Low head Laboratory faucet backflow High or low ASSE 1035, CSA backpressure and preventer hazard B64.7 backsiphonage Pipe-applied atmospheric-type High or low Backsiphonage only ASSE 1001, CSA vacuum hazard Sizes 1/4″–4″ B64.1.1 breaker Pressure vacuum breaker High or low Backsiphonage only ASSE 1020, CSA assembly hazard Sizes 1/2″–2″ B64.1.2 Reduced pressure principle backflow Backpressure or ASSE 1013, AWWA High or low prevention assembly and reduced backsiphonage C511, CSA B64.4, hazard pressure principle fire protection Sizes 3/8″–16″ CSA B64.4.1 backflow prevention assembly Backsiphonage or Reduced pressure detector fire High or low backpressure protection ASSE 1047 hazard (Fire sprinkler backflow prevention assemblies systems) Spill-resistant vacuum breaker High or low Backsiphonage only ASSE 1056 assembly hazard 1/4″–2″ Low head Vacuum breaker wall hydrants, High or low backpressure or ASSE 1019, CSA frost-resistant, automatic draining hazard backsiphonage B64.2.2 type Sizes 3/4″, 1″ For SI: 1 inch = 25.4 mm. a. Low hazard—See Pollution (). High hazard—See Contamination (). b. See Backpressure (). See Backpressure, low head (). See Backsiphonage (). 608.2 Plumbing fixtures. The supply lines and fittings for plumbing fixtures shall be installed so as to prevent backflow. Plumbing fixture fittings shall provide backflow protection in accordance with ASME A112.18.1/CSA B125.1. 608.3 Devices, appurtenances, appliances and apparatus. Devices, appurtenances, appliances and apparatus intended to serve some special function, such as sterilization, distillation, processing, cooling, or storage of ice or foods, and that connect to the water supply system, shall be provided with protection against backflow and contamination of the water supply system. Water pumps, filters, softeners, tanks and other appliances and devices that handle or treat potable water shall be protected against contamination.
Laboratory faucet backflow preventer High or low hazard Low head backpressure and backsiphonage ASSE 1035, CSA B64.7 Pipe-applied atmospheric-type vacuum breaker High or low hazard Backsiphonage only Sizes 1/4″–4″ ASSE 1001, CSA B64.1.1 Pressure vacuum breaker assembly High or low hazard Backsiphonage only Sizes 1/2″–2″ ASSE 1020, CSA B64.1.2 Reduced pressure principle backflow prevention assembly and reduced pressure principle fire protection backflow prevention assembly High or low hazard Backpressure or backsiphonage Sizes 3/8″–16″ ASSE 1013, AWWA C511, CSA B64.4, CSA B64.4.1 Reduced pressure detector fire protection backflow prevention assemblies High or low hazard Backsiphonage or backpressure (Fire sprinkler systems) ASSE 1047 Spill-resistant vacuum breaker assembly High or low hazard Backsiphonage only 1/4″–2″ ASSE 1056 Vacuum breaker wall hydrants, frost-resistant, automatic draining type High or low hazard Low head backpressure or backsiphonage Sizes 3/4″, 1″ ASSE 1019, CSA B64.2.2 For SI: 1 inch = 25.4 mm. a. Low hazard—See Pollution (). High hazard—See Contamination (). b. See Backpressure (). See Backpressure, low head (). See Backsiphonage (). 608.2 Plumbing fixtures. The supply lines and fittings for plumbing fixtures shall be installed so as to prevent backflow. Plumbing fixture fittings shall provide backflow protection in accordance with ASME A112.18.1/CSA B125.1. 608.3 Devices, appurtenances, appliances and apparatus. Devices, appurtenances, appliances and apparatus intended to serve some special function, such as sterilization, distillation, processing, cooling, or storage of ice or foods, and that connect to the water supply system, shall be provided with protection against backflow and contamination of the water supply system. Water pumps, filters, softeners, tanks and other appliances and devices that handle or treat potable water shall be protected against contamination.
INTERNATIONAL_PLUMBING_CODE.docx