论文部分内容阅读
一、现状按照计量法律法规的规定,“对于水表口径小于或等于50mm、且常用流量不超过16m3/h的水表作首次强制检定,限期使用、到期轮换(其中:标称口径25mm及以下的水表使用期限为6年,到期轮换;标称口径大于25mm至50mm的水表使用期限为4年,到期轮换)”。民用水表口径一般处于25mm及以下,因此适用该规定,按照该规定民用水表安装前必须作首次强制检定,并且实行限期使用、到期轮换,轮换期限最长为6年。
First, the status quo In accordance with the provisions of the measurement laws and regulations, "for the meter diameter is less than or equal to 50mm, and commonly used flow does not exceed 16m3 / h for the first mandatory test water meter, the deadline for use, due rotation (of which: nominal diameter 25mm and below The water meter has a service life of 6 years and expires with rotation; the water meter with a nominal diameter of more than 25mm to 50mm has a service life of 4 years and expires. Civil meter diameter is generally 25mm and below, so apply the Provisions, in accordance with the provisions of civil water meters must be installed for the first time mandatory testing, and the implementation of the deadline for use, due rotation, the rotation period of up to 6 years.