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  • Spectra Tech Ltd, Onsite, On Site, Field Testing Services, Ordinance, Zoning Compliance, monitoring, workplace, in-plant, Environmental Impact / Community Noise Monitoring & Assessment, Expert Witness Testimony, Workers Comp Claims Investigation, Apartment, Condominium, multi-family residential, Sound, Acoustics, Audio, Noise Control, Vibration, Light pollution, glare, footcandle, lux, Reverberation Time, RT60, Noise Criteria, NC, Room Criteria, RC, Noise Isolation Class, NIC, Field Impact Isolation Class, FIIC, Field Sound Transmission Class, FSTC, Field Ceiling Attennuation Class, FCAC, Speech Articulation Index, AI, Speech Intelligibility Indexes, SI, SISK, SISF, Chanaud, Privacy Index, PI, Sound system tuning, sound masking system tuning, Exterior Day-Night Average Sound Level, Ldn, Equivalent Continuous Sound Level, Leq, SCIF, Sensitive Compartmented Information Facilities, DCID 6/9, Physical Security Standards, OSHA, ANSI S1.4, ANSI S1.11, ISO 3382-2:2008, ASTM E2235-04e1, ANSI/ASA S12.2, ASTM E336-09, ASTM E966-10e1, ASTM E1007-04e1, ASTM E1414-06, ASTM E1130-02e1, ANSI S3.5, ASTM WK8777, AHRI 260, AHRI 530, ANSI/AHRI 300, ANSI/AHRI 350, ANSI/AHRI 1140, CFR 1910.95 App G, HUD-953-CPD, ASTM E1014-08, ISO 1996-1:2003, ASTM E1503-06, AHRI 370, ANSI/AHRI 270, ANSI/AHRI 275, ISO 8569, AHRI 530, ANSI/AMCA 204-05, US, Richard Lemker, Nationwide, Ohio, Indiana, Kentucky, Cincinnati, Dayton, Columbus, Springfield, Bowling Green, Knoxville, Portsmouth, Louisville, Lexington, Indianapolis, Frankfort, Lima, Bloomington, Huntington, WVA, OH, IN, KY

    INTERIOR ACOUSTIC / NOISE / SOUND TESTING SERVICES:

    OUTDOOR COMMUNITY NOISE & VIBRATION / ENVIRONMENTAL IMPACT TESTING SERVICES:

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

    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

    SOUND AMPLIFICATION SYSTEM TUNING & ADJUSTMENT

    LIGHT LEVEL / LIGHT POLLUTION TESTING SERVICES:


    AC, DC, and RF MAGNETIC FIELD TESTING SERVICES:


    RELATED TEST STANDARDS

    Local Planning / Zoning / Codified Ordinances & Regulations
    (all city, county, state)

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

    Workers Compensation Claims
    (alll states)

    • 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

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

    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

    PRIMARY TESTING SERVICE AREAS:

    • Alabama - AL
    • Arkansas - AR
    • Florida - FL
    • Georgia - GA
    • Illinois - IL
    • Indiana - IN
    • Iowa - IA
    • Kansas - KS
    • Kentucky - KY
    • Louisiana - LA
    • Maryland - MD
    • Massachusetts - MA
    • Michigan - MI
    • Mississippi - MS
    • Missouri - MO
    • New Jersey - NJ
    • New York - NY
    • North Carolina - NC
    • Ohio - OH
    • Oklahoma - OK
    • Pennsylvania - PA
    • Rhode Island - RI
    • South Carolina - SC
    • Tennessee - TN
    • Virginia - VA
    • West Virginia - WV
    • Wisconsin - WI

    TESTING SERVICE ALSO AVAILABLE IN THESE AREAS:

    • Alaska - AK
    • Arizona - AZ
    • California - CA
    • Colorado - CO
    • Connecticut - CT
    • Delaware - DE
    • Hawaii - HI
    • Idaho - ID
    • Maine - ME
    • Minnesota - MN
    • Montana - MT
    • Nebraska - NE
    • Nevada - NV
    • New Hampshire - NH
    • New Mexico - NM
    • North Dakota - ND
    • Oregon - OR
    • Puerto Rico - PR
    • South Dakota - SD
    • Texas - TX
    • Utah - UT
    • Vermont - VT
    • Washington - WA
    • Wyoming - WY


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