The ESM Solutions for Particulate and Ambient Air MeasurementEnvironmental Monitoring ESM Andersen Instruments Collocated FH 62 I-R Monitors 120 100 80 60 C in µg/m3 40 20 0 -20 30. 12. 01.01. 03.01. 05.01. Date 07.01. 09.01. 11.01. ISO 9001 EQPM-0990-076 (Fed. ESM Andersen Instruments has developed a wide range of instruments to provide complete solutions for all specific requirements in particulate monitoring. The instruments of the type FH 62 I: VDI-guideline 2463 part 5 (ISO/DP 10473). 181-1990) EUROPE European TÜV Test Report no. THE FLAGSHIP The FH 62 I-R Particulate Monitor utilises the radiometric principle of betaattenuation by a dual beam compensation method. a wide measuring range. a dynamically expanding group of laboratory and monitoring equipment producers. 55. The experience of more than 2. When a person inhales these contaminated particles. 240 12 676 (1995).. Mobile – The FH 62 I-R's quick response and very low detection limit make it very Approvals and Suitability Tests USA Approval of the Environmental Protection Agency (EPA). Working place – A continuous monitor for a quick response. The company started with the development and industrial production in Erlangen/ Germany more than 50 years ago and is today one of the world leaders in particulate measurement.000 FH 62 monitors installed worldwide is included.Reg. Together with our US sister companies Andersen and MIE we are members of the Thermo organization. By 43/95 2 . ESM Andersen Instruments GmbH is the former FAG Radiation Measurement Division. published in the Federal Gazette of Ministers (GMBI) No. Due to the very low detection limits the FH 62 I-R is able to measure precisely very small particulate fractions. It is a high performance solution with unmatched special features. Vol. Radiation protection approval of the Federal Republic of Germany. 1 in Continuous Particulate Monitoring Suspended particles in ambient air serve as a transport medium for organic and inorganic compounds. comfortable in mobile applications.No. The special advantage is to measure the mass concentration continuously during sampling. License no. 24022605 according to the European Standard EN 12341 to comply with the Council Directive 1999/30/EC. Ambient parameters (pressure and temperature) are measured to control the air flow rate (no cutpoint shifts). bronchitis syndromes or lung and pulmonary health problems may occur. two selectable limit values and internal data storage for half hour average concentration values over a whole year. 33 (1995) page 703. Corresponding to the thoracic convention of ISO 7708. Applications Networks – The FH 62 I-R is designed to fulfill all needs of networking installations. Also around and in industrial sites they are measured for industrial hygiene. It is a firm device in which external vibrations do not effect the measurement. No warm-up time! Size selective – Various inlets with different cutpoints allow a size selective concentration measurement. ISO 10473 (Beta Ray Absorption) GERMANY Suitability Test: TÜV Approval-Report no. No. Air quality stations and networks observe the pollutant components for health protection of the population. Beta Attenuation Monitor FH 62 I-N with PM 10 inlet: EPA-Test-No. The sampled particles are available for a subsequent laboratory analysis. 000 µg/m3 or 0 to 10.. continuous mass and mass concentration during sampling. 1 h. 3 µg/m3 (1/2 hour average) typ. 24 h Air flow rate: 1 m3/h through the filter (no loss of particles due to flow splitter Internal flow rate measurement and control: stability < 1 % with RPM-regulated pump Time between calibration checks and maintenance: 12 months (if used as specified) = one year stand-alone running without any service Power supply: 100 V to 240 V. Simple and fast mass calibration with the ESM mass calibration kit. 3 h. special safety source Analog output signals: Two independent channels 0/4 . of all units in a network.98 Precision of 2 monitors: 1 µg/m3 (24 h) Measurement: On-line. 4 µg/m3 (measured values) typ. This provides a very stable measurement over a very long period. 0. Customer specific options. The measuring head (1-7) is built symmetrically in respect to the beta source (4). Time-saving air flow calibration with the ESM air flow calibration kit. The electric signal at the output A is proportional to the actual sampled mass. 20 mA or 0/2 .g. 10 V (selectable) Printer/computer connection: Two V 24/RS 232 C serial interfaces Display Key´s A + ADC DAC CPU 1 2 3 4 5 6 7 D P analog I/O digital I/O RS232 Com2 Com1 'ESM Andersen Instruments' 1 2 3 4 5 6 7 Measurement I-chamber Dust sampling Suction chamber Kr-85 gaseous source Compensation chamber 1 Compensation chamber 2 Compensation I-chamber 3 . Monitoring of extreme low concentration levels.5 µg/m3 (24 hour average) Correlation coefficient: R ≥ 0. 1.85 GBq (= 50 milli Curie). Therefore air mass changes in the active volumes due to temperature or pressure changes as well as supply voltages drifts are compensated intrinsically. 50 to 60 Hz (± 10%) Dimensions: Width 483 mm (19") Height 310 mm (7 HU) Depth 320 (380) mm Weight: approx. Ionization chambers are distinguished as detectors because they have the best long term stability. Easy set-up and operation.. operational life time and the less influence on efficiency by high voltage and temperature changes. Dust particles are deposited on the filter. The RPM-regulated rotary vane pump is provided for accurate air flow rate control. Compared flow rates are calibrated easily by the operation menu. No loss of volatile mass components. Ambient air is pulled through the sampling system.Dual Beam Compensation Important Features Top quality measurement. The filter spot typically remains 24 h in place (2) until full load has been reached. The increasing dust layer weakens the intensity of the beta beam in the section (4-2-1). From the temporal increase of the dust mass and the measured air flow rate. 45 kg Source: Krypton-85. Special safety beta source box. Automatic internal checks with status reports and detailed logbook entries for quality assured measurement data. The current air flow rate is exactly measured with an orifice plate. Technical Data Measuring range: 0 to 5. Operation Principle The Single Filter Spot Principle is used: A new cycle starts when a clean section of the filter tape moves into the measuring position. Automatic filter change typically every 24 h. Short term averaging: 4 seconds with 1 second scanning time Long term average concentration: 30 min. Dual beam compensation method eliminates physically temperature and pressure changes.. Accurate sampling efficiency without "flow splitter" or "dryer". Extremely low maintenance costs given by one year stand alone and maintenance-free operation. the concentration is calculated and displayed.000 µg/m3 Detection limits: typ. Results in the same sensitivity and accuracy e.. 2 µg/m3 ( 3 hour average) typ. 40 kg Source: Krypton-85.FH 62-1: Single Beam Compensation THE ECONOMICAL SOLUTION The FH 62-1 utilizes as well as the FH 62 I-R the radiometric principle of beta-attenuation by an accumulated dust layer. special safety source Analog output signals: Two independent channels 0/4 .4 m3/h (selectable) Internal flow rate measurement and control: Stability < 1 % Power supply: 100 V to 240 V: 50 to 60 Hz (± 10 %) Dimensions: Width: 483 mm (19") Height: 310 mm (7 HU) Depth: 320 (380) mm Weight: approx. In contrary to the FH 62 I-R it has a single beta beam. 1 µg/m3 (24 hour average) Precision of 2 monitors: 2 µg/m3 (24 h) Air flow rate: 0.. 5 µg/m3 (1/2 hour average) typ. Technical Data Measuring range: 0 to 5. 10 V (selectable) Printer/computer connection: Two V 24/RS 232 C serial interfaces Operation Principle The operation principle corresponds to the FH 62 I-R.. EEPROM I comp Filter tape 3 4 analog I/O digital I/O options 1 2 3 4 Measurement I-chamber Dust sampling Suction chamber Kr-85 gaseous source µg µg/m3 LC-Display & softkeys 'ESM Andersen Instruments' 4 Com2 2 CPU RS232 1 sensors Com1 .85 GBq (=50 milli Curie).000 µg/m3 and 0 to 10. I meas ADC DAC RAM ext. The dust particles are sampled on a filter (2) and beta particles in the measuring path (4-2-1) are attenuated due to the increasing dust layer. 1.1... 3 µg/m3 ( 3 hour average) typ. 7 µg/m3 (measured values) typ.000 µg/m3 Detection limits: typ. Good measurement stability is achieved compensating air mass changes in the active volume by temperature and pressure sensors.6 . 20 mA or 0/2 . It is also designed to measure the mass concentration continuously and is a low budget alternative. Air Sampling SUMMA Canisters SUMMA Electropolished Stainless Steel Canisters meet all requirements of US EPA Compendium Method TO14. This feature permits the motor to operate at low sampling flow rates for extended periods without motor failure from overheating. Microprocessor control with RS 232 standard. Samples up to 16 canisters. The microprocessor controller provides a user-friendly interface. The Model GPS-1 features the latest in technological advances for accurately measuring airborne particulates and vapors. into eight individual canisters.Sampling Systems AVOCS Ambient Volatile Organic Collection System Andersen AVOCS collects whole ambient air samples for subsequent laboratory analysis of volatile organic compounds (VOC's). The PUF Sampler is equipped with a bypass blower motor arranged with an independent cooling fan. Quality assurance checks. Up to 17 separate sampling periods. A 6 liter canister can be set for flow rates of 2 up to 500 scc/min to facilitate short or lengthy sampling times ande ease of operation. Capable of collecting multiple sequential samples into the same canister. Meets PAMS sampling requirements of eight (3) hour sampling periods totaling 24 hours. Optional 16 port auto valve system. 5 . The canister meets EPA protocols for collection of ambient volatile organic compunds (VOC) ensuring long term sample stability. even in the ppb range. Remote module activation and programming. Samples can be segregated by wind speed or direction (sector sampling). allowing maximum flexibility when selecting sampling options. PUF (PolyUrethane Foam) Sampling System The PUF Sampler is a complete air sampling system designed to simultaneously collect suspended airborne particulates as well as trap airborne vapors at flow rates up to 280 liters per minute. Optional serial printer. User selectable flow rates with mass flow control option. EPA-Designation No.5 µm inlet. and with either brush or brushless motors.3 m3/h) PM 10 Reference Particulate Sampler Small Filter Device (2. PM 10 Size Selective High Volume Air Sampling Systems are available with either mass flow or volumetric flow controllers. Parameter and data memory. Suitable for different filter types. Easy cleaning of the EPA WINS 2.5 µm (1 m /h) US EPA reference measurement (FRM). Storage of the last 10 measurements. Time-saving filter exchange by slider mechanism. Remote control possible.PM 10 µm (1 m3/h) FH 95 E . The High Volume Sampler is also available with a PM 2. Battery buffered memory and realtime clock. Selectable thresholds for minimum air flow. Multi interval sampling.6 m3/h) TSP Reference Particulate Sampler Small Filter Device. 3 FH 95 E Particulate Sampler . inlet according to EN 12341 Annex B1 6 .Particulate Sampling low noise Ve r y High Volume PM 10 and PM 2. Accurate pressure and temperature measurement.PM 2.5 imlet. operation and calibration. Manual sampling with gravimetric evaluation (balancing) is used as reference method to calibrate different particulate monitors. Highlights Easy setup. Part 8 FH 95 K (2. the black carbon content or the chemical laboratory analysis for inorganic and organic substances contained in the particles. RFPS-1098-123 Filter Exchange Mechanism for round filter ( 47. Multi language operation menue. Therefore no errors due to a variation of the air flow rate in the sampling system occur. Quality assurance with internal checkups and logbook feature. The FH 95 uses the same sophisticated air flow measurement and control like the ESM Particulate Monitors. Selectable analog data output.TSP Particulate Sampler (1 m3/h) FH 95 K (2. Automated leakage test.5 Samplers FH 95 Particulate Sampler The universal particulate sampler is the initial stage for the manual measurement of the particulate mass concentration.3 m3/h) with LVS-PM 10-European reference method. according to VDI 2463. 5 versiolnsblare avai a e FH 95 E Particulate Sampler . Automatic diagnostic with advanced microprocessor technology. 220 V/50 Hz.8 mm) For accurate sampling of airborne particulates. the PM 10 High Volume Air Sampler is an EN 12341 Reference Sampler for the measurement of PM 10 in ambient air. Recording of power failures. The sampled particulate mass is determined by balancing the filter before and after sampling. Each of the two airstreams enters a manifold which directs the air into a maximum of three separate and distinct flow paths. The sampled particulate mass sufficient to do chemical or radioactivity analyses. 2/2 valve for leakage test 2.5 micrometers aerodynamic diameter.5-400 utilizes the proven microprocessor-based. At 24 hour samples the stand alone operation time is 16 days or 14 days (working with 2 empty filters).5 Speciation Monitor Features and Operation The RAAS2. Individual flow rates are selectable for each manifold and external filter samplers as for example dichotomous samplers.5400 monitors and records ambient. The FH 95 SEQ Sampler has a pressure and temperature compensated probe to allow a precise measuring of the air flow rate at ambient and standard conditions. source emission analysis and determining the success of emission control programs. 7 . Leak checks and flow audits can be performed at the main sample inlet and upstream of each sample collection stream. The capacity with 16 filter cassettes stacked in a magazine allow an automated and accurate filter change. air quality mdel evaluation. The RAAS2.3 m3/h) with EU-PM10-small filter (LVS) device inlet. sulfates. Air flow regulation with (RPM) speed regulated pump Sampler output data: Total volume (m3) Standard volume (Nm3) Average air flow (l/min) Sigma (%) of the flow rate PM2.5-400 quantifies mass concentrations and simultaneously identifies significant fine particle constituents including trace elements. ammonium.3 m3/h 1. The cyclones remove particles larger than 2. Reference Sampler to the specification of norm EN12341 at 2. The air flow rate (1 m3/h) is controlled by a rpm carbon vane pump at a stability of about 1%. A standard RAAS2. manifold and enclosure temperatures. Operation All RAAS2. The RAAS2. Sequential Particulate Sampler FH 95 SEQ (2.5-400 components in contact with the sample air stream are either PTFE or glass lined. The sum of the flow rates for each manifold must total 24 liters per minute. The airflow is then split equally into two 24 liter per minute AIHL cyclones.5-400 through an omni directional.Sequential Particulate Sampler FH 95 SEQ The Sequential Particulate Sampler FH 95 SEQ is designed for the manual gravimetric mass concentration determination of suspended particulate in the ambient air or at working places (indoor). Ambient air is drawn into the RAAS2.5 calibration kit accomplishes calibration and audit requirements. wind direction and flow rates for each individual channel. humidity. barometric and pump vacuum pressures. The RAAS2. nitrates. wind speed insensitive inlet. menu driven control and data recording system common to the entire family of FRM RAAS series samplers. optional wind speed.5 Fine Particulate Chemical Speciciation Sampler is particularly useful for emission inventories. Low Volume Sampler (LVS) with 16 filter cassettes. Each sample collection flow path is individually controlled by a critical orifice downstream of the collection components. carbon and other tergeted species important to loal and regional issues. 48 liters per minute of sample air is pulled into the system and maintained at ambient temperature. PM 10 ESM The PM 10 sampling inlet for measuring the thoracic fraction of the suspended particulate (SPM) with an aerodynamic diameter < 10 µm. European PM 10 TÜV-Test Report according EN 12341. but with 1 m3/h. Temperature selection via operation menu or interface. DPM1010100PP Spare baffle plate (exchangeable). These heatings can be used in combination with the ESM sampling inlets and the FH 62 monitors. Heated Sampling Tubes 100 Percentage of total airborne particles in convention 80 60 Healthy adult respirable convention Inhalable convention 40 ’High risk’ respirable convention 20 Thoracic convention DPM102301 3 4 5 7 10 20 30 40 50 70 100 Aerodynamic diameter µm 0 0 2 The inhalable. The curves are summarized by their 50% cutpoint size. With special surface protection using an aluminium EMATAL surface.5/2. LVS-PM-10 reference sampling inlet (2. DPM1010100 PM 10 size selective inlet (1 m3/h) for FH 62 Dust Monitors. 8 .3 m3/h) according to the European guideline EN 12341. TSP . where half of the particles of that size pass through the inlet and the other half is deposited in the inlet. with special water separator and easy exchangeable impactor baffle plate. They can cause damages close to the deposition site if the are corrosive.3/01 into a PM 2. In ESM heated sampling tubes the air and particle temperature increases smoothly over the complete tube length up to 2. Inhaled particles can be deposited somewhere in the lung.3/01. Same construction as the EN reference inlet. thoracic and respirable conventions as percentages of total airborne particles. Inlets are charcterized by sampling effectiveness curves. Air is drawn through these inlets in order to remove particles which exceed a specific aerodynamic diameter before exposing the filter to the air stream. ISO 7708 describes the particle size fraction definitions to be used for health-related sampling.5 European PM-10 Reference Inlet ESM Andersen Instruments provides size selctive inlets which can be connected to all FH Sampling devices to fulfill the needs of health related sampling. therefore a stable cutpoint and a stable measurement of a specific health-related size fraction is achieved.PM 10 . This EN reference method has to be used for quality check of all PM 10 sample systems.5 inlet DPM 2. DPM252301DP PM 2. very small or capable of initiating some other type of damage. All inlets are designed for an air flow rate of 1 m3/h (operational flow). The ESM monitors provide an airflow control to operational conditions.ESM Inlets for Health Related Sampling The fraction of airborne particles which is inhaled into a human body depends on the properties of particles and the particle size. Size Selective Inlets They define the sampled particle size.PM 2. carcinogenic.5 nozzle plate for a change of a DPM-10/2. Therefore a loss of volatile components like ammonium salts (which are converted in the gaseous phase above 40 °C) is prevented.5 m without overheating. The automatic measurement can be disturbed by water condensation in the sampling tube at foggy weather or high absolute humidity in the summer. Motor. 9 . and easy to use. versatile. real-time aerosol monitor for active sampling applications. rugged design. the pDR-1200 cyclone preseparator provides precisely defined particle size cuts. With optional inlet accessories. the pDR 1000 weighs only 0. yet attractive.5 monitoring. Air surrounding the monitor circulates freely through the open sensing chamber by natural convection.001 to 400 mg/m3 (auto-ranging). With an isokinetic sampling set.05) with sharp. well defined particle separation characteristics. operated on a table top. hand held. and exceptionally low power consumption. Reliable And Economic. the pDR-1200 can be applied to stack and duct extractive sampling/monitoring. With this passive nephelometric sampling method. ease of programming (using a PC and included software). The pDR-1200 uses a pump module (pDR-PU) or other sampling pump to perform particle size selective measurements. long-term stability. as well as continuous emission and test chamber monitoring. Passive Air Sampling is Silent. Extremely Compact and Rugged Design Palm-sized. It offers unmatched measurement precision and stability. an optically feedback-stabilized sensing system. The real-time aerosol monitor incorporates an optimally designed metal cyclone (BGI Model GK 2.5 kg (18 oz) and can be attached to a belt or a shoulder strap. and rigid all-metal construction. Compact.MIE Optical Real Time Monitors 12 10 8 d50 (µm) personal DataRAM 1000 without Pump. 6 4 2 0 2 4 6 Flow Rate (liters/minute) 8 personal DataRAM 1200 for Active Air Sampling and Aerodynamic Sizing Designed for Size Selective Particulate Monitoring Applications. diffusion. concentration measurements do not depend on the air velocity through the sensing chamber. and ease of use of the following original personalDataRAM. The pDR-1200 provides all the exceptional performance. and reliability. and background air motion. data logging and output versatility. brushed extruded aluminum case is designed to protect the unit's optics and elecronics in even the hashest industrial environments. By operating the pump at specific sampling flow rates. thoracic. ultra-low power consumption (negligible internal heating). the pDR-1200 can also be used for ambient air measurements under variable wind and high humidity conditions. The personalDataRAM pDR-1200 is a small. it is ideal for respirable. and PM 2. The personalDataRAM's rugged. or mounted on a tripod. the direct reading personal aerosol monitor personalDataRAM sets the standards for sensitivity. advanced features. Valves – no Maintenance – Mobile or Stationary With a measurement range from 0. These capabilities allow its use in many applications where such compact monitors were previously considered unsuited. lightweight. Since "elemental" or "black" carbon is the dominant optically absorbing species in the atmosphere. and BS 3405. This spezies is a tracer for combustion emissions and is a major component of PM 2. user selected from 2 seconds to 1 hour. this corresponds to a resolution of 0. with hundreds of predecessor units installed worldwide. and is selfcontained in a lightweight weatherproof carrying case. The unique aspect of the instrument's operation is the flow control system which maintains a fixed flowrate through the system against increasing pressure drop as the filter collects the particulate. The self-contained instrument is designed for automatic. recovers 10 M 9096 "Mini" Stack Sampler The Andersen M 9096 Stack Train is a revolutionary approach for low cost. with temporal resolution selectable from 1 hour down to 2 seconds. The instrument runs automatically from power-up. Time base and air flow rate may be varied by the user to optimize sensitivity versus tabe use.5 in urban areas. extendible modular probe assembly.Black Carbon and Stack The Aethalometer Real Time Aerosol Analyzing The Aethalometer from Andersen measures the "black" or "elemental" carbon component of aerosols in ambient air. . The rate of increase of optical absorption is due to the mass of BC collected per time base period. manual isokinetic sampling for particulate. the spot blackness may be equated to a mass of BC according to calibration performed by intercomparisons with standard chemical analysis techniques. Sample collection proceeds on a 1 cm3 spot until a threshold optical density is reached. The M 9096 consists of a 47 mm instack filter in various configurations. The optical measurement is radiometric and no external calibration materials are required. Numerous independent field studies have validated the Aethalomter calibration against standard chemical analysis. This easy-to-use system fully complies with the requirements of ISO 9096. indoor and occupational environments. unattended monitoring in environments ranging from urban settings to remote locations. Operation Principle The Aethalometer collects the aerosol on a quartz fiber tape and measures the optical absorption continuously while the aerosol spot accumulates. No consumables are required other than a roll of quartz fiber tape. combined with the air flow rated measured by the mass flow meter. integral pump and dry gas meter. optional temperature/ pressure or velocity meters. to be compared with typical urban BC concentrations of 5 to 25 ug/m3. Analytical Performance The Aethalometer can detect an increment of less than 1 nanogram of BC on the filter.025 ug/m3. The Aethalometer is based on two decades of experience in the measurement of optically-absorbing aerosols. from outages and pre-sents data directly as BC concentration in µg/ m3. at which time the tape automatically advances. At a flow rate of 4 SLPM and a time base of ten minutes. average one roll per year. drying handle and a selection of nozzles. This improves the accuracy of the overall isokinetic flow measurement. filter tape is the only material used. All components prior to filtration are 316 stainless steel. Such information includes particle behavior after leaving the stack.4 micrometers diameter. At 28. By designing stages with higher aerosol jet velocities. multiorifice sampler designed to measure the size distribution and mass concentration leves of solid particulates and liquid aerosols directly. The CASE-PM 10 and CASE-PM 2.3 lpm the particle fractionation ranges from 10. smaller diameter particles are collected at each stage.5 microns by using in-stack cyclones operated at a constant flow rate. Andersen cascade impactors are made up of classification stages consisting of a series of jets and impaction surfaces. Particle bounce and wall losses virtually eliminated. an aerosol stream passes through the jets and impacts upon the surface. Particles too small to be impacted on the last collection plate are collected in the backup filter. Gravimetric analysis allows reference method precision. area of environmental deposition. This method applies to the measurement of particulate matter at an aerodynamic size of 10 or 2. Eight Stage Non-Viable Impactor Andersen Eight Stage Cascade Impactor is a multi-stage. At each stage. Samples are separated by the cyclones and collected on a preweighed filter media. Ease of operation and calibration.0 to 0. type of control equipment required to collect particles and efficiency of existing control equipment.Andersen Impactors Mark III In-Stack Cascade Impactor Andersen Mark III Stack Sampling Head is designed to operate with existing stack trains containing the "EPA type" pitobe with only minor modification to the pitobe. The particle size range collected at each of the eight stages depends on the je orifice velocity of the specific stage. In-Stack Cascade Cyclone Samplers The Andersen In-Stack Cascade Cyclone Samplers are in-stack. Fractionating particles aerodynamically in-stack provides information that is not available with other samplers. Stainless steel. probable point of respiratory deposition. only the flowrate of Anderson Cascade Impactors needs to be verified to provide "calibrated performance". resulting in the impaction of progressively smaller particles in the succeeding stages.5 are used to determine particulate emissions at 10 and 2. Gravimetric or chemical sample analysis. The combination of a constant flow rate and successively smaller diameter orifices increase the velocity of sample air as it cascades through the sampler. multistage cyclones which easily attach to EPA Method 5 or other stack sampling probes and measure the complete size distibution of particulate emissions. the distance between the orifices and characteristics of the preceding stage. smaller particles passing as aerosol into the next jet stage. Empirically proven with over thirty years of data. High mass collection and high flow rate. 11 .5 microns by US EPA Method 201A (PM 10) and the Draft Method for PM 10 and PM 2. glass or filter substrates available.5. Features Samples wet or dry particulates. Particles in the aerosol stream with a large enough inertia will settle upon the impaction plate. Can be completely sanitized. Andersen impactors satisfy these constraints and have been proven to be the most effcient for collection of bioaerosols. There are two constraints on all viable particle samplers: the particle must be separated from the air.O. 2 or 6 stage version. Available as 1. incubated. and counted by an accepted method. Features NIOSH report confirms Andersen Viable Impactors are most accurate microbial samplers. Food processing area. Brewery fermentation. Viable (Microbial) Samplers Microbiological content of air has become a significant environmental concern as the need for "contamination-free" air increases.Andersen Impactors and Cyclones Marple 290 Personal Cascade Impactor The Andersen Marple 290 Personal Cascade Impactor is the first precision cascade impactor worn by the worker giving complete. Cosmetic manufacturing. Filter and clean room efficiency studies.3 lpm). A petri dish containing an agar medium appropriate for the microorganisms which may be encountered is placed in the instrument and a sample of air is drawn. Flow rate does not jeopardize collected organisms. accurate aerodynamic particle size distribution.B 1660 · D-91051 Erlangen / Germany A Thermo Instrument Systems Company Please visit our website www.de/andersen/ Postal address: P . therefore very "sharp cuts". Rugged Series 290 impactors are compact and lightweight with Andersen's patented radial slot design. and the ability of the particle to reproduce must be maintained.andersen@esm-online. The collection and assessment of aerosol samples is very simple. Simple operation. Based on the inertial impaction principle. minimal internal losses and absence of particle bounce. The petri dish is then removed. Agricultural emissions. Environmental Monitoring ESM Andersen Instruments ESM Andersen Instruments GmbH Frauenauracher Strasse 96 D-91056 Erlangen / Germany Phone: +49 91 31 909-202 Fax: +49 91 31 909-156 eMail: esm.esm-online. Only Andersen viable sampler have verifiable flow rate (28.esmonline.de/ andersen/ 3/6/00 · Subject to changes . Low initial cost. Pharmaceutical production. CFUs (colony forming units) easily determined. Animal care laboratories. widely acclaimed for accuracy.de Internet: www. Hospital environments. Easy calibration. Wastewater treatment plants. Viable particulate samplers are used to collect airborne bacteria and fungi. Inlet Cones are Easy to Calibrate and Give a More Representative Sample Microbial Sampling Applications Indoor air quality studies. Grain processing and transportation.