ASTM F1991-99(R2021) pdf free download

ASTM F1991-99(R2021) pdf free download.Standard Test Method for Performance of Chinese (Wok) Ranges
1. Scope
1.1 This test method evaluates the energy consumption and performance of Chinese ranges. The food service operator can use this evaluation to select a Chinese range and understand its energy performance. 1.2 This test method is applicable to nonthermostatically- controlled, gas and electric Chinese ranges, including both discreet burners, elements, and induction units. 1.3 The Chinese range can be evaluated with respect to the following (where applicable): 1.3.1 Energy input rate (10.2), 1.3.2 Pilot energy rate, if applicable (10.3), and 1.3.3 Heatup energy efficiency and production capacity (10.5). 1.4 The values stated in inch-pound units are to be regarded as 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 appro- priate safety, health, and environmental practices and deter- mine 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.
4. Summary of Test Method
4.1 The Chinese range is connected to the appropriate metered energy source, and energy input rate is determined for each type of cooking well on the Chinese range and for the entire Chinese range (all cooking wells operating at the same time) to confirm that the appliance is operating within 5 % of the nameplate energy input rate. The pilot energy consumption also is determined when applicable to the Chinese range being tested. 4.2 Energy consumption and time are monitored as each well of the Chinese range is used to heat the water in the wok from 70 to 200°F (21 to 93°C) at the full-energy input rate. Heatup energy efficiency and production capacity are calcu- lated from this data.
5. Significance and Use
5.1 The energy input rate is used to confirm that the Chinese range under test is operating at the manufacturer’s rated input. This test also indicates any problems with the electric power supply or gas service pressure. 5.2 The pilot light, where applicable, energy rate can be used by the food service operator to estimate energy consump- tion during noncooking periods. 5.3 Heatup energy efficiency is a precise indicator of Chi- nese range energy performance under full-load conditions. This information enables the food service operator to consider energy performance when selecting a Chinese range. 5.4 Production capacity is used by food service operators to choose a Chinese range that matches their food output require- ments.
6. Apparatus
6.1 Analytical Balance Scale, for measuring water and wok weights with a resolution of 0.01 lb and an uncertainty of 0.01 lb. 6.2 Barometer, for measuring absolute atmospheric pressure, to be used for adjustment of measured gas volume to standard conditions, and it shall have a resolution of 0.2 in. Hg and an uncertainty of 0.2 in. Hg. 6.3 Canopy Exhaust Hood, 4 ft in depth, wall-mounted with the lower edge of the hood 6 1 ⁄ 2 ft from the floor and with the capacity to operate at nominal exhaust ventilation rate of 300 cfm per linear foot. This hood shall extend a minimum of 6 in. past both sides of the cooking appliance and shall not incor- porate side curtains or partitions. Makeup air shall be delivered through face registers or from the space, or both. 6.4 Data Acquisition System, for measuring energy and temperatures, capable of multiple channel displays updating at least every 2 s. 6.5 Gas Meter, for measuring the gas consumption of a Chinese range, shall be a positive displacement type with a resolution of at least 0.01 ft 3 and a maximum uncertainty of no greater than 1 % of the measured value for any demand greater than 2.2 ft 3 /h. If the meter is used for measuring the gas consumed by the pilot lights, it shall have a resolution of at least 0.01 ft 3 and a maximum uncertainty no greater than 2 % of the measured value. 6.6 Pressure Gage, for monitoring gas pressure. It shall have a range of zero to 15 in. H 2 O, a resolution of 0.5 in. H 2 O, and a maximum uncertainty of 1 % of the measured value. 6.7 Stop Watch, with a 1-s resolution. 6.8 Temperature Sensor, for measuring gas temperature in the range of 50 to 100°F with an uncertainty of 61°F. 6.9 Thermocouple(s), industry standard Type T or Type K thermocouple wire with a range of 50°F to 250°F and an uncertainty of 61°F. 6.10 Watt-Hour Meter, for measuring the electrical energy consumption of a Chinese range, shall have a resolution of at least 10 Wh and a maximum uncertainty no greater than 1.5 % of the measured value for any demand greater than 100 W. For any demand less than 100 W, the meter shall have a resolution of at least 10 Wh and a maximum uncertainty no greater than 10 %.