5.1 Upon mutual agreement between the purchaser and the supplier, woven or knitted products intended for this end use should meet all of the requirements listed in Table 1 of this specification for terry products and Table 2 for non terry products.5.2 It is recognized that for purposes of fashion or aesthetics the ultimate consumer of articles made from these fabrics may find acceptable products that do not conform to all of the requirements in Table 1 or Table 2. Therefore, one or more of the requirements listed in Table 1 or Table 2 may be modified by mutual agreement between the purchaser and the seller.5.2.1 In such cases, any references to the specification shall specify that: This product meets ASTM Specification 63-707 except for the following characteristic(s).5.3 Where no prepurchase agreement has been reached between the purchaser and the supplier, and in case of controversy, the requirements listed in Table 1 or Table 2 are intended to be used as a guide only. As noted in 5.2, ultimate consumer demands dictate varying performance parameters for any particular style.5.4 The significance and use of particular properties and test methods are discussed in the appropriate sections of the specified test methods.1.1 This specification covers the evaluation of specific performance characteristics of importance in woven and knitted kitchen towel, dishcloth, crash towel, huck towel, washcloth, hand towel, bath towel, and bath sheet products for use in institutional and household environments.1.2 This specification may be used by mutual agreement between the purchaser and the supplier to establish purchasing specification requirements.1.3 The requirements in Tables 1 and 2 apply to the length and width directions for those properties where fabric direction is pertinent.1.4 This specification is not applicable for coated and laminated products, nonwoven products, or terry fabrics used for apparel.1.5 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 practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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The energy input rate test and thermostat calibration are used to confirm that the combination oven is operating properly prior to further testing and to ensure that all test results are determined at the same temperature.Preheat energy and time can be useful to food service operators to manage power demands and to know how quickly the combination oven can be ready for operation.Idle energy rate and pilot energy rate can be used to estimate energy consumption during non-cooking periods.Cooking-energy efficiency is a precise indicator of combination oven energy performance under various loading conditions. This information enables the food service operator to consider energy performance when selecting a combination oven.Production capacity can be used by food service operators to choose a combination oven that matches their food output requirements.Water consumption characterization is useful for estimating water and sewage costs associated with combination oven operation.Condensate temperature measurement is useful to verify that the condensate temperature does not violate applicable building codes.1.1 This test method covers the evaluation of the energy consumption and cooking performance of combination ovens. The food service operator can use this evaluation to select a combination oven and understand its energy consumption.1.2 This test method is applicable to gas and electric combination ovens that are operated in the combination mode only. For evaluation of a combination oven operated in either convection only mode or steam only mode, apply either Test Method F 1496 or Test Method F 1484, respectively.1.3 The combination oven can be evaluated with respect to the following (where applicable):1.3.1 Energy input rate and thermostat calibration (10.2).1.3.2 Preheat energy consumption and time (10.3).1.3.3 Idle energy rate (10.4).1.3.4 Pilot energy rate (if applicable) 10.5).1.3.5 Cooking-energy efficiency, cooking energy rate, and production capacity (10.7).1.3.6 Water consumption and condensate temperature (10.7).1.4 The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are for information only.1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

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5.1 The maximum energy input rate test is used to confirm that the dishwasher is operating at the manufacturer's rated input prior to further testing. This test method also will indicate any problems with the electric power supply, gas service pressure, or steam supply flow or pressure.5.2 Tank and booster temperatures, as well as water consumption, are adjusted to NSF specifications to insure that the test is applied to a properly functioning dishwasher.5.3 Because much of a dishwasher's operating period is spent in the idle condition, tank heater and booster idle energy consumption rate(s) are important parts of predicting dishwasher's energy consumption.5.4 The washing energy performance test determines energy usage per rack. This is useful both as a measure for comparing the energy performance of one dishwasher to another and as a predictor of the dishwasher’s energy consumption.5.5 Water-consumption characterization is useful for estimating water and sewage costs associated with dishwashing machine operation.1.1 This test method evaluates the energy and water consumption of rack conveyor, commercial dishwashing machines, hereafter referred to as dishwashers. Dishwashers may have remote or self-contained booster heater. This procedure does not address cleaning or sanitizing performance.1.2 This test method is applicable to both hot water sanitizing and chemical sanitizing rack conveyor machines, which include both single tank and multiple tank machines. Rackless conveyors (i.e. flight type machines) are included. Dishwasher tank heaters are evaluated separately from the booster heater. Machines designed to be interchangeable in the field from high temp and low temp (i.e. Dual Sanitizing Machines) and vice versa, shall be tested at both settings. Machines should be set for factory settings. If a dishwasher includes a prewash tank heater as an option, energy should be submetered separately for the prewash tank heater. This test method may be used for dishwashers with steam coil tank or booster heat, but not dishwashers with steam injection tank or booster heat. When the test method specifies to use the data plate or manufacturer’s recommendations, instructions, specifications, or requirements, the information source shall be used in the following order of preference and documented in the test report: data plate, user manual, communication with manufacturer.1.3 The following procedures are included in this test method:1.3.1 Procedures to Confirm Dishwasher is Operating Properly Prior to Performance Testing: 1.3.1.1 Maximum energy input rate of the tank heaters (10.5).1.3.1.2 Maximum energy input rate of the booster heater, if applicable (10.6).1.3.1.3 Final sanitizing rinse water consumption calibration (10.7).1.3.1.4 Booster temperature calibration, if applicable (10.2).1.3.1.5 Wash tank temperature calibration (10.3).1.3.1.6 Wash tank pump and conveyor motor calibration (10.4).1.3.2 Energy Usage and Cycle Rate Performance Tests: 1.3.2.1 Washing energy performance test (10.8).1.3.2.2 Tank heater idle energy rate (10.9).1.3.2.3 Booster idle energy rate, if provided (10.10).1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.5 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 practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This performance specification covers woven fabrics comprised of any textile fiber or mixture of fibers used in women's and girls' robes, negligees, nightgowns, pajamas, slips, or lingerie. 1.2 These requirements apply to the length and width directions for those properties where each fabric direction is pertinent. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.

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4.1 General Purpose and Intent : 4.1.1 This guide is to provide a standardized system for describing performance parameters of single-family attached and detached dwellings. The use of consensus performance standards for housing, can significantly contribute to the removal of barriers to the acceptance of traditional and innovative housing products and systems in the global marketplace. This guide in conjunction with the balance of the set of standard guides can also serve to improve communications between producers and consumers leading to enhanced quality and performance of housing. 4.1.2 This guide, in conjunction with the balance of the set of standard guides, will be useful to managers of housing procurement projects, homebuilders, designers, product manufacturers, and evaluation services. 4.2 Indoor Air Quality Issues: 4.2.1 The environment within a building impacts the health of the building occupants and their satisfaction with the space. While this guide only addresses indoor air quality, this aspect of the indoor environment is an important component of a performance approach to residential buildings. 4.2.2 The performance statements contained in this guide are relevant to the procurement of a range of built elements related to the indoor environment, including but not limited to the whole building, the exterior enclosure, HVAC subsystems, local exhaust subsystems, other ventilation subsystems and their components, filtration and air cleaning subsystems, and building materials and furnishings. 1.1 This guide contains suggested performance statements for single family residential buildings (attached and detached) that address indoor air quality performance including indoor air pollution and thermal comfort. These performance statements are not presented as proposed requirements, but are written in permissive language as suggestions that can be used in developing specifications to satisfy user needs. 1.2 This guide does not address other aspects of the indoor environment such as lighting and acoustics. 1.3 Performance statements addressing building ventilation and ventilation rates are also included in the standard, since it is premature to base performance only on indoor air pollution, that is, airborne contaminant concentrations. When health authorities have established contaminant concentration limits for residential environments, it may be possible to define indoor air quality performance in terms of contaminant concentrations rather than ventilation. 1.4 This guide is one in a series of guides containing performance statements for residential buildings that are intended for use in the procurement, specification and evaluation of one- and two-family dwellings. These companion standard guides include those noted in the Introduction above. 1.5 This guide also addresses a number of residential indoor air quality issues that can not be expressed as performance statements at this time. However, they are important enough to include in this guide to at least raise the awareness of those involved in the process of procurement, specification and evaluation. These issues are addressed in 8.3. 1.6 This guide does not include site planning objectives. However, certain issues addressing the relationship of building to site have been covered, and it is important that these few objectives not be construed as a comprehensive site specification. 1.7 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 and health practices and determine the applicability of regulatory requirements prior to use.

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1.1 This specification covers minimum slip resistance requirements for the performance of protective (safety) footwear and is intended to help reduce potential injuries. Controlled laboratory tests used to determine compliance with this performance specification shall not be deemed as establishing performance levels for all situations to which individuals may be exposed to.1.2 The cited Test Method F2913 allows for testing of alternative flooring or contaminates, or both. It is suggested that testing those alternatives be considered should specific workplace hazards exist.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 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 practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 Upon agreement between the purchaser and the supplier, fabrics intended for this end use should meet all of the requirements listed in Table 1 of this performance specification.5.2 It is recognized that for purposes of fashion or aesthetics the ultimate consumer of articles made from these fabrics may find acceptable fabrics that do not conform to all of the requirements in Table 1. Therefore, one or more of the requirements listed in Table 1 may be modified upon agreement between the purchaser and the supplier.5.2.1 In such cases, any references to the specification shall specify that: “This fabric meets ASTM Specification D4118 except for the following characteristic(s).”5.3 Where no prepurchase agreement has been reached between the purchaser and the supplier, and in case of controversy, the requirements listed in Table 1 are intended to be used as a guide only. As noted in 5.2, ultimate consumer demands dictate varying performance parameters for any particular style of fabric.5.4 The uses and significance of particular properties and methods are discussed in the appropriate sections of the specified methods.1.1 This performance specification covers woven fabrics, composed of any textile fiber or mixture of textile fibers, to be used in the manufacture of coveralls, dungarees, overalls and shop coats.1.2 This performance specification recognizes two levels of wearing severity relative to performance requirements for these fabrics.1.3 This performance specification is not applicable to woven fabrics intended for use in the manufacture of industrial-protective clothing.1.4 These requirements apply to the length and width directions for those properties where fabric direction is pertinent.1.5 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 practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 The measured energy input rate test is used to confirm that the fryer under test is operating in accordance with its nameplate rating.5.2 Fryer temperature calibration is used to ensure that the fryer being tested is operating at the specified temperature. Temperature calibration also can be used to evaluate and calibrate the thermostat control dial.5.3 Preheat-energy consumption and time can be used by food service operators to manage their restaurants' energy demands, and to estimate the amount of time required for preheating a fryer.5.4 Idle energy and pilot energy rates can be used by food service operators to manage their energy demands.5.5 Preheat energy consumption, idle energy, and pilot energy can be used to estimate the energy consumption of an actual food service operation.5.6 Cooking-energy efficiency is a direct measurement of fryer efficiency at different loading scenarios. This data can be used by food service operators in the selection of fryers, as well as for the management of a restaurant's energy demands.5.7 Production capacity can be used as a measure of fryer capacity by food service operators to choose a fryer to match their particular food output requirements.1.1 This test method covers the evaluation of the energy consumption and cooking performance of open vat fryers. The food service operator can use this evaluation to select a fryer and understand its energy efficiency and production capacity.1.2 This test method is applicable to Types 1 (counter), 2 (drop-in), 3 (floor-mounted, portable), and 4 (floor-mounted, stationary), size A, B, and C, electric (Style A, B and C) and gas (Style D) open vat fryers as defined by Specification F1963, with nominal frying medium capacity up to 50 lb (23 kg) or a vat size less than 18 in. in width. For size C, D, E and F and large open vat fryers with a nominal frying medium capacity greater than 50 lb (23 kg), or a vat size of 18 in. in width or greater, refer to Test Method F2144.1.3 The fryer can be evaluated with respect to the following (where applicable):1.3.1 Energy input rate (10.2),1.3.2 Preheat energy and time (10.4),1.3.3 Idle energy rate (10.5),1.3.4 Pilot energy rate (10.6),1.3.5 Cooking energy rate and efficiency (10.8), and1.3.6 Production capacity and frying medium temperature recovery time (10.8).1.4 This test method is not intended to answer all performance criteria in the evaluation and selection of a fryer, such as the significance of a high energy input design on maintenance of temperature within the cooking zone of the fryer.1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.1.6 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 practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 Upon agreement between the purchaser and the seller, fabrics intended for this end use should meet all of the requirements listed in Table 1 of this performance specification.5.2 It is recognized that for purposes of fashion or aesthetics the ultimate consumer of articles made from these fabrics may find acceptable fabrics that do not conform to all of the requirements in Table 1. Therefore, one or more of the requirements listed in Table 1 may be modified upon agreement between the purchaser and the seller.5.2.1 In such cases, any references to the specification shall specify that: “This fabric meets ASTM Specification D4119 except for the following characteristic(s).”5.3 Where no prepurchase agreement has been reached between the purchaser and the seller, and in case of controversy, the requirements listed in Table 1 are intended to be used as a guide only. As noted in 5.2, ultimate consumer demands dictate varying performance parameters for any particular style of fabric.5.4 The uses and significance of particular properties and methods are discussed in the appropriate sections of the specified methods.1.1 This performance specification covers knitted fabrics comprised of any textile fiber or mixture of fibers, used in men's and boy's dress shirts.1.2 This performance specification is not applicable to knitted fabrics used for interlinings.1.3 These requirements apply to both the length and width directions for those properties where fabric direction is pertinent.1.4 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 practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 This practice is based on the use of electrical resistance as an indicator of contact performance.5.2 Existing standards, such as those referenced in Section 2 as representative examples, provide the basis for applied test conditions. Modifications in procedure or sample size, or both, of existing standards may have to be made to provide for resistance measurement and to meet variability index requirements that a user may specify.5.3 This practice accommodates the use of multiple test methods, as may be required to assure satisfactory performance in a given application.1.1 This practice provides a uniform method of specifying performance requirements for (or reporting test results of) electrical contact and connection systems. Both conductor and connector system performance may be specified by this practice, separately or in combination.1.2 This practice may be used for separable or permanent contacts employing metallic conductors and contacts.1.3 This practice provides methods for both signal and power applications.1.4 This practice does not specify the sample preparation or test sequences required for determining contact performance. It is the responsibility of the user of this practice to determine the applied test sequence(s) appropriate for the application.1.5 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

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5.1 This practice provides laboratory procedures for rating the relative bioresistance of metalworking fluid formulations, for determining the need for microbicide addition prior to or during fluid use in metalworking systems and for evaluating microbicide performance. General considerations for microbicide selection are provided in Practice E2169.5.2 The factors affecting challenge population numbers, taxonomic diversity, physiological state, inoculation frequency and biodeterioration effects in recirculating metalworking fluid systems are varied and only partially understood. Consequently, the results of tests completed in accordance with this practice should be used only to compare the relative performance of products or microbicide treatments included in a test series. Results should not be construed as predicting actual field performance.1.1 This practice addresses the evaluation of the relative inherent bioresistance of water-miscible metalworking fluids, the bioresistance attributable to augmentation with antimicrobial pesticides or both. It replaces Methods D3946 and E686.1.2 In this practice relative bioresistance is determined by challenging metalworking fluids with a biological inoculum that may either be characterized (comprised of one or more known biological cultures) or uncharacterized (comprised of biologically contaminated metalworking fluid or one or more unidentified isolates from deteriorated metalworking fluid). Challenged fluid bioresistance is defined in terms of resistance to biomass increase, viable cell recovery increase, chemical property change, physical property change or some combination thereof.1.3 This practice is applicable to antimicrobial agents that are incorporated into either the metalworking fluid concentrate or end-use dilution. It is also applicable to metalworking fluids that are formulated using non-microbicidal, inherently bioresistant components.1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.5 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 practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 The energy input rate test is used to confirm that the overfired broiler is operating properly prior to further testing.5.2 Temperature uniformity of the broiler cavity may be used by food service operators to select an overfired broiler with the desired temperature gradients.5.3 Preheat energy and time can be useful to food service operators to manage energy demands and to know how quickly the overfired broiler can be ready for operation.5.4 Idle energy rate and pilot energy rate can be used to estimate energy consumption during non-cooking periods.5.5 Cooking energy efficiency is a precise indicator of overfired broiler energy performance while cooking a typical food product under various loading conditions. If energy performance information is desired using a food product other than the specified test food, the test method could be adapted and applied. Energy performance information allows an end user to better understand the operating characteristics of an overfired broiler.5.6 Production capacity can help an end user to better understand the production capabilities of an overfired broiler as it is used to cook a typical food product, helping with specification of the proper size and quantity of equipment. If production information is desired using a food product other than the specified test food, the test method could be adapted and applied.1.1 This test method evaluates the energy consumption and cooking performance of overfired broilers. The food service operator can use this evaluation to select an overfired broiler and understand its performance and energy consumption.1.2 This test method is applicable to gas and electric upright overfired broilers having input rates greater than 60,000 Btu/h (gas overfired broilers) or 10kW (electric overfired broilers).1.3 The overfired broiler can be evaluated with respect to the following (where applicable):1.3.1 Energy input rate (see 10.2),1.3.2 Temperature uniformity of the broiler cavity (see 10.3),1.3.3 Preheat energy consumption and time (see 10.4),1.3.4 Pilot energy rate (if applicable) (see 10.5),1.3.5 Idle energy rate (see 10.6), and1.3.6 Cooking energy efficiency and production capacity (see 10.7).1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.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 practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 The energy input rate test is used to confirm that the rapid cook oven is operating properly prior to further testing.5.2 Preheat energy and time can be useful to food service operators to manage power demands and to know how quickly the rapid cook oven can be ready for operation.5.3 Idle energy rate and pilot energy rate can be used to estimate energy consumption during non-cooking periods.5.4 Cooking-energy efficiency is a precise indicator of a rapid cook oven's energy performance while cooking a typical food product. If energy performance information is desired using a food product other than the specified test food, the test method could be adapted and applied. Energy performance information allows an end user to better understand the operating characteristics of a rapid cook oven.5.5 Production capacity information can help an end user to better understand the production capabilities of a rapid cook oven as it is used to cook a typical food product and this could help in specifying the proper size and quantity of equipment. If production information is desired using a food product other than the specified test food, the test method could be adapted and applied.1.1 This test method evaluates the energy consumption and cooking performance of rapid cook ovens. The food service operator can use this evaluation to select a rapid cook oven and understand its energy consumption.1.2 This test method is applicable to gas and electric rapid cook ovens.1.3 The rapid cook oven can be evaluated with respect to the following (where applicable):1.3.1 Energy input rate (see 10.2),1.3.2 Preheat energy consumption and time (see 10.3),1.3.3 Idle energy rate (see 10.4),1.3.4 Pilot energy rate (if applicable) (see 10.5), and1.3.5 Cooking-energy efficiency, cooking energy rate, and production capacity (see 10.6).1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.1.5 This test method may involve hazardous materials, operations, and equipment. This test method 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 test method to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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This specification defines the minimum filtration efficiency requirements for achieving HEPA performance for filtration systems of residential and commercial vacuum cleaners. Only residential and commercial vacuum cleaning products that are used in non-critical applications (applications not requiring the removal of hazardous dust as defined per IEC 60335-2-69) are covered by this specification.1.1 This specification defines industry acceptable test methods and approaches for evaluating residential and commercial vacuum cleaner filtration systems to HEPA filtration performance levels.1.2 This specification defines the minimum filtration efficiency requirements for achieving HEPA performance for filtration systems of residential and commercial vacuum cleaners.1.3 This specification applies only to residential and commercial vacuum cleaning products that are used in non-critical applications. Non-critical applications refers to applications not requiring the removal of hazardous dust as defined per IEC 60335-2-69.1.4 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 practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 This test method provides a standard method for evaluating the performance of sonic anemometer/thermometers that use inverse time solutions to measure wind velocity components and the speed of sound. It provides an unambiguous determination of instrument performance criteria. The test method is applicable to manufacturers for the purpose of describing the performance of their products, to instrumentation test facilities for the purpose of verifying instrument performance, and to users for specifying performance requirements. The acoustic pathlength procedure is also applicable for calibration purposes prior to data collection. Procedures for operating a sonic anemometer/thermometer are described in Practices D5527.5.2 The sonic anemometer/thermometer array is assumed to have a sufficiently high structural rigidity and a sufficiently low coefficient of thermal expansion to maintain an internal alignment to within the manufacturer's specifications over its designed operating range. Consult with the manufacturer for an internal alignment verification procedure and verify the alignment before proceeding with this test method.5.3 This test method is designed to characterize the performance of an array model or probe design. Transducer shadow data obtained from a single array is applicable for all instruments having the same array model or probe design. Some non-orthogonal arrays may not require specification of transducer shadow corrections or the velocity calibration range.1.1 This test method covers the determination of the dynamic performance of a sonic anemometer/thermometer which employs the inverse time measurement technique for velocity or speed of sound, or both. Performance criteria include: (a) acceptance angle, (b) acoustic pathlength, (c) system delay, (d) system delay mismatch, (e) thermal stability range, (f) shadow correction, (g) velocity calibration range, and (h) velocity resolution.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 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 practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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