1.1本试验方法包括根据系统能量平衡、对电器、通风罩或更换空气配置中的操作或设计变化的参数评估，通过测量和计算电器能耗、消耗的能量和食物能量来确定电器对空间的热增益。 1.2以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 空间热增量 — 该测试方法确定了从发动机罩/电器系统到空间的热增量。 笔记 2-为了在经过调节的空间中保持恒定的温度，该热量增益必须与空间冷却相匹配。然后，以吨为单位的空间感热冷负荷等于热增量（单位:Btu/h）除以每吨冷却的12000Btu/h（3.412 W）的转换系数。设备热增益数据可用于确定空调系统的尺寸。有关负荷计算程序的详细信息，请参阅ASHRAE (1) 和Ref (2) . 加热、通风、空调（HVAC）和排气系统设计师可以使用从不同流速下的热增益到测试空间的相关冷负荷的计算，以及其他信息，以实现节能、集成厨房通风系统设计。 参数研究 : 该试验方法也可用于对发动机罩、电器和更换空气系统的替代配置进行参数研究。一般来说，这些研究是通过保持除相关变量外的所有配置和操作变量不变来进行的。因此，本试验方法可用于评估以下各项: 各种电器的整体系统性能，同时保持发动机罩和更换空气系统的特性不变。 整个发动机罩或单个发动机罩的特性（如端盖）可以随电器和更换空气常数而变化。 更换空气的特性，如补充空气的位置、方向和体积，可以随设备和发动机罩的恒定变量而变化。

1.1 This test method covers the determination of appliance heat gain to space derived from the measurement and calculation of appliance energy consumption, energy exhausted, and energy to food, based on a system energy balance, parametric evaluation of operational or design variations in appliances, hoods, or replacement air configurations. 1.2 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. 1.3 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. ====== Significance And Use ====== Heat Gain to Space — This test method determines the heat gain to the space from a hood/appliance system. Note 2—To maintain a constant temperature in the conditioned space, this heat gain must be matched by space cooling. The space sensible cooling load, in tons, then equals the heat gain in Btu/h divided by the conversion factor of 12 000 Btu/h (3.412 W) per ton of cooling. Appliance heat gain data can be used for sizing air conditioning systems. Details of load calculation procedures can be found in ASHRAE, see Ref (1) and Ref (2) . The calculation of associated cooling loads from heat gains to the test space at various flow rates can be used along with other information by heating, ventilation, air conditioning (HVAC), and exhaust system designers to achieve energy-conservative, integrated kitchen ventilation system designs. Parametric Studies : This test method also can be used to conduct parametric studies of alternative configurations of hoods, appliances, and replacement air systems. In general, these studies are conducted by holding constant all configuration and operational variables except the variable of interest. This test method, therefore, can be used to evaluate the following: The overall system performance with various appliances, while holding the hood and replacement air system characteristics constant. Entire hoods or characteristics of a single hood, such as end panels, can be varied with appliances and replacement air constant. Replacement air characteristics, such as makeup air location, direction, and volume, can be varied with constant appliance and hood variables.