Air Testing Articles | Environmental XPRT

Food & Beverage Industry: Soft Drink - Case Study

The peCOD (photoelectric Chemical Oxygen Demand) method for COD analysis is well suited to the soft drink industry as it provides plant operators with quick and reliable COD results important for process monitoring and control. Continuous COD monitoring of wastewater can protect production plants by ensuring COD discharge levels meet the acceptable limits, and by detecting product leakage. It can ...

Apr. 26, 2018

By MANTECH Inc.

Dynamic Air Permeability Testing - An Important New Tool

ABSTRACT A new method and instrument is discussed for dynamic air permeability testing of airbag fabrics. This new method provides for much more representative test results as the commonly used static, low pressure air permeability test. The use and significance of the dynamic air permeability and air permeability curve exponent are explained for both, the airbag system designer and the airbag ...

Jan. 1, 2007

By Textest AG

Importance of Air & Water Testing in Indoor Pools

Have you ever wondered why your eyes hurt or why you have a cough after swimming at an indoor pool? We all assume that it’s from too much chlorine in the pool but that is false! If the pool staff doesn’t regularly test and monitor both the air and water indoors, the environment becomes very toxic and unsafe to everyone in the building. Water is an essential ingredient for all life as ...

Mar. 7, 2012

By Critical Environment Technologies Canada Inc. (CETCI)

Ultrasonic Testing For Non Destructive Testing

Ultrasonic Testing or UT as its known has programs in a wide range of sectors, from aerospace, automobile, to substance, oil, large storage space, and power creation and overseas. UT is aspect of a selection of techniques known as NDT (Non Destructive Testing) methods. Their objective in industry is to allow the examination of parts and equipment ...

Mar. 15, 2014

By Non Destructive Testing Lab

EPA Regulations Raise the Bar for Industrial Air Quality Testing

Far-reaching environmental legislation continues to change the way Americans live, work, and run their businesses. For the past ...

Dec. 1, 2006

By Air Liquide America Specialty Gases LLC

Field testing of small, fast, rugged Fourier Transform Spectrometer in the air and on the ground

Designs & Protoypes, LTD. has fielded a small, very fast, and rugged rotary Fourier Transform Spectrometer (FTS) which can be used for environmental remote sensing and chemical detection. The continuous rotary scan of the Turbo FT allows operation without the laser reference of conventional FT spectrometers, and it has been demonstrated to deliver 360 spectral scans per second and 1 cm-1 ...

Jun. 1, 2001

By D&P Instruments, Inc

AIRE-O2® Aerators tests number one in three critical areas

Problem In 1986, this southern USA fine paper mill developed problems on start-up from a Christmas shut-down, requiring quick action to add efficient aeration to its 38 MGD (143,830 m 3) flow. Poor winter treatment, channeling throught the system, and high solids had also been problems. Since the company was committed to preserving the environment, it searched for the best aerators to meet its ...

Dec. 22, 2008

By Aeration Industries International (AII)

Equivalence of Air and Water Permeability Tests in Evaluating Engineering Fabrics

Permeability characteristics of civil engineering filter fabrics are currently evaluated by three types of tests: air permeability and falling-head and constant-head water permeability. Test procedures for the falling-head and constant-head water permeability tests are discussed, and results from these tests are correlated to air permeability results for filter fabrics. Several commercially ...

Sep. 1, 1978

By ASTM International

Purpose of Air and Surface Mold Sampling or Testing during Assessment

As part of determining whether an indoor environment is contaminated with excessive amounts of mold and requires remediation, Indoor Environmental Technologies (IET) routinely performs air and surface mold sampling or testing. While there are many types of sampling, IET uses two of them the most: Air sampling using a “spore trap” sampler. Considerable information ...

Mar. 20, 2015

By Indoor Environmental Technologies (IET)

Ground Zero Air Quality Has A Long Way To Go! A Summary of Air Quality Testing in Surrounding Buildings

There are still a wide range of concerns about air quality in the vicinity of Ground Zero. Many commercial and residential spaces have yet to be re-occupied. In only a few cases has any sort of inspection or testing been done to determine if they are safe to occupy. The greatest concerns are asbestos and the very irritating concrete dust that spread throughout lower Manhattan during the collapse ...

Jan. 1, 2002

By Atlantic Environmental, Inc.

US EPA airmOzone TESTS

The US EPA leads Photochemical Assessment Monitoring Stations programs (PAMS) for more than 15 years and many equipments used at PAMS sites are old and need to be replaced. That is why US EPA has conducted a material review of fully automatic GC units able to by analyze the 56 VOC ozone precursors of the PAMS list. They planned to perform an evaluation in two steps : - Laboratory evaluation of ...

May 1, 2014

By Chromatotec Group

Emission Testing and Monitoring

Presented in Track B4: EMISSION TESTING & MONITORING at EUEC 2011, January 31 Phoenix, Arizona B4.1 | Update on PM2.5 and Condensable Particulate Matter Emissions Measurement Methods Larry Hottenstein | Partner, Environmental Resources Management Following the promulgation of the PM2.5 ...

May 9, 2011

By Energy, Utility & Environment Conference (EUEC)

Vibration testing of fuel probes

Aerial Refuelling The American Bell-Boeing V-22 Osprey is a multimission, military, tilt rotor aircraft with both a vertical and short takeoff and landing capability. It combines the functionality of a conventional helicopter with the high-speed cruise performance of a long-range turboprop aircraft. But even though it is long-range, some missions require in-flight refuelling. The V-22 Osprey can ...

Jun. 15, 2010

By Brüel & Kjær Sound & Vibration Measurement A/S

LIMS Essential for H2O Testing

Clean water is a global necessity - essential to our health and well being. Just imagine a day without clean water to drink, to prepare our food, to wash the daily grind from our clothes and bodies. There’s a lot of science behind clean water and a laboratory ...

Jul. 5, 2012

By Thermo Fisher Scientific, LIMS & Laboratory Software

Finding an OEM solution for air purifier & air cleaner

Finding an OEM solution for air purifier & air cleaner, there are many companies out there who are committed to finding the right solution for you and your business. Most of them will develop a solution meeting your needs. Below are examples of solutions you may need to consider if you are seeking for air purifier OEM solutions. In developing new OEM products, your vendor will work with you ...

Feb. 6, 2007

Air Volume Change Measurement in Unsaturated Soil Testing Using a Digital Pressure-Volume Controller

One of the challenges associated with the testing of unsaturated soils is the measurement of air volume change induced by stress changes. This paper reports the results of an evaluation of a digital pressure-volume controller as an air volume change indicator. Effects of temperature, confined volume, and precompression of the measurement medium on the p-V characteristics and the device response ...

Mar. 1, 1996

By ASTM International

Three Reasons Why It’s Time to Invest in Your Own Air Purity Test Kit

The costs of hiring someone to test your breathing air lines on site can quickly add up, have you ever considered doing your own tests? The use of breathing masks and compressed breathing air is a vital component of maintaining safety standards on site. The air produced protects workers in spray booths, car body shops and other applications where isocyanate paint mixtures are ...

Jun. 17, 2014

By a1-cbiss

Proposed Standard Test Method for Measurement of Pneumatic Permeability of Partially Saturated Porous Materials by Flowing Air

This proposed standard describes a laboratory test method for the measurement of the coefficient of permeability for airflow (pneumatic permeability) through porous media (e.g., soils) partially saturated with water. Control and measurement of the airflow is effected at the inlet of the specimen. The permeameter cell is fitted with dual transfer lines that isolate the specimen pressure drop from ...

Jun. 1, 1996

By ASTM International

Use of Air Bag System for Instrumentation of Lateral Load Tests on Previously Installed Pipe Piles

A simple and inexpensive air bag system for allowing measurement of the deflected shape of laterally loaded piles has been developed. The air bag system may be used for hollow piles that have already been installed. The system includes an inclinometer casing that is held against the inner wall of the pile by an inflated air bag. Tests on small- and large-diameter steel pipe piles at two different ...

Dec. 1, 1992

By ASTM International

Consolidation Apparatus for Testing Unsaturated Soils

An apparatus for performing consolidation tests under K0 conditions was designed and constructed for testing unsaturated soils. Three types of consolidation tests are of interest in unsaturated soils. These are: (1) constant water content loading tests, (2) consolidation under a net total stress, and (3) consolidation under a matric suction. The apparatus had been used for simultaneous and ...

Dec. 1, 1996

By ASTM International

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