Filters & Filter Storage. MTL provides a wide range of specialized filters for laboratory analysis including Teflon®, Glass, and Quartz medias. Custom development to clients design criteria is available.
Pallflex Tissuquartz filters are pure quartz filters (with no binder) for air monitoring applications. They feature high flow rate and filtration efficiency.Glass fiber filters feature fast flow rates, high loading capacity, wide-range thermal tolerance, and excellent precipitate retention. These filters are ideal for gravimetric analyses of air pollutants and serving as prefilters for ...
Ahlstrom-Munksjö micro-quartz filters represent a complete offer for airborne particulate monitoring in high temperatures and aggressive atmospheres or when the lowest level of Trace Elements Analysis is required. These extremely pure quartz filters have a temperature stability up to 900°C. Grade MK 5 of high-purity binder-free quartz is ...
Whatman QM-A filter circles and sheets. QM-A quartz microfiber filters from Cytiva come in a wide range of circle diameters, as well as 25-piece sheets. QM-A sheets (1851-8866) are sequentially numbered according to U.S. Environmental Protection Agency (EPA) …
MilliporeSigma™ Quartz Fiber Filters . Perfect for measuring heavy metal concentrations and small amounts of particles. Manufacturer: MilliporeSigma™ AQFA03700 View more versions of this product. Catalog No. AQFA03700. $174.80 / Pack of 100; Qty ...
Quartz fiber filters are used for air sampling in acidic gases, stacks, flues and aerosols, particularly at high temperatures and in PM-10 testing. Because of the low level of alkaline earth metals, 'artifact' products of sulfates and nitrates (from SO2 and NO2) are virtually eliminated.
Glass fiber disc filters are available in a wide range of flow rates and throughput capacities. Glass fiber filters are available with or without binder resins and can be sterilized by ethylene oxide, gamma irradiation or autoclaving. Our pure quartz fiber filters have a composition that prevents the filters from reacting with acidic gases.
Filters without binder withstand up to 932°F (500°C); filters with binder withstand up to 250°F (120°C). Grades GC90, GS25, and DP70 with binder offer higher wet strength and lower fiber release. Quartz fiber filters have very low trace metal content and can withstand up to 1832°F (1000°C).
Tissuquartz Filters: Emfab Filters* Filter Media: Pure quartz, no binder: Borosilicate glass microfibers reinforced with woven glass cloth and bonded with PTFE: Diameter: 25 - 142 mm and 8 x 10 in. 12 - 142 mm and 8 x 10 in. Typical Thickness: 432 µm (17 mils) 178 µm (7 mils) Typical Filter Weight: 5.8 mg/cm2: 5.0 mg/cm 2: Typical Water Flow ...
MilliporeSigma™ Quartz Fiber Filters . Perfect for measuring heavy metal concentrations and small amounts of particles. Manufacturer: MilliporeSigma™ AQFA04700 View more versions of this product. Catalog No. AQFA04700. $197.50 / Pack of 100; Qty ...
Quartz depth filters are used for sampling for elemental/organic carbon, Diesel Particulate Matter (DPM) and trace-level contaminants. Heat treated to reduce trace organics. Binder free for maximum purity. Low metal background. Will withstand temperatures up to 1000°C (1832°F)
The filter material shall not react with or adsorb gaseous compounds contained in the gas to be sampled, and shall be thermally stable, taking into account maximum temperature anticipated (conditioning, sampling etc.). Despite their weak mechanical properties …
Quartz Extraction Thimble Filters. High purity, seamless thimble filters offered in 5 materials. Applications include analysis of fats, oils, grease, pesticides, pollutants, organics and addititives in plastics and rubbers. Silica Fiber (Quartz) thimbles are …
Quartz Fiber Filters. Highly resistant to chemical attack, biologically inert. High Purity: Very low trace metal content, does not adsorb NOx and SOx dioxides; Grade QR100 is prefired at 1,000°C for 2 hours to reduce organic contamination. ORDER.
High-purity quartz (SiO 2) microfiber filters are used for air sampling in acidic gases, stacks, flues and aerosols, particularly at high temperatures up to 500°C and in PM-10 testing.Because of the low level of alkaline earth metals, ′artifact′ products of sulfates and nitrates (from SO 2 and NO 2) are virtually eliminated.QM-A, sequentially numbered according to EPA standards, is ...
Quartz fiber filters are made of a specialized crystalline quartz microfiber material and represent the pinnacle quartz technology. Sartorius' quartz filters are quartz crystal without any addition of glass microfibers or binding agents making them very resistant to heat and highly pure. In addition, the quartz filters, grade Q3400 are ...
Additionally, unused quartz fibre filters (PALL, USA) were used as filter blanks. NIST RM 8785 (PM deposited on quartz filter) was tested as a possible standard material for quantification purposes. NIST SRM 612 was used to monitor the instrument drift …
Filtering gases even particles with a size of 0,3 µm can be adsorbed. These filters are used in a broad range of applications and are recommended for monitoring air and water quality, additionally separation of biomolecules. • Glass Fibre Filters - with binders • Glass Fibre Filters - without binders • Quartz Microfibre Filters
Filter media made of pure micro-quartz fibres with-out glass fibres and binder. Particularly appropriate for emission control at high temperatures of 900 °C and wherever absolute purity of the filter medium is required. Excellent filtration properties, minimal metal contents, outstanding weight …
A thermal-optical method has been developed for the analysis of organic and elemental carbonaceous aerosol on glass or quartz fiber filters. Organic carbon is volatilized in two steps: at 350°C in an 02(2%)-He mixture and at 600°C in He. The volatilized organic carbon is oxidized to C02' reduced to CH4, and measured by a flame ionization detector.
Recommended filters for controlling both air and water pollution. Made of borosilicate glass fibres without binders. Glass fibre filters absorb the finest particles down to 1 μm from liquids, in air, gases and even aerosols with 0.3 –0.5 μm are separated. The large surface area (about 2m²/g) provides an outstanding retention capacity.
High-purity quartz (SiO 2) microfiber filters are used for air sampling in acidic gases, stacks, flues and aerosols, particularly at high temperatures up to 500°C and in PM-10 testing.Because of the low level of alkaline earth metals, ′artifact′ products of sulfates and nitrates (from SO 2 and NO 2) are virtually eliminated.QM-A, sequentially numbered according to EPA standards, is ...
These filters are well suited for use in harsh acidic environments as they have a different chemical profile to glass fiber, reducing the risk of artifact formation, and do not require binders. Whatman QM-A high purity quartz filters have been used for air sampling for many years, and the demands on the material are greater than ever.
Filters- Glass, Quartz and Teflon ® Clean Air Express Filters are available in a variety of materials and sizes. Different filter materials are used for various types of method testing. If you are unsure which kind of filter media to purchase, call your Clean Air Express customer service representative. Filters are available in the following materials: Glass – Properties for Glass Fiber ...
Home > Laboratory > Distillation, Separation, Filtration > Filtration > Glass-Fibre Filter > Quartz microfibre filters, grade QM-A. Quartz microfibre filters, grade QM-A. Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass.
Grades of Quartz Fiber Filters Q/R100 (Whatman Eqv. QM-A) This high purity Quartz (Si02) microfiber filter is specially prefiltered at 900° C for two hours to reduce organic contamination. Recommended for sampling acidic gases at temperatures exceeding 500° C. …
Glass Fibre Filters (GFA) These low cost filters are commonly referred to as depth filters. They are ideal for general gravimetric air sampling and analysis. Suitable when no other analysis than weighing is required. ... Quartz. Quartz filters are heat treated for improved purity allowing trace level analysis. They are heat resistant and ...
Quartz Fiber Filters (Type AQFA) MilliporeSigma. Made of very pure quartz fibers with no glass fibers or binders. The pure quartz composition prevents the filters from reacting with acidic gases, unlike glass fiber filters that can react and cause false readings. This makes quartz filters well suited for measuring heavy metal concentrations and ...
…componentsWhatman QM-H fromCytiva is a pure quartz fiber filter for use in testing acidic gases, stacks, flues, and aerosols. Whatman QM-H has low heavy metal content so is well-suited for heavy metals analysis. The Whatmanrange of quartz fiber filters from Cytiva business also includes Grades…