FSTC / ASTC Field Sound Transmission Class testing services / Apparent Sound Transmission Class – ASTM E336 – 14

FSTC (ASTC) Testing Services –Field / Apparent Sound Transmission Class Tests

FSTC (ASTC), or as it’s formally known Field / Apparent Sound Transmission Class is a double digit number that refers to the sound transmission properties of a wall structure. It may also be applied to measure the sound transmission properties of a window or door unit. Virtually all states and municipalities have set guidelines for the minimum FSTC / ASTC test rating that a building may have, and it’s a vital part of the International Building Code.  It’s not at all uncommon to find well-above-minimum FSTC / ASTC  test (and related FIIC / AIIC) ratings inserted into requests for proposals from architects and other designers especially for luxury housing. The most common standards for testing in the United States include the ASTM E90, ASTM E336 and ASTM E413 standards, while in European Union countries the ISO 140 and ISO 717 standards are used.

Performing a FSTC / ASTC test requires some specialized equipment, the first being an omni-directional sound source. This just means a sound source (speaker) that radiates sound in all directions equally, quite unlike a typical speaker which radiates most of its sound to the front. This ensures that the room is equally driven by sound pressure in all directions. Typically this is achieved by utilizing a multi-driver speaker systems that resembles a large soccer ball…think of each of the black sections as a speaker! The Bruel & Kjaer 4292 speaker is probably the best known of the current crop of omni-directional sound sources, and our personal reference unit. This unit is placed in what is called the sending room and then switched on, in order to excite the wall structure (and other structures that comprise the room) so that the resultant noise may be measured on the other side.

Secondarily, a sound level analyzer is required to accurately measure the sound in the room on the other side, which is named the receiving room. We utilize a  Bruel & Kjaer 2260 and 2270  sound level/analyzer meters running building acoustics software BZ 7204 and BZ 7229 which is capable of providing results compliant with ASTM, ISO, DIN, BS, and NBE among others.

We provide commercial and residential tenants, building managers, architects, contractors, insurance companies, and governmental agencies STC testing services and  ratings for any building. Call us today to talk about your noise transmission sound problems.

Contact us at 1-800-665-0080 to speak with a consultant today, or email us at: sales@onsiteacoustictesting.com

Before you purchase that new house or condominium…

Over the past 20 years, it’s been increasingly common for home buyers to enlist the services of a home inspector. In fact, many banks make home inspection a precondition that must be met as a part of the loan process! All of the major mechanical systems of the home or condominium should be inspected for quality and functionality, and the overall “fitness” of the building should be assessed. Even if you are just considering renting an apartment for a yearly lease, you should give consideration to having that apartment tested for both noise transmission and ambient noise within the space…if your sleep and overall well-being is important to you!

Interestingly, little or no thought is given to issues relating to noise and vibration pollution, in addition to indoor air quality. All structures will have some degree of noise transmission from the inside of the house to the world outside, and more importantly, from the world outside to the living spaces inside! Additionally, mechanical systems such as heating/cooling, and plumbing, within the house can have a surprising sonic footprint when they’re in operation.

As in many other aspects of life, the best time to ensure that your property is built with attention to noise and noise pollution issues, is BEFORE the structure is built. When we work in conjunction with your architect or general contractor, we’re able to provide the most value for your investment and provide the highest performance with the least visual intrusion.

Of course, it’s not always possible to be involved in the genesis of a building project, and most people prefer to purchase a dwelling that has already been built. That’s where we come in! We can evaluate the current noise levels and spectrum, point out to you any deficiencies that the structure may have, and give you a ballpark (or detailed) description of how the noise issues can be corrected.

Numerous studies have found links between noise exposure and stress related physical and emotional ailments, noise, vibration and indoor air quality issues can be more than just a petty irritant!

Contact us today to talk with a consultant about your prospective purchase.

Email us at: sales@onsiteacoustictesting.com

Talk to us toll free: 1-800-665-0080

Chat with us using the window to the right –>

ISO 4871 – Noise Emission Values of Machinery

If you are a manufacturer producing items for export to the EU and/or the middle east, chances are you will need to have your equipment tested to ISO 4871 standards. The 4781 standard is the noise declaration that a manufacturer must include with certain devices, in order to warn users what the noise output of the device will be during usage. Specific guidelines have been set which allow for the determination of the statistical validity (or stated another way, uncertainty) of the measurements, based upon number of samples tested and the accuracy of the testing equipment.

ISO 4871 directly references ISO 3740 which lays out the standard protocol for the measurement of noise emission. Additionally, ISO 7574 is referenced which gives the proper procedures for the verification of the sampling procedure utilized for the measurement and analysis.

On-Site Acoustic Testing will provide your organization with the testing required for including valid Noise Declarations with your equipment. Whether it be equipment destined for export, in-situ measurement at the end user’s location, or measurements to be conducted at our location, we will be pleased to provide you with a prompt quotation for the services you require.

Contact us at 1-800-665-0080 to speak with a consultant today, or email us at: sales@onsiteacoustictesting.com

Acoustic Testing for Schools

On-Site Acoustic Testing offers a full range of testing and design services for schools of all kinds:

  • Noise and vibration testing for classrooms, media labs, gymnasiums, and dining halls
  • Acoustic testing for auditoriums and other performance spaces
  • Consultation and design of paging systems and video monitoring
  • Design services for media labs and other audio-video systems
  • Development of distance learning infrastructure
  • Noise abatement services for all areas of the physical plant

We offer services to elementary and high schools, colleges, universities and vocational/trade schools.

Email us at: sales@onsiteacoustictesting.com

Talk to us toll free: 1-800-665-0080

OSHA Hearing Conservation Programs

If you are the individual in your company that is responsible for ensuring compliance with OSHA’s regulations, you already understand the importance of having your employees hearing regularly checked, and dutifully documented. You’re also aware that there are many options when it comes to having annual (or biannual) hearing tests for your employees.

On-Site Acoustic Testing can provide hearing tests for your employees, and help you set up a hearing conservation program, according to OSHA guidelines, if you’re not yet fully up to speed. On the other hand, if you already have a hearing conservation program in place, and have been contracting a third party provider to perform hearing tests, we can provide the training and equipment necessary for you to bring testing in house…resulting in significant savings over the long term.

Email us at: sales@onsiteacoustictesting.com

Talk to us toll free: 1-800-665-0080

Contact us today to talk about your requirements!

Just how “on-site” are we?

We regularly work with clients to provide acoustic testing, sound level testing, noise monitoring, employee dosimeter test protocol,  STC, IIC, vibration, air quality, and light intensity tests according to ASTM, ISO, and other standards, in the following places:

  • Alabama: AL
  • Alaska: AK
  • Arizona: AZ
  • Arkansas: AR
  • California: CA
  • Colorado: CO
  • Connecticut: CT
  • Delaware: DE
  • Florida: FL
  • Georgia: GA
  • Hawaii: HI
  • Idaho: ID
  • Illinois: IL
  • Indiana: IN
  • Iowa: IA
  • Kansas: KS
  • Kentucky: KY
  • Louisiana: LA
  • Maine: ME
  • Maryland: MD
  • Massachusetts: MA
  • Michigan: MI
  • Minnesota: MN
  • Mississippi: MS
  • Missouri: MO
  • Montana: MT
  • Nebraska: NE
  • Nevada: NV
  • New Hampshire: NH
  • New Jersey: NJ
  • New Mexico: NM
  • New York: NY
  • North Carolina: NC
  • North Dakota: ND
  • Ohio: OH
  • Oklahoma: OK
  • Oregon: OR
  • Pennsylvania: PA
  • Puerto Rico: PR
  • Rhode Island: RI
  • South Carolina: SC
  • South Dakota: SD
  • Tennessee: TN
  • Texas: TX
  • Utah: UT
  • Vermont: VT
  • Virginia: VA
  • Washington: WA
  • West Virginia: WV
  • Wisconsin: WI
  • Wyoming: WY
  • Netherlands
  • Germany
  • United Kingdom
  • China
  • Hong Kong
  • Japan
  • Singapore
  • Taiwan
  • Poland
  • Dubai
  • Abu Dhabi
  • Kuwait
  • Oman
  • Jordan
  • UAE

Please ask about emergency “next-day” service, for the most pressing noise-related situations.

Email us at: sales@onsiteacoustictesting.com

Talk to us toll free: 1-800-665-0080

UAE & Dubai Directory. We are listed under Science and Environment category

Soundproofing FAQ

Every time we hear the word “soundproofing” we have to take a moment to step back and think about what people actually mean when they say it.
.
As with most things in life, soundproofing is one of those nebulous terms that can mean different things to different people. Perhaps most appropriately, soundproofing has a different level of meaning (and urgency) to the party that is creating the noise than to the party being disturbed by it!

Additionally, soundproofing a building (be it commercial, industrial, or residential) is subject to the law of diminishing returns. There is a theoretical point that can be arrived at where further increases in materials or labor expended in applying those materials to a building, will cease to provide any subjective benefit.

On-Site Acoustic testing specializes in finding the correct balance where performance and real world budgets coincide. Using specialized building acoustics software (running on dedicated specialist hardware) we first pinpoint the exact frequencies where sound and noise transmission are occurring. Next, we isolate deficiencies within the building that are allowing for the sound and noise transmission. Only then are we able to develop effective strategies for eliminating the noise transmission problems.

More information is available on this website concerning actual testing methods and testing standards.

Contact us today at 1-800-665-0080 to find out more about testing and treatment designed specifically for your application.

What kinds of things can we measure for you?

We measure all kinds of noise, sound, and vibration levels for clients in all manner of industries, situations, and locations throughout the United States. We regularly consult with clients to solve their problems with:

  • Adjacent apartment noise
  • Air conditioning and heating noise
  • Air handler (and general HVAC) noise
  • Aircraft noise
  • Animal and pet noise
  • Automobile noise
  • Automotive repair shop noise
  • Bearing and other rotating assembly noise
  • Bus, truck, trolley noise
  • Church, Synagogue, Mosque, Temple and other house of worship noise
  • Club and discotheque noise
  • Concert Hall acoustics
  • Construction noise
  • Condominium and Co-op apartment noise
  • Dance club noise
  • Elevator and elevator equipment noise
  • Exercise and fitness club noise
  • Factory noise and OSHA compliance
  • Footsteps and other noises transmitted through floors, ceilings, and walls
  • Garbage and other utilty truck noises
  • Generator noise
  • Gymnasium noise
  • Hotel and motel noise
  • Laundry room noise
  • Machinery noise
  • Machine assembly noise
  • Medical office and diagnostic center noise
  • Noise declarations for equipment to ISO 4871 standards
  • Noise transmission through walls
  • Noise transmission through floors
  • Noise transmission of specific materials
  • Nightclubs, social clubs, and community center noise
  • Office noise and noise abatement
  • OSHA noise testing
  • Parking garage noise
  • Plumbing and other building infrastructure noise
  • Power Plants
  • Pump and other fluid related noise
  • Recording studio acoustics
  • Recording studio noise transmission
  • Recording studio noise containment walls
  • Restaurant and cafe noise
  • Traffic noise studies
  • Transformer noise
  • Vehicle noise
  • Ventilation equipment noise
  • Vibration from cars
  • Vibration from building equipment
  • Vibration from manufacturing equipment
  • Vibration from motorcycles

No matter where in the United States you are located, one of our consultants will be available to measure sound and/or noise levels at your site and provide you with a detailed analysis of the acoustical environment. On-Site Acoustic Testing specializes in working with commercial, industrial, retail, house-of-worship, and residential clients in solving acoustical and sound/noise level or transmission related problems. We’re committed to providing our clients with effective (and cost-effective) solutions, that result in a minimum of downtime and disruption at their sites. We are often able to offer convenient next-day scheduling, call us toll free at 1-800-665-0080 to speak with a consultant about your
requirements.

Email us at: sales@onsiteacoustictesting.com

Talk to us toll free: 1-800-665-0080

Are you our kind of client?

Do you have an acoustics or noise control related issue in your office, factory, retail store, church, mosque, synagogue, performance space, studio, listening room, inn, hotel, motel, or home?

Well then, simply put, you’re our kind of client!

All kidding aside, we work with architects, business owners, site managers, city/state officials as well as homeowners assisting them in creating acoustically ideal spaces for their employees, guests, and families. We look forward to talking with you about your specific product. Feel free to call us  at  1-888-445-2666 (toll free) for a complimentary phone consultation concerning your specific project.

We work with clients all around the United States (and sometimes the world) to improve their working and/or living environments, providing them with great looking and cost effective acoustic treatments.Whether your project is in the planning stages…or already completed, we can help you get the most out of your space.

Email us at: sales@onsiteacoustictesting.com

Talk to us toll free: 1-800-665-0080

Nationwide Sound and Noise Level Testing Services

No matter where in the United States you are located, one of our consultants will be available to measure sound and/or noise levels at your site and provide you with a detailed analysis of the acoustical environment. On-Site Acoustic Testing specializes in working with commercial, industrial, retail, house-of-worship, and residential clients in solving acoustical and sound/noise level or transmission related problems. We’re committed to providing our clients with effective (and cost-effective) services and solutions, that result in a minimum of downtime and disruption at their sites. We are often able to offer convenient next-day scheduling, call us toll free at 1-800-665-0080 with a consultant about your requirements.

On-site noise surveys, sound level testing, soundproofing, noise abatement, expert witness testimony, acoustic design service, on-site consultations available in: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

Services are available to plant managers, architects, urban planners, municipal and state agencies, attorneys, insurance companies, structural engineers, equipment manufacturers, and end-users of all kinds.

Email us at: project@osatusa.com

Talk to us toll free: 1-800-665-0080