air testing laboratory Articles

  • Laboratory test system to measure microbial respiration rate

    This study reports a sensible, accurate and economic method for continuous measuring microbial respiration. The measuring principle is an open system, with a continuous air-flow through. Evolved CO2 is absorbed and precipitated as carbonate by a Ba(OH)2 solution, causing a stoichiometrical decrease in ionic strength of the solution and in electrical conductivity. ...


    By Inderscience Publishers

  • A Thermally Controlled Test Chamber for Centrifuge and Laboratory Experiments

    This note describes a novel approach for the provision of a thermally controlled testing chamber. The main principal of the system is to use a layer of cooled air as an active insulation medium to convect away heat transferred through conventional passive insulation. Results from laboratory floor and centrifuge tests are reported. Observed and predicted performance capabilities of the chamber are ...


    By ASTM International

  • PMP Inter-laboratory Correlation Exercise: Report on PART3: JRC Tests in July `06

    This document reports the results of the third part of the testing performed during the PMP inter-laboratory exercise - 13 July to 18 August 2006 - conducted at the Vehicles Emissions Laboratory (VELA2) in the Transport and Air Quality Unit of the European Commission’s Joint Research Centre (JRC-Ispra). This report presents the results of the work undertaken on a 2.0 HDi diesel car equipped with ...


  • 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 ...

  • Laboratory And Field Inter-Comparison of O3 Diffusive Samplers

    A field and laboratory inter-comparison of diffusive samplers for measuring ozone (O3) in ambient air was carried out. The objective of this study was the evaluation, according to the EN protocol of validation of diffusive samplers, of the extent of differences between O3 measurements performed by diffusive samplers and the reference method under extreme conditions of influencing factors. Ten ...


  • Laboratory analysis demonstrates severity of Ogoniland pollution

    A two year study of the environmental impacts of oil contamination in Ogoniland was one of the most complex on the ground assessments ever undertaken by ALcontrol Laboratories. Conducted at the request of UNEP and the Federal Government of Nigeria, the work involved fieldwork and laboratory analysis.  ALcontrol Laboratories analysed over 4,000 air, soil and water samples collected from ...


    By ALcontrol Laboratories

  • EMSL’s Phoenix Laboratory awarded EMLAP accreditation

    The Arizona environmental testing facility has continued its busy expansion of services since opening their doors in 2007. EMSL Analytical, a leading provider of advanced environmental laboratory services, has recently announced that their Phoenix laboratory has been accredited by AIHA for microbiology analysis. The exciting news has quickly made its way to Arizona environmental professionals who ...


  • 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 ...


    By Chromatotec Group

  • 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 ...

  • 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 ...

  • 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 ...


    By ASTM International

  • METH: THE NEW MOLD - New Markets in Clandestine Laboratory Clean-up

    Untitled Document Intro Clandestine labs have become prevalent across America. They are used for the ...


    By EMSL Analytical, Inc.

  • A healthier air supply

    A recent study carried out at an IVF Lab in the US has shown that Steril-Aire’s UVC Emitters™ used in HVAC systems can play a critical role in improving clinical outcomes Aseven and a half-year study conducted in the in vitro fertilisation cleanroom laboratory of the Lehigh Valley Hospital and Health Network in the US found that the use of ultraviolet C or “UVC” lights ...


  • The Path to Safety for Pharmaceutical and Laboratories: Why O2 Deficiency Monitors May be Required?

    To safeguard against gas leaks in pharmaceutical industries and laboratories, businesses are turning to oxygen deficiency monitors. Learn when, where, and why an oxygen monitor or O2 monitor may be required.  Oxygen Monitors in Medical and Pharmaceutical Settings In the hospital setting, nitrogen gas is ...

  • Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory

    ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

  • Explaining vehicle emissions – why do laboratory and road measurements differ?

    The road transport sector is a major contributor to Europe’s emissions of greenhouse gases and air pollution. For certain pollutants, vehicles can emit substantially higher emissions on the road than official emissions tested in laboratories. A report released today by the European Environment Agency (EEA) provides a non-technical guide that describes the reasons for these often significant ...


    By European Commission

  • Base Tests Common Cleanup Solution at Uncommon Site

    The Air Force has installed a granular activated carbon (GAC) adsorption system to remove contamination from groundwater at a remote Air Force Research Laboratory (AFRL) Propulsion Directorate ...


    By J.C. Palomar, Inc.

  • Building Services Management - Air Sampling -

    Untitled Document Maintenance professionals are often the first responders to mold complaints in their facilities. building occupants can be exposed to fungal (mold) ...


    By EMSL Analytical, Inc.

  • Air pollution – the invisible roadside killer

    The VW emissions scandal has helped to raise awareness of the deadly threat posed by air pollution in many of our towns and cities. In the following article, Jim Mills, Managing Director of Air Monitors, an instrumentation company, explains why diesel emissions will have to be lowered and how the latest monitoring technology will be an essential part of the solution. ...


    By Air Monitors Ltd.

  • Case study - Performance testing PAHs in soil

    These case studies highlight Sitelab’s accuracy from customers who have used the UVF-3100D for testing Target PAHs. This test correlates well to U.S. EPA Method 8270 or similar GC methods, which includes a list of 16 or more compounds. The analyzer is fitted with special optical filters sensitive to this same group of hydrocarbons. Examples of UVF-3100D testing Polycyclic Aromatic ...


    By Sitelab Corporation

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