air testing Articles

  • Performance evaluation of exhaust air recirculation system of mixed mode solar dryer for drying of onion flakes

    This paper deals with the performance of mixed mode type solar dryer for drying onion flakes. During the experiments, no load and full load test were conducted to find out the effectiveness to the system with or without recirculation of exhaust air. The drying and thermal efficiencies and heat utilisation factors were recorded as 21%, 74% and 31% respectively, more compared to recirculation of ...


    By Inderscience Publishers

  • Single family home case study

    After treating with EBB for visible mold on a leaky roof, an environmental company was brought in to test the air quality... The air inside the building is supposed to have the same concentrations of spores etc. as the outdoor air. The testing came back to show spore concentrations of up to... 10x lower than that of the outdoor air. I was excited about the results... My client was ...


    By Hilltop Distribution, Inc.

  • Clearing the air on “free Air CFM” - Specs for portable duct cleaning vacuums

    Many times when researching equipment for duct cleaning vacuums you will find manufacturers posting the CFM suction ratings on their vacuums as “Free Air” or “bench Test”. The Free air test is the rating on the impeller wheel of the vacuum, simply put it is the maximum amount of airflow the impeller can produce with out any restriction. It seems as though many ...


    By Hypervac Technologies

  • Isolating Energy in the Wind Tunnel

    Wind tunnels, used for aerodynamic and acoustic testing in the automotive and aerospace industries, use one or more electrically driven fans to push or pull air through a test section. Air will either recirculate through a closed loop or be drawn in from the surroundings from one end of the tunnel and exhausted out the opposite end. Around the wind tunnel, there are several full body access ...


    By Kirk Key Interlock Company

  • Air Leak Test for Low Pressure Pipelines

    A guide on how-to-implement the Air Leak Test at gravity pipelines by following the right rules and regulations as per EN 1610. Air Leak Test is one of the test methods for testing any leakage at the gravity pipelines. The other method is testing with water. For the details of the water test, you may refer to our previous articles depending on the methods “ ...


    By PlugCo

  • 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 ...


    By a1-cbiss

  • An efficiency study of airlines and air cargo/passenger divisions: a DEA approach

    In this paper we investigate the question of whether a high degree of cargo business improves the operational efficiency of a mixed passenger/cargo airline. We use Data Envelopment Analysis (DEA) to compute the efficiency scores for major airlines in the world and then carry out non-parametric statistical tests. Using data for 29 airlines during the period 1998-2002, we find that airlines with a ...


    By Inderscience Publishers

  • Applications guide to mass flow measurement in the power industry

    Precise, timely measurement of air, fuel, and gases is one way today's utilities can take action to protect themselves against rising costs and comply with increasingly stringent environmental requirements. Sierra thermal mass flow meters and control systems are designed expressly to fill these needs. They can make utilities more cost-effective in a variety of applications: Real-Time Fuel Line ...


    By Sierra Instruments, Inc.

  • Case Study for Resin Manufacturing Industry - Case Study

    This very compact system was designed, built, tested and fresh air commissioned complete in the UK inside a dedicated ISO container before being shipped to central Russia where it was simply connected to the customer’s process. It was designed to withstand operation in very extreme ambient conditions of minus 50°C in the winter and +30°C in the ...


    By AirProtekt Limited

  • Automotive Plunger Assembly Machine

    The custom assembly machine completes the plunger assembly and detection, which includes plunger assembly, steel ball assembly, check valve spring ...

  • Canisters v. Sorbent Tubes: Vapor Intrusion Test Method Comparison

    Abstract A carefully designed field vapor intrusion investigation consisted of three one-foot deep borings spaced one-foot apart at three locations within the perimeter of a former dry cleaner. One six-liter Summa canister (EPA Method TO-15) and two pump/packed tube assemblies (EPA Method TO-17) were used in each three-boring arrangement for a total of nine sampling locations. A ...

  • Selwood Housing – Case Study

    Project Highlights After a successful tendering process, Envirochem was awarded the contract to provide surveying and analytical services to Selwood Housing. Envirochem are responsible for organising a large number of management surveys of various Housing stock in the relevant timescales. Additional analytical services include bulk analysis ...

  • 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 ...


    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 ...


    By ASTM International

  • Bournemouth Airport (2) – Case Study

    Project Highlights Asbestos Awareness Lecturing Type 1,2 and 3 asbestos surveys Creation of asbestos removal specification Generating independent quotations Independently generating best ‘fit’ for client Asbestos Removal Project management Asbestos air ...

  • Ridgway School - Case Study

    Project: Two Storey Senior School Client: Ridgeway School Completed: February 2013 Floor area: 512m² Duration: 5 weeks Value: £465,000 Turnkey service elements completed: ...


    By Modulek

  • Boston Indoor Air Quality and Mold Experts

    We provide indoor air quality (IAQ) testing in the Boston area for problems such as mold, bacteria, chemicals, allergens, dust, asbestos, lead and Building Related Illness or Sick Building Syndrome. The Boston MA areas IAQ Specialists We are Massachusetts’ indoor air quality experts with offices in the Boston area with the ability to ...

  • Texas (TX) Indoor Air Quality and Mold Expert

    We provide indoor air quality (IAQ) pollution testing/sampling throughout Texas (TX) for problems such as mold, bacteria, chemicals, allergens, dust, asbestos, lead and Building Related Illness or Sick Building Syndrome. We have 40 years of experience in indoor air quality experts with the ability to investigate, test for and correct IAQ pollution problems in a wide variety of settings including ...

  • Georgia (GA) Indoor Air Quality and Mold Expert

    We provide indoor air quality (IAQ) pollution testing/sampling throughout Georgia (GA) for problems such as mold, bacteria, chemicals, allergens, dust, asbestos, lead and Building Related Illness or Sick Building Syndrome. We have 40 years of experience in indoor air quality experts with the ability to investigate, test for and correct IAQ pollution problems in a wide variety of settings ...

  • ILLINOIS (IL) Indoor Air Quality and Mold Experts

    We provide indoor air quality (IAQ) testing in the Illinois (IL) area for problems such as mold, bacteria, chemicals, allergens, dust, asbestos, lead and Building Related Illness or Sick Building Syndrome. Are You Experiencing Poor Indoor Air Quality in Your Building? We are Illinois’ indoor air quality experts with offices in the Chicago area with the ...

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