Practitioners of Ambient Environmental Sampling invariably work at either 16.67 lpm (1 M3/hr) or 38.33 lpm (2.3 M3/hr). All are required, under various National regulations, to calibrate the flow rate through their sampling devices, with some degree of regularity. Specific Brands and types of flow meter are seldom specified. Some countries are very specific about…
The International System of Units (SI) is founded, according to the National Institute of Standards and Technology (NIST) on the 7 Base Units. Quoting directly from NIST: The SI is founded on seven SI base units for seven base quantities assumed to be mutually independent, as given in Table 1. With the exception of electric current,…
Aerosols are always being passed through tubes. It could be an industrial process, a laboratory situation or passage through, or on the way to an aerosol sampler. It is an area of Aerosol Science where experienced practitioners frequently go wrong. Why? The relationships are complex and understanding comes with work and experience. Nevertheless, there are…
Users of membrane filters are often confused by the “pore size” printed in the specifications for a particular catalog number. For filters used for air sampling, pore size has nothing to do with the collection efficiency of a filter. The face velocity governs the efficiency, through the filter and the aerodynamic diameter characteristics of the…
Mesa Labs will be highlighting its BGI and BIOS DryCal product linse while exhibiting at the Inteccon trade show in January 2015 in Boca Raton, Florida. This show focuses on aerosol and environment and instrumentation units and products with these industries. Inteccon was established in 1995 and is very committed to working with firms that…
Mesa has created a new website for its BGI related products and services. This new site highlights Mesa’s BGI products including the ambient particulate air samplers such as the PQ100 and PQ200, air flow calibrators such as the Challenger, tetraCal and deltaCal, personal sampling and environmental cyclones and BGI’s Collision nebulizers. In addition, this new…
When naming products, many factors can be considered such as the product use, application and function, but creating a memorable product name requires a deeper meaning than “Product ABC”. The BGI Challenger received its name from the epic 19th century voyage. Although the 70,000 mile trek of the HMS Challenger greatly contributed to the genesis…
BGI now a part of Mesa! As you likely have heard, Mesa Labs acquired BGI earlier this year and has relocated the manufacturing operations of the BGI products to its Butler, NJ manufacturing facility. BGI’s products are a natural fit with Mesa’s line of Bios DryCal Environmental Instruments, which are used extensively in calibration of…
Mesa Labs is pleased to announce its acquisition of BGI, Inc., an ISO 9001 accredited manufacturer involved in developing the methods and equipment primarily used for particulate air sampling. BGI’s products are a natural fit with Mesa’s line of Bios DryCal Environmental Instruments, which are used extensively in…
