EPA Method 5: Determination of particulate matter emissions from stationary sources

Particulates are isokinetically removed from the source and collected on a glass fiber filter maintained at a temperature of 120 ±14 °C (248 ±25 °F). The mass of PM, which includes any material that condenses at or above the filtration temperature, is determined gravimetrically after removal of uncombined water.

Learn more about U.S. EPA Method 5

Apex Instruments Method 5 Equipment

The professional source sampling company must be prepared for a wide variety of conditions and locations. Apex recommends the Method 5 Kit, which can be used in both rigid and flexible configurations. Even with the classic rigid arrangement, the additional glassware allows you to have pre-measured and filled impingers, pre-weighed filter assemblies, and minimum turnaround time between runs.

Apex Method 5 Kits: SK-M5BGN, SK-M5BGN-V, SK-M5BGT, SK-M5BGT-V

US EPA Method 8: Determination of Sulfuric Acid and Sulfur Dioxide Emissions from Stationary Sources

Method 8 is designed to separate and measure sulfuric acid/sulfur trioxide emissions and sulfur dioxide emissions. Method 8 uses a manual sampling train similar to the one described in EPA Method 5 to collect particulate matter samples. The principle difference is that the filter in Method 8 is not between the probe and first impinger but between the first and second impingers. In addition, there is no requirement to heat the filter. U.S. EPA Reference Method 8 was originally developed to test emissions from sulfuric acid plants but has been adapted to sample emissions from many sulfur dioxide sources.

Learn more about U.S. EPA Method 8

Apex Instruments Method 8 Equipment
The Method 8 Sampling Kit is used with either the XC-522 or XC-572 Meter Console and an external sample pump for the determination of sulfuric acid mist and sulfur dioxide emissions from stationary sources.

Apex Method 8 Kits:
Add the following items to our Method 5 Kit to perform Method 8:

• GNFA-2U Glass Filter Holder Assembly
• GF-2 Filter Disk

US EPA Method 17: Particulate Emissions by In-Stack Filtration

This method is applicable for the determination of PM emissions, where PM concentrations are known to be independent of temperature over the normal range of temperatures characteristic of emissions from a specified source category. Particulate matter is withdrawn isokinetically from the source and collected on a glass fiber filter maintained at stack temperature. The PM mass is determined gravimetrically after the removal of uncombined water.

Learn more about U.S. EPA Method 17

Apex Instruments Method 17 Equipment

The Apex Instruments Method 17 sampling kit is a convenient package for sampling particulate matter. Multiple fitting arrangements and filter assemblies are available with an in-stack filter. Add an in-stack filter assembly and longer pitot tip to a Method 5 system.

Apex Method 17 Kits: SK-M17, SK-M17-V

US EPA Method 23: Determination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans from stationary sources (dioxins and furans)

Method 23 identifies and determines the concentration of specific PCDD, PCDF, PCB, and PAH compounds. Particulate and gaseous target contaminants are extracted from the gas stream isokinetically and collected on the sample probe, a glass or quartz fiber filter, and a packed column of adsorbent material. This method is not intended to differentiate between target compounds in particulate or vapor fractions. Target compounds are extracted from the combined sample collection media. Portions of the extract are chromatographically fractionated to remove interferences, separated into individual compounds or simple mixtures by HRGC, and measured by HRMS. This method uses isotopically labeled standards to improve method accuracy and precision through isotope dilution quantitation.

U.S. EPA Method 23 PDF 
Learn more about U.S. EPA Method 23 

Apex Instruments Method 23 Equipment

The Apex Instruments Method 23 (Modified Method 5) Source Sampler Kit is used for the determination of dioxins and furans (D/F’s) in accordance with Method 23 and/or Determination of Semi-Volatile Organic Compounds as M0010. This train adds a water-cooled glass condenser, an XAD adsorbent module, and a large capacity METHOD 23 knockout impinger to the Method 5 system.

Apex Method 23 Kits: SK-M23DP, SK-M23DP-V

US EPA Method 26A: Determination of hydrogen halides and halogen emissions from stationary sources using the isokinetic method

Gaseous and particulate contaminants are isokinetically removed from the source and collected in an optional cyclone, filter, and sorbent solutions. The cyclone collects liquid droplets and is not required if the emission source does not contain liquid droplets; however, it is preferable to include the cyclone in the sampling train to protect the filter from any liquid present. The filter collects particulate matter, including halide salts, but it is not routinely recovered or analyzed. Acidic and alkaline sorbent solutions collect hydrogen halides and gaseous halogens, respectively.

Following sampling of emissions containing liquid droplets, halides/halogens dissolved in the liquid in the cyclone and filter are vaporized to gas and collected in impactors by drawing conditioned ambient air through the sampling train. Hydrogen halides solubilise in the acidic solution to form chloride (Cl-), bromide (Br-), and fluoride (F-) ions. Halogens have very low solubility in the acidic solution and pass into the alkaline solution where they hydrolyze to form a proton (H+), the halide ion, and hypohalous acid (HClO or HBrO). Sodium thiosulfate is added to the alkaline solution to ensure reaction with the hypohalogen acid to form a second halide ion such that 2 halide ions are formed for every molecule of halogen gas. Halide ions in the separated solutions are measured by ion chromatography (IC). If desired, particulate material recovered from the filter and probe is analyzed following the procedures in Method 5.

Learn more about  U.S. EPA Method 26A

Apex Instruments Method 26A Equipment

Apex Instruments Method 26A sampling train is used for the determination of hydrogen halide and halogen emissions. Method 26A is the isokinetic alternative to Method 26. This method is particularly suited for sampling sources controlled by wet scrubbers emitting acid droplets. The method requires a Method 5 sampling train with the use of additional impingers, reagents, and PTFE-coated glass fiber filter media.

Apex Method 26A Kits:
Add the following items to our Method 5 Kit to perform Method 26A:

• NG-SET-S
• NTG-10U
• SB-4
• GF-3TPG
• BS28WS
• GN-9AK
• GN-9AO
• GN-9A
• GN-11
• NBT-1/2
• PBX-10T
• PBT-5/8

US EPA Method 29: Determination of Metals Emissions from Stationary Sources

A stack sample is isokinetically drawn from the source, particulate emissions are collected in the probe and on a heated filter, and the gaseous emissions are then collected in an aqueous acidic solution of hydrogen peroxide (analyzed for all metals including Hg) and an aqueous acidic solution of potassium permanganate (analyzed for Hg only). The recovered samples are digested and the appropriate fractions are analyzed for Hg by cold vapor atomic absorption spectroscopy (CVAAS) and for Sb, As, Ba, Be, Cd, Cr, Co, Cu, Pb, Mn, Ni, P, Se, Ag, Tl, and Zn by inductively coupled argon plasma (ICAP) emission spectroscopy or atomic absorption spectroscopy (AAS). Graphite furnace atomic absorption spectroscopy (GFAAS) is used for the analysis of Sb, As, Cd, Co, Pb, Se, and Tl if these elements require higher analytical sensitivity than can be obtained by ICAP. If desired, AAS can be used for the analysis of all listed metals if the resulting stack method detection limits meet the intent of the test program. Similarly, inductively coupled plasma mass spectroscopy (ICP-MS) can be used for the analysis of Sb, As, Ba, Be, Cd, Cr, Co, Cu, Pb, Mn, Ni, Ag, Tl, and Zn.

Learn more about U.S. EPA Method 29

Apex Instruments Method 29 Equipment

The Method 29 determination of metal emissions from hazardous waste incinerators involves a modification of the Method 5 train. The sampling train is the same as a Method 5 particulate train with the addition of up to three impingers to enhance the collection of metals of interest. The impinger train requires the SB-4 impinger case, glass nozzle and probe liner, and a non-metallic union. The method has been validated for the collection of 17 different metals. Add up to three impingers, the SB-4 impinger case, glass nozzles, probe liners and non-metallic union to a Method 5 train. The method has been validated for the collection of 17 different metals.

*The standard glass filters are replaced with low-background quartz filters. The impinger solutions are specific for different metals. Recovered samples are digested and appropriate fractions are analyzed by various means; inductively coupled argon plasma emission spectroscopy (ICPES), atomic absorption spectroscopy (AAS) or graphite furnace AAS, depending upon sensitivity required or the matrix effects on the specific analyte.* 

Apex Method 29 Kits: SKA-M29GN, SKA-M29GT  

US EPA Method 0061: Determination of hexavalent chromium emissions from stationary sources

Method 0061 determines hexavalent chromium emissions from hazardous waste incinerators, municipal waste incinerators, municipal waste combustors and sewage sludge incinerators. Isokinetically collected with a train where the impinger reagent is recirculated continuously. Samples are analyzed with an ion chromatograph. Method 0061H Hexavalent Chromium High Temperature Source Sampling METHOD 0061 Kit is used as an alternative for temperatures above 150°C (300° F).

Learn more about U.S. EPA Method 0061

Apex Instruments Method 0061 Equipment

Isokinetically collected with a train where the impinger reagent is recirculated continuously. Samples are analyzed with an ion chromatography. Method 0061H Hexavalent Chromium High-Temperature Source Sampling Kit is used as an alternative for temperatures above 150°C (300°F). Option -V is added for 240V.

Apex Method 0061 Kits: SK-0061H, SK-0061H-V

US EPA Other Test Method 45: Measurement of Selected Per- and Polyfluorinated Alkyl Substances from Stationary Sources

OTM-45 is a performance-based method applicable to the collection and quantitative analysis of specific semivolatile and condensable per- and polyfluorinated alkyl substances (PFAS) in air emissions from stationary sources. This method can also be used for the collection and recovery of ionic and covalent PFAS for non-targeted analysis (NTA) of PFAS compounds. Table 45-1 of this method lists the individual target analytes that have been evaluated for measurement by OTM-45.

OTM-45 Sampling Highlights
The stack gas is normally sampled for 4 hours at rate of less than 12.5 LPM to minimize the pressure drop across the XAD-2® module since high pressure drops across the resin can promote breakthrough. The filter temperature should be maintained above the gas dew point, but well below the standard temperatures used in Method 5 to prevent thermal decomposition of HFPO-DA (GenX) and other PFAS compounds. Sufficient ice should be added to the impinger case to keep the condenser and sorbent module at a low temperature to minimize breakthrough of target analytes.

PFAS can be partitioned in stack emissions into several different fractions due to the physical properties of these species. At the elevated temperatures typically encountered in stack emissions the vapor pressure can be sufficiently high that some is present in the gas phase. The lower molecular weight fluorotelomer alcohols (FTOHs) have lower boiling points and so may primarily be present as vapors. PFAS can adsorb particulate matter, are highly water soluble, and can dissolve in water droplets if present in the stack.

To measure these partitioned fractions, the stack effluent is sampled isokinetically (that is, the air enters the probe at the same velocity as it is moving in the stack, to accurately sample particles and droplets) and captured on a heated filter, an XAD-2® sorbent resin tube, and in water impingers. In some test programs a second XAD-2® sorbent cartridge is included in the sample train to determine if breakthrough has occurred. The filter, sorbent cartridge, and water impingers are recovered separately, and the sample train components are rinsed with a methanol/ammonium hydroxide solution.

Additional Information about PFAS
The widespread use of PFAS and their ability to remain intact in the environment means that over time PFAS levels from past and current uses can result in increasing levels of environmental contamination. 

Materials with the potential to introduce bias include, but are not limited to:

• Teflon®, Polytetrafluoroethylene (PTFE)
• Waterproof Coatings Containing PFAS
• Fluorinated Ethylene-propylene (FEP)
• Ethylene Tetrafluoroethylene (ETFE)
• Low-density Polyethylene (LDPE)*
• Polyvinylidene Fluoride (PVDF)
• Pipe Thread Compounds and Tape

*LDPE doesn’t contain PFAS in the raw material but may contain PFAS cross-contamination from the manufacturing process. Test prior to use to be safe.

PFAS can be found in:

• Food packaged in PFAS-containing materials, processed with equipment that used PFAS, or grown in PFAS-contaminated soil or water.
• Commercial household products, including stain- and water-repellent fabrics, nonstick products (e.g., Teflon®), polishes, waxes, paints, cleaning products, and fire-fighting foams (a major source of groundwater contamination at airports and military bases where firefighting training occurs).
• Workplace, including production facilities or industries (e.g., chrome plating, electronics manufacturing or oil recovery) that use PFAS.
• Drinking water, typically localized and associated with a specific facility (e.g., manufacturer, landfill, wastewater treatment plant, firefighter training facility).
• Living organisms, including fish, animals and humans, where PFAS have the ability to build up and persist over time.

Learn more about U.S. EPA OTM 45

Apex Instruments OTM 45 Equipment

Apex Instruments has developed a new PFAS glassware train based on the current EPA Method in development. The train is a modified method 5 system with the addition of our new compact vertical condenser and two additional XAD® sorbent traps followed by knockout impingers.   

The OTM-45 train components consist of:

• the front half glassware surfaces (nozzle, probe, and front half filter holder)
• the glass fiber filter
• the back half glassware surfaces (back half filter holder and condenser coil) and
• the solid sorbent (XAD-2®) modules.

A vertical condenser is recommended by the method. In order to minimize glassware breakage during sampling, and to ease with sample recovery, a compact vertical condenser was developed to enable the glassware to fit into the standard Method 5 sample case.

The XAD-2® sorbent module has a 2:1 length to diameter ratio to increase the contact time between the sample gas and resin for adsorption efficiency. The module has a volume of 80 ccm and can hold up to 40 grams of XAD®-2 Polyaromatic adsorbent resin.

Cross Contamination Avoidance
Sampling for PFAS without contaminating the samples can be challenging due to the prevalence of these chemicals in many consumer products and in standard sampling equipment. Apex Instruments seals our glassware with chemical resistant EPDM O-rings and DuraSeal™ film to avoid cross contamination. Lab and field personnel should pay special attention to avoid cross
contamination by carefully reviewing all materials that may come in contact with the samples.

Apex OTM 45 Kits: GN-CGS-PFAS

US EPA Method 2: Determination of stack gas velocity and volumetric flow rate (S-type Pitot tube)

The average gas velocity in a stack is determined from the gas density and the measurement of the average velocity head with a Type S Pitot tube (Stausscheibe or reverse type).

Learn more about U.S. EPA Method 2 

Apex Instruments Method 2 Equipment
US EPA Method 2 is performed to determine the average stack gas velocity from measurement of the gas density and average velocity head using Type-S (Stausscheibe or reverse type) pitot tube. Apex Instruments manufactures and guarantees Type-S pitot tubes in accordance with the Method 2 design specifications. Calibration is available with purchase of pitot tubes.

Apex Instruments offers a variety of flow, pressure and temperature measurement equipment to meet US EPA Method 2 sampling criteria. We offer our automated Accu-Flow and the manual 3D flow measurement systems as well as pitot tubes, modular pitots, standard pitots, cam-locks, flanges, port adapters and packing glands.

Additionally, we carry data loggers, liquid manometers, hand held digital manometers, air velocity kits, magnahelic gauges, anemometers, pressure and temperature transducers/transmitters and supporting accessories.

Apex Instruments offers calibration equipment and services. A variety of materials, sizes and configurations are available. The most common are constructed from either 1/4-inch or 3/8-inch OD stainless-steel or alloy 600 tubing.

Apex Method 2 Kits: SK-DM2, SK-DM2D, SK-DM2M

US EPA Method 30B: Determination of total vapor phase mercury emissions from coal-fired combustion sources using carbon sorbent traps

Sorbent trap monitoring systems for mercury (STM) are designed for continuous dual sampling of vapor-phase mercury emissions from stationary combustion sources and are designed specifically to satisfy the US EPA mandated compliance for MATs reporting. All Apex mercury products are manufactured in accordance with the U.S. EPA MATS published in 40 CFR, Part 60 and 63, Appendix A, Subpart UUUUU.

Learn more about U.S. EPA Method 30B

Apex Instruments Method 30B Equipment

The STM-6000 Automated Mercury Sampling Console captures all data necessary for paired sorbent trap sampling in accordance with PS 12B or Method 30B by simplifying sampling requirements through the automation of data acquisition, sample flow adjustments, leak checks, calculations, temperature control, and calibrations.

Apex Method 30B Kits:

US EPA Method 4: Determination of moisture content in chimney gases
This method is applicable for the determination of moisture content of flue gas. A gas sample is drawn at a constant rate from the source; moisture is removed from the sample stream and determined volumetrically or gravimetrically. This method contains two possible procedures: a reference method and an approximation method.

Learn more about U.S. EPA Method 4 

Apex Instruments Method 4 Equipment

The Method 4 kit includes a probe, glassware, u-cord and Method parts to build both the rigid and flexible arrangements.

The new Method 4 Sampling Kit from Apex Instruments features the SB-6 impinger case. Designed specifically for a flexible Method 4 train arrangement, the SB-6 is crafted with lightweight stainless steel for durability and ease. The raised sides ensure that glassware is protected even in treacherous circumstances. Built with integrated strain reliefs and a leak-proof plastic liner, the SB-6 is the latest innovation in bringing efficiency to stack testing. 

Apex Method 4 Kits: SK-M4, SK-M4-V

US EPA Method 6: Determination of sulfur dioxide emissions from stationary sources

A gas sample is drawn from the sampling point in the stack. SO2 and sulfur trioxide, including those fractions in any sulfuric acid mist, are separated. The SO2 fraction is measured by the barium-thorin titration method.

Learn more about U.S. EPA Method 6

Apex Instruments Method 6 Equipment

The Method 26 extension kit for VersaCase (SK- 626) is required for modification of the Method 6 source sampling kit (SK-606) in order to perform Method 26. The sample is passed through a prepurged heated probe and filter into dilute sulfuric acid then dilute sodium hydroxide solutions which collect all the gaseous hydrogen halides and halogens, respectively. The PTFE filter collects
particulate matter including halide salts but is not routinely recovered and analyzed. The separate
solutions are analyzed by ion chromatography.

The Method 6 source sampling kit for VersaCase (SK-606) features the miniature VersaCase. Method 6 measures sulfur dioxide (SO2) emissions from stationary sources. A gas sample is taken from the stack and separated from the mist.

Apex Method 6 Kits: SK-626, SK-626V

US EPA Method 7: Determination of nitrogen oxide emissions from stationary sources

A grab sample is collected in a vacuum flask containing a dilute absorbent solution of sulfuric acid and hydrogen peroxide, and the nitrogen oxides, except nitrous oxide, are measured colorimetrically using the phenoldisulfonic acid (PDS) procedure.

Learn more about U.S. EPA Method 7

Apex Instruments Method 7 Equipment
In Method 7C and 7D, a sample is passed through a series of special, full-size orifice impingers that contain an alkaline-potassium permanganate solution. The sample rate is between 400 and 500 cc per minute, normally three one-hour samples are collected per test. The XC- 623 is the consoles of choice. The sample is analyzed colorimetrically for Method 7C and by ion chromatography for Method 7D. Please inquire for additional details. Add “V” for 220VAC option.

Apex Method 7 Kits: CK-M7CD

US EPA Conditional Test Method 013: Determination of Sulfuric Acid Vapor or Mist and Sulfur Dioxide Emissions from Kraft Recovery Furnaces

This method is applicable for the determination of sulfuric acid vapor or mist (including sulfur trioxide, and in the presence of other particulate matter) and sulfur dioxide emissions from kraft recovery furnaces. Tests have shown the minimum detectable limits of the method are 0.50 milligrams/cubic meter (3.1 x 10-8 lb/ft3) for sulfur trioxide. No upper limits have been established. Based on theoretical calculations, for 200 mL of 3% hydrogen peroxide solution, the upper concentration limit for sulfur dioxide in a 1.0 m3 (35.3 ft3) gas sample is about 12,500 mg/m3 (7.7 x 10-4 lb/ft3). The upper limit can be extended by increasing the quantity of peroxide solution in the impingers.

Learn more about U.S. EPA CTM-013

Apex Instruments CTM-013 Equipment

Controlled Condensate is an alternative to EPA Method 8 for determining sulfuric acid emissions. Sulfuric acid vapor or mist and the sulfur dioxide are separated by controlling the condensation based on the difference in dew points: both fractions are measured separately by the barium-thorin titration method. Controlled condensation method is the primary sampling and analytical tool for quantifying sulfuric acid emissions from stationary sources. The method is based on the selective condensation of sulfuric acid from a gas stream by means of a water-cooled condenser. The major advantage of the condensation method is that it provides reliable and reproducible SO3 and SO2 values with minimal interference from high concentrations of SO2. There are several versions of the method. There are several versions of the method. Option “-V” is added for 240V.

Apex CTM-013 Kits: SK-CC, SK-CC-V

US EPA Method 11: Determination of nitrogen oxide emissions from stationary sources

This method is applicable for the determination of the H2S content of fuel gas streams at petroleum refineries.A sample is extracted from a source and passed through a series of midget impingers containing a cadmium sulfate (CdSO4) solution; H2S is absorbed, forming cadmium sulfide (CdS). The latter compound is then measured iodometrically.

Learn more about U.S. EPA Method 11

Apex Instruments Method 11 Equipment

The XC-11 source sampler is a simple, compact flow-through meter console designed to meet US EPA Method 11 sampling of hydrogen sulfide from fuel gas streams. The console contains a precision dry gas meter securely mounted to the front panel. The meter indicates sample volume through the DGM mechanical display on the front panel. The meter also includes a 5-point low-flow calibration meeting EPA Method 6 specifications.

Sample gas enters the console via a 1/4-inch stainless steel quick-connect sample inlet. Sample gas flow is easily controlled by means of a panel-mounted needle valve with a round phenolic control knob and is displayed through an acrylic plastic rotameter mounted to the front panel. Two dial thermometers, one mounted to the meter inlet and one mounted to the meter outlet, measure the sample gas temperature entering and exiting the meter. Sample gas exits the console via a 1/4-inch stainless-steel tube stub. All components are packaged neatly into a compact, durable, light-weight transport case. The system is similar to a Method 6 console with the exception of having no internal pump. An external pump is used to purge the train after sampling.

Apex Method 11 Kits: XC-11 Console

US EPA Method 18: Measurement of gaseous organic compound emissions by gas chromatography

This method is designed to measure gaseous organics emitted from an industrial source. While designed for ppm level sources, some detectors are quite capable of detecting compounds at ambient levels, e.g., ECD, ELCD, and helium ionization detectors. Some other types of detectors are evolving such that the sensitivity and applicability may well be in the ppb range in only a few years.

Learn more about U.S. EPA Method 18

Apex Instruments Method 18 Equipment

The M180 VacBag sampler system allows you to take an integrated gas sample in accordance with the U.S. EPA Method 18 by evacuating the stainless-steel airtight container that is fitted with a gas sampling bag. This arrangement prevents the sample from coming into contact with the sample pump and possible cross contamination. The TBE enclosures come standard with clear Lexan® lid, a 1/4-inch-valved female quick connect and a 1/4-inch male quick connect.
KITS: SK-M180-6G, SK-M180-6G-V

Gas sampling bags are the first choice for collecting a variety of gaseous compounds. Gas sampling bags are referenced for many U.S. EPA Methods including 3,18 and 0040. Bags fabricated from film are inert to most gases, resist gas permeation and can be reused for most applications after proper cleaning. The bags are flexible and strong. The use of a rigid container
ensures a longer life and convenience during transporting. Gas sampling bags are fabricated from transparent 2-ml film or can be special ordered fabricated from opaque black for photosensitive compounds. Custom sizes available upon request.

Apex Method 18 Kits: SK-M180-6G, SK-M180-6G-V

US EPA Method 26: Determination of hydrogen halide and halogen emissions from stationary sources non-isokinetic method

This method is applicable for determining emissions of hydrogen halides (HX) (HCl, HBr, and HF) and halogens (X2) (Cl2 and Br2) from stationary sources when specified by the applicable subpart. Sources, such as those controlled by wet scrubbers, that emit acid particulate matter must be sampled using Method 26A

Learn more about U.S. EPA Method 26

Apex Instruments Method 26 Equipment

The Method 26 extension kit for VersaCase (SK- 626) is required for modification of the Method 6
source sampling kit (SK-606) in order to perform Method 26. The sample is passed through a prepurged heated probe and filter into dilute sulfuricacid then dilute sodium hydroxide solutions which collect all the gaseous hydrogen halides and halogens, respectively. The PTFE filter collects
particulate matter including halide salts but is not routinely recovered and analyzed. The separate
solutions are analyzed by ion chromatography.

Apex Method 26 Kits: SK-626, SK-626V

US EPA Method 0031: Determination of volatile organic compounds in gaseous emissions from a wide variety of stationary sources including hazardous waste incinerators

This method is an SW-846 Method-Defined Parameter (MDP), meaning that it may not be modified when used for Resource Conservation and Recovery Act (RCRA) testing. Method 0031 may be used to prepare volatile organic compounds that have a boiling point between -15EC and 121EC. Field application for volatile organic compounds with boiling points less than 0EC should be supported by data obtained from laboratory gaseous dynamic spiking and gas chromatographic/mass spectrometric (GC/MS) analysis according to Methods 5041 and 8260 to demonstrate the efficiency of the sampling and analysis method

Learn more about U.S. EPA Method 0031

Apex Instruments Method 0031 Equipment

The XC-6 gas sampling console is a small, lightweight, and economical sampling unit designed for measuring dry gas sample volumes when no temperature control is needed. The XC-6 has a sampling pump, a precision dry gas meter with mechanical totalizing index and leak check
wheel, a leak-free pump, a vacuum gauge, flow control valves and a rotameter for monitoring the gas flow rate. Minimum recommended sample volume is 20 liters. The flow range is dependent on the selected rotameter.

Apex Method 0031 Kits: SK-0031, SK-0031-V, SK-0031B-V

US EPA Method 0040: Sampling of Principal Organic Hazardous Constituents from Combustion Sources Using Tedlar Bags

This method is an SW-846 Method-Defined Parameter (MDP), meaning that it may not be modified when used for Resource Conservation and Recovery Act (RCRA) testing. This method establishes standardized test conditions and sample handling procedures for the collection of volatile organic compounds collected from effluent gas samples from stationary sources, such as hazardous waste incinerators and other combustion sources, using time-integrated evacuated Tedlar® bags. As indicated, the first group of compounds listed below have met Method 301 (Ref. 6) acceptance criteria in a field method evaluation study. The second group of compounds did not meet Method 301 criteria, and the third group of compounds have been identified as candidate analytes from the literature but have not been tested. This is a sample collection method and does not directly address the analysis of these samples. Gas chromatography/mass spectrometry (GC/MS) (Method 8260) is the recommended analytical technique because of its ability to provide positive identification of compounds in complex mixtures such as stack gas.

Learn more about U.S. EPA Method 0040

Apex Instruments Method 0040 Equipment

Method 0040 is designed, using gas sampling bags, for sampling principal organic hazardous constituents from combustion sources like hazardous waste incinerators. This non-isokinetic method uses a constant or proportional sampling rate dependent upon the extent and variability of the emission flow rate (Method 2). The Apex Instruments Method 0040 Kit (SK-0040) utilizes the VSB2 VersaCase cabinet, glass-lined probe assembly, glassware, coolant reservoir with submersible pump, bag enclosure and umbilical cord for connection to the XC-6230 source sampler console.

Apex Method 0040 Kits: SK-0040, SK-0040-V

US EPA Other Test Method 50: Sampling and Analysis of Volatile Fluorinated Compounds from Stationary Sources Using Passivated Stainless-Steel Canisters

OTM-50 is a performance-based method applicable to the collection and quantitative analysis of specific volatile fluorinated compounds (VFCs). The target list originates from known industrial products and products of incomplete thermal destruction. This method can be used to collect and analyze gas samples into 6-liter passivated silicon ceramic lined stainless-steel canisters, or equivalent, from stationary sources for the purpose of determining the concentration of target VFCs in Table OTM-50-1. Gaseous emissions samples collected by this method are intended to be sampled from industrial source ducts, vents, stacks, etc. Samples may be collected directly from the non-combustion stacks or vents when the moisture is relatively low (<3% volume/volume (v/v)), when sample gas temperatures are <250 °F, and when acid gases are not present. To collect samples outside these criteria, sample conditioning including moisture, acid gas, and temperature management, as described in this method, is required.

Learn more about U.S. EPA OTM 50

Apex Instruments OTM 50 Equipment

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Apex OTM 50 Kits: SK-OTM50D