ASTM F2519-05(R2020) pdf free download

ASTM F2519-05(R2020) pdf free download.Standard Test Method for Grease Particle Capture Efficiency of Commercial Kitchen Filters and Extractors
1. Scope
1.1 This test method can be used to determine the grease particle capture efficiency of components and systems used in commercial kitchens to capture grease effluent prior to entering the exhaust duct. The results can be used to select a filter system best suited to a particular application. 1.2 This test method is applicable to filter components and systems. The performance information is obtained for new or clean filters and does not include the performance of used or loaded filters. 1.3 The filter can be evaluated with respect to the following (where applicable): 1.3.1 Pressure drop as a function ofairflow through the filter (10.3), and 1.3.2 Particulate capture efficiency by particle size (10.4). 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are for informa- tion only. 1.5 This test method may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental prac- tices and determine the applicability ofregulatory limitations prior to use. 1.6 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Terminology
3.1 Definitions: 3.1.1 airflow rate, n—volumetric flow rate of air that passes through a filter or a bank of filters. 3.1.2 capture effıciency, n—proportion of aerosol particles removed by a filter as a function of particle size, usually expressed as a percentage. 3.1.3 cartridge filter, n—removable extractor, a removable, integral component of listed exhaust hoods, which is typically constructed of stainless steel and containing a series of horizontal baffles designed to remove grease and drain it into a container. 3.1.4 fixed extractor, n—water-wash hood or linear slot hood, a fixed, integral component of listed exhaust hoods, which is typically constructed of stainless steel and containing a series ofhorizontal baffles that run the full length ofthe hood. 3.1.5 grease filter, n—device installed into a hood to capture grease effluent before it enters the exhaust duct. Several identical devices may be installed in parallel in a hood. The device may consist of more than one component or section. 3.1.6 pressure drop, n—change in static pressure between the front surface of the grease filter and its rear surface under the rated airflow rate conditions.3.1.7 reference hood, n—Type I exhaust hood used for the “no extractors” condition when measuring the efficiency and pressure drop of fixed extractor hoods. This is typically the same hood that is used for testing removable grease filters and removable cartridge filters.
4. Summary of Test Method
4.1 There are three predominant classes of filters in kitchen ventilation grease extraction systems: removable baffle filters, removable cartridge filters, and fixed extractors. 4.2 Removable baffle and cartridge filters to be tested are installed into the test system. 4.2.1 Identical filters to be tested are installed into a standard 4-ft canopy hood connected to a nominal 12-in. round duct exhaust system. The filters should fit tightly together and into the opening and any bypasses larger than 1 ⁄ 8 -in. wide on the ends are sealed. 4.2.2 For fixed-extractor systems, a reference hood shall be used for testing conditions that call for no filters to be installed in the hood. Testing requires switching between the reference hood and the fixed extractor hood. 4.2.3 A filter system to be used in a non-standard canopy hood is installed at the height of actual application above the floor and connected to a nominal 12-in. round duct exhaust system. 4.2.4 The static pressure drop across the filters is recorded at the test airflow. 4.2.4.1 For removable baffle or cartridge filters, the net filter pressure drop is determined by subtracting the pressure drop of the hood when the filters are removed from the pressure drop measured when the filters are installed. The total exhaust volumetric flow rate must be equal in both pressure drop measurements. 4.2.4.2 For fixed-extractor hood systems, the pressure drop is determined by subtracting the pressure drop of the reference hood when the filters are removed from the pressure drop measured on the fixed-extractor hood. The total exhaust volumetric flow rate must be equal in both pressure drop measurements. 4.3 The total airflow rate through the exhaust system is set so that the volumetric flow rate through the filter under test is equivalent 250 cfm per linear foot (width) of filter (based on external filter dimensions). 4.3.1 Performance may also be evaluated at other airflows in accordance with manufacturer recommendations (see Appen- dix X1).