Abstract: An improved method of testing a particulate filter. This is accomplished by assing a salt nuclei coated with isopropyl isostearate.

Abstract: An improved process of passing an aerosol mixture through a filter. The asol mixture solely contains in percentage, by volume, of about:______________________________________ % Chemical ______________________________________ A. 60-66 isostearic acid B. 13-17 isooleic acid C. 1-3 isopalmitic acid D. 8-10 stearic acid E. 6-12 oleic acid.

Abstract: An improved method of testing a particulate filter. This is accomplished by assing a salt nuclei coated with a mixture containing isostearic acid, isopalmatic acid, myristic acid and palmitic acid through the filter to be tested.

Abstract: An improved process of passing an aerosol mixture through a filter. The aerosol mixture solely containing the following in percentage, by volume, of about:______________________________________ % Chemical ______________________________________ 71 oleic acid 8 palmitoleic acid 7 linoleic acid 4 palmitic acid 3 myristic acid 3 myristoleic acid 1.5 linolenic acid 1.5 margaric acid 1 stearic acid.

Abstract: An improved process of passing an aerosol mixture through a filter. The asol mixture solely being a poly alpha olefin having a content of hydrocarbon % by volume of:______________________________________ % Carbon atoms, chain length ______________________________________ A. 30.9 30 B. 42.8 40 C. 20.4 50 D. 4.8 60 E. 1.1 70.

Abstract: An improved process of passing an aerosol mixture through a filter. The asol mixture solely being a poly-alpha olefin having a content of chain lengths in % by volume of about:______________________________________ % Carbon atoms, chain length ______________________________________ 0.6 20 82.1 30 16.0 40 1.0 50 2.0 60.

Abstract: An improved method of testing a particulate filter. This is accomplished by assing the following ester mixture on salt nuclei consisting essentially in percentage, by volume, of about:______________________________________ % Chemical ______________________________________ 58 methyl oleate 24 methyl stearate 14 methyl linoleate 4 methyl palmitate.

Abstract: An improved method of testing a particulate filter. This is accomplished by assing a salt nucleus coated with a composition containing a poly-alpha olefin having chain length in %, by volume, of about 97-99% of 20 carbon atoms, and about 3% of 30 carbon atoms.

Abstract: The invention concerns a baking pan assembly for forming a cavity in a muffin to which a filling may be subsequently added. The recessed cup portion of a baking pan is provided with a keyed-orifice. A conical or other symmetrical insert having a key mate with the orifice, such that the insert is centrally located in the recessed cup bottom. Alternately, single use conical or other symmetrical inserts may be placed in the recessed cup, made of paper, foil, heat resistant plastic, etc. A retaining plate may be positioned above the pan if desired to restrain the batter as it rises to form a flattened surface opposite the cavity for perfect stability once the muffin is inverted.

Abstract: A gas comparison probe contains first and second sensor elements isolated om each other. Air is drawn across a surface to be monitored and directed onto the first sensor element. Air is drawn from a location spaced away from the surface to be monitored and directed onto the second sensor element. A flow constrictor in the air flow path to one of the sensor elements is used to calibrate the outputs of the two sensor elements under known conditions before attempting to monitor air flow which may contain a gas to be detected.

Abstract: An accurate, instantaneous determination of geometric standard deviation gma.g of particle size distribution of aerosols, permitting verification that the test aerosols fall within suitable specifications and are giving test results that are truly representative of the degree of protection from smoke and aerosols that representative mask filters and filter media afford under actual use conditions. Provided herein is a more precise means of measuring aerosol penetration of gas masks. Determination of geometric standard deviation includes the steps of transmitting focused and coherent or optically filtered light from a source to a chamber containing an aerosol sample and then detecting and comparing the intensity of polarized light scattered at a first angle relative to said light source to the intensity of polarized light scattered at a second angle relative to said light source.

Abstract: An improved process of passing an aerosol mixture through a filter. The asol mixture solely contains about 70 to 76% isostearic acid, about 6 to 7% isopalmatic acid, about 7 to 11% myristic acid, and about 4 to 5% palmitic acid.