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1 目的和适用范围ISO7857的这一部分规定了冷水复式水表的选择、连接管件、安装和新的或经修理后的水表首次使用的准则,以保证精确与稳定的测量和水表的可靠读数。适用范围如ISO7858/1的规定。ISO7858的本部分只涉及复式水表的安装。
1 Purpose and Scope This section of ISO 7857 specifies the criteria for the first choice of cold water manifolds, connecting pipe fittings, installation and new or repaired water meters to ensure accurate and stable measurements and reliable readings of the water meter. The scope of application of the provisions of ISO7858 / 1. This part of ISO7858 only covers the installation of multi-meter.