portable sampling Articles
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Screening technique to estimate high benzo[a]pyrene concentrations near roads
The emission factors of benzo[a]pyrene for gasoline cars and for diesel cars were measured by directly collecting the exhaust gas using a portable sampling equipment and became 660 ng km–1 and 1700 ng km–1, respectively. The regression equations to easily evaluate the concentrations at the roadsides and at the crossroads were introduced as the functions of building height, road width, ...
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Multigas analyzer supports liquid fuel research - Case study
Two advanced FTIR analyzers are being employed to monitor multiple gas concentrations simultaneously in laboratory scale reactors at Sasol’s Research and Technology Centre in South Africa. The monitors, which were supplied by Gasmet Technologies (Finland), are being used to study changes in gas composition as gas passes through the reactor of the Fischer–Tropsch process – a key ...
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FIELD PORTABLE X-RAY FLUORESCENCE SPECTROMETRY FOR THE DETERMINATION OF ELEMENTAL CONCENTRATIONS IN SOIL AND SEDIMENT
The FPXRF technologies described in this method use sealed radioisotope sources to irradiate samples with x-rays. X-ray tubes are used to irradiate samples in the laboratory and are beginning to be incorporated into field portable instruments. When a sample is irradiated with xrays, the source x-rays may undergo either scattering or absorption by sample atoms. This later process is known as ...
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Water monitoring for remediation - Case Study
Customer: Rainbow Group and T95C Application: Portable water sampling Background: Established in 1985, Rainbow Group are environmental demolition and civil engineering contractors based in Padstow, NSW. Their services include construction, excavation, demolition, remediation and water treatment. Rainbow Group has a renowned reputation with the major oil companies and has decommissioned many ...
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Enrichment of 210Po and 210Pb in the Padubidri environs of Karnataka
The activity concentrations of natural radionuclides, viz 210Po and 210Pb, in soil samples of Padubidri in the coastal Karnataka, the site for the proposed coal-based thermal power station, were measured using a ZnS (Ag) alpha counting system to establish baseline data on radioactivity levels in the environment of the region. Soil samples were collected at different sampling stations and analysed ...
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I need an Industrial Hygiene Survey, What do I do?
Industrial Hygiene Surveys for Industry We have over 40 years of experience in performing Industrial Hygiene Surveys for industry. Also known as Occupational Health Surveys, the objective of such surveys is to identify and evaluate any potential health risks to workers in industrial locations, construction sites, or government institutions. Identification and Potential Risk Factors The first ...
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Maximizing the Longevity of Your Portable FID - A Guide for Technicians
Understanding the Impact of Filters on Portable FIDs Filters are a key component in the efficient operation of portable FIDs (Flame Ionization Detectors). Their lifespan depends on usage hours and the environment, with water exposure being a critical factor. Technician diligence in maintaining these filters is crucial for the longevity of portable FIDs. Our portable FID filters feature a ...
By LDARtools
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How does turbidity meter work?
What is turbidity meter? Turbidity meter, also known as turbidimeter, is mainly used to analyze water or solution turbidity level of water quality testing equipment. A Turbidity meter is a tool with optical properties due to the dispersion of light, which can be expressed as the ratio of reflected light to incident light. All other things being equal, the intensity of light reflected from the ...
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Air Sampling During NPP Accident
There has been considerable interest recently generated regarding emergency air sampling protocols as a result of the Fukushima accident in Japan. A major concern involving air sampling requirements is the accurate determination of gaseous-radioactive iodine species emitted from the NPP to the environment as a result of an accident. During normal NPP operation gaseous radioactive iodine ...
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Worker Exposure to Beryllium Health Hazards – New Regulations are HERE!
Beryllium Regulations To Lower Worker Exposure Recently OSHA has put new Beryllium Regulations in effect to lower worker exposure levels. Based on information on the health hazards of worker Beryllium exposure, OSHA has lowered the allowable exposure level by a factor of 10—from 2 ug/m3 to 0.2 ug/m3—and create a separate standard for Beryllium (29 CFR 1910.1024). There are a variety ...
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Answering your data integrity questions
With the increasing need to secure sensitive information, data integrity is here to stay. What questions do you have about 21 CFR Part 11? Read on to find the answers to commonly asked questions on this ...
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Minneapolis Offers Free Soil Testing to Raise Public Awareness of Lead Hazards
In 1998, the City of Minneapolis designed and implemented an innovative public outreach program to provide free access to soil testing for lead content to all Minneapolis residents. Soil testing kits were made available through local hardware stores, gardening centers and community groups. Citizens could either bring in samples to local merchants where city employees performed on-the-spot ...
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The census application case of USV lake - Case study
Time: June 2015 Equipment: sample collection monitoring USV , portable monitoring instruments Take the water quality survey of 53 representative lake in Wuhan. Collecting and recording sample automatic from these 53 lakes by USV, monitoring and recording water quality, PH, temperature, dissolved oxygen, conductivity, turbidity online, The results of the survey: Collect 673 water samples from ...
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Effectiveness, Suitability, and Performance Testing of the SKC® Deployable Particulate Sampler (DPS) As Compared to the Currently Deployed AirmetricsT
Epidemiological studies have linked particulate matter (PM) exposure to morbidity and mortality from cardiovascular and respiratory disease. In order to monitor and assess the potential PM health risk to deployed military personnel, the U.S. Army must field a portable sampler that can accurately sample particles with an aerodynamic diameter less than or equal to a nominal 2.5 mm (PM2.5). In the ...
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Differences between the 901 and 905 Headspace Oxygen Analyzers
Often we are asked what the difference in functionality is between the Model 901 Headspace Oxygen Analyzer and the Model 905 Benchtop oxygen analyzer. The internal components are the same - we use the same pump, oxygen sensor, and circuitry in both analyzers. The main difference is the enclosure. For applications where portability is not required, such as stationary sampling in a lab ...
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Using an air sampler for microbial air contamination monitoring: step by step
Microbial air contamination monitoring is a key process in facilities with special air cleanliness needs. Air sampling is a regulated process that, with following simple steps, we can obtain an indicator of the quality of the air. Do you want to know how to perform an air sampling? IUL’s air samplers are very compact and designed for easy transportation. In fact, IUL Spin Air samplers give ...
By IUL S.A.
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Laboratory mixer: differences between paddle blender and blender
Making an analysis and quality control requires a flexible and user-friendly equipment in order to prepare samples efficiently. In this way, different methods have come up, such as laboratory mixers. These are suitable for intense mixing, dispersing, homogenizing, emulsifying or mincing operations for cuttable materials. Simple handling, high user safety and efficiency are just some of the many ...
By IUL S.A.
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The environmental impact of nitrite in water - Could it be more significant than previously thought?
In aerobic environments, ammonia from agricultural pollution, sewage, decaying protein and other nitrogen pollution sources becomes successively oxidised (nitrified) to nitrite (NO2–) and then to nitrate (NO3–). Nitrate, is of course, a recognised environmental issue due to its role in eutrophication and groundwater contamination. But what about the environmental impact of ...
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Testing/Sampling and Analysis for Beryllium
OSHA has issued the a new Permissible Exposure Level (PEL) for Beryllium. The new PEL will reduce the 8-hour time weighted average exposure from 2 micrograms per cubic meter of air (2 ug/m3) to 0.2 ug/m3—a ten-fold reduction! and an action level of 0.1 ug/m3. A 15 minute STEL is proposed at 2 ug/m3. Further, OSHA intends to develop a complete standard for Beryllium identified as 29 CFR ...
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Testing/Sampling and Analysis for Beryllium
OSHA has issued the a new Permissible Exposure Level (PEL) for Beryllium. The new PEL will reduce the 8-hour time weighted average exposure from 2 micrograms per cubic meter of air (2 ug/m3) to 0.2 ug/m3—a ten-fold reduction! and an action level of 0.1 ug/m3. A 15 minute STEL is proposed at 2 ug/m3. Further, OSHA intends to develop a complete standard for Beryllium identified as 29 CFR ...
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