Supplier: I.W. TREMONT CO., INC.

LabExact® Grade D Coarse porosity, fast flow rate, with a 2.7 µm size particle retention. Well suited for higher volume and repetitive laboratory filtering. Also ideally used as a general prefilter to extend primary filter life.

Supplier: Cytiva

Cytiva's Whatman Grade 542 filters are acid hardened to allow high retention of fine precipitates in applications such as metal determinations and hydroxide collection.

Supplier: Bel-Art Products, a Part of SP

Designed for measuring sand and other settled matter in water and sewage, these Imhoff cones are molded of glass-clear, unbreakable styrene acrylonitrile.

Supplier: I.W. TREMONT CO., INC.

LabExact® 934-AH® glass microfiber filters are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. This material is the standard for suspended solids content and related measurements (Standard Methods 2540D and EPA Method 160.2).

Supplier: I.W. TREMONT CO., INC.

LabExact® Grade B Fine porosity, medium to fast flow rate, with a 1.0 µm size particle retention. Ideally suited for the collection of biochemical polymers that have been precipitated by denaturation. This material is twice as thick as Grade A with a higher loading capacity. May also be used as a solid particulate filter for gasses or as a prefilter.

Supplier: I.W. TREMONT CO., INC.

LabExact® Grade 934-AH® Volatile Suspended Solids (VSS) or Total Suspended Solids (TSS) filters are processed to US EPA Standard Method 2540 C, D and E, washed using reagent grade water, dried, desiccated and weighed to 4 decimal place resolution.

Supplier: I.W. TREMONT CO., INC.

LabExact® Grade Quartz A is a fine porosity binderless quartz (SiO₂) glass microfiber with a 99.999% efficiency in air filtration for the retention of 2.20 µm particles. This media meets or exceeds the physical, performance, and elemental requirements for EPA PM10, Ambient Air Monitoring methods.

Supplier: Restek

ASTM Methods D6729, D6730, and D6733 (Determination of Individual Components in Spark Ignition Engine Fuels) are designed for the determination of the individual hydrocarbons present in spark ignition engine fuels, as well as fuel blends containing oxygenates such as methyl tert-butyl ether, ethyl tert-butyl ether, tert-butanol, ethanol, etc.

Supplier: I.W. TREMONT CO., INC.

LabExact® Grade Quartz A High Temperature is a fine porosity binderless quartz (SiO₂) glass microfiber with a 99.999% efficiency in air filtration for the retention of 2.20 µm particles. This media meets or exceeds the physical, performance and elemental requirements for EPA PM10, Ambient Air Monitoring methods.

Supplier: Restek

ASTM Methods D6729, D6730, and D6733 (Determination of Individual Components in Spark Ignition Engine Fuels) are designed for the determination of the individual hydrocarbons present in spark ignition engine fuels, as well as fuel blends containing oxygenates such as methyl tert-butyl ether, ethyl tert-butyl ether, tert-butanol, ethanol, etc.

Supplier: I.W. TREMONT CO., INC.

LabExact® Grade F Fine porosity, medium flow rate, with a 0.7 µm size particle retention. Frequently used with Grade D to filter diluted aqueous solutions containing strong oxidizing, acidic, or alkaline components prior to laser spectroscopy. May also be used for TCLP analysis and collecting extremely fine precipitated proteins, including immunoglobulins.

Supplier: I.W. TREMONT CO., INC.

LabExact® Pre-washed and dried Grade 934-AH® filters for Total Suspended Solids (TSS) and Volatile Suspended Solids (VSS) are processed using reagent grade water (RGW) under strict controls to wash away extraneous fiber per the requirements of the EPA Standard 2540 C, D and E.

Supplier: Brandtech

Improve process reliability with functional validation of air-displacement pipettes with the new BRAND PLT pipette leak testing unit.