This International Standard specifies requirements for appliances for household and similar purposes to prevent the backsiphonage of non-potable water into the water mains. It also specifies requirements for hose-sets used for connecting such appliances to the water mains that supply water at a pressure not exceeding 1 MPa. NOTE 1 Examples of similar purposes are the installation of appliances in canteens, restaurants, launderettes and communal flats. NOTE 2 This standard does not apply to appliances - used for dry cleaning; - for medical purposes; - intended for industrial purposes. NOTE 3 The connection of the appliance to the water mains may be temporary or permanent. NOTE 4 When reference is made to the water mains, water supplied from a cistern or similar system is also included. NOTE 5 Many countries have requirements concerning the prevention of contamination of potable water as a result of contact with unsuitable materials upstream of a safety device.
IEC 61770-1998由国际电工委员会 IX-IEC 发布于 1998-10,于 2008-07 废止。
IEC 61770-1998 在中国标准分类中归属于: N12 流量与物位仪表,在国际标准分类中归属于: 97.040.40 洗碗机,97.060 洗衣设备。
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