measurement and Evaluation of Human Exposure to Vibration Transmitted to the Hand
• ANSI S2.72 Part 1 – Mechanical Vibration and Shock � Evaluation of Human Exposure to Whole-Body Vibration � Part 1: General Requirements
• 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 2631-1/Amd1:2010 Revises ISO 2631-1:1997 Evaluation of human exposure to whole-body vibration – Part 1: General requirements – Amendment 1
• 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 5349-2:2001 Mechanical vibration – Measurement and evaluation of human exposure to hand-transmitted vibration – Part 2: Practical guidance for measurement at the workplace
• 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

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.

VIBRATION / IMPACT FIELD TEST EQUIPMENT:

• FLOOR TAPPING MACHINE
• FFT VIBRATION SPECTRUM ANALYZER Detailed Specifications
• COMPUTER-BASED DATA ACQUISITION SYSTEM
• CALIBRATED ACCELEROMETER: piezoelectric, range: 0.1 to 1000 g
• MOUNTING HARDWARE AND ACCESSORIES FOR VARIOUS TEST REQUIREMENTS

LIGHT LEVEL TEST EQUIPMENT:

• LIGHT METER

Lux range: 1 to 50,000, resolution to 1 lux
Foot Candle range: 0.1 to 5,000, resolution to 0.1 fc
Accuracy: + or – 4%
Light sources detected: daylight / tungsten / LED / halogen / fluorescent / sodium / mercury