1范围本标准规定了热水水表的技术特性、计量特性、压力损失和标记。本标准适用于采用直接的机械方法装备在壳体内，利用带活动壁的容积室（“容积式”水表）或利用水速对可动部件的作用（“速度式”水表）来连续测量流过水的体积的积算测量仪表。本标准适用于常设流量范围为06 1 Scope This standard specifies the technical characteristics of hot water meter, measurement characteristics, pressure loss and marking. This standard applies to direct mechanical methods used in the housing, the use of movable wall with the volume of the chamber (“volumetric” water meter) or the use of water velocity on the movable components (“speed” water meter) to continuously measure the flow Water volume measurement instrument. This standard applies to the permanent flow range of 06