(1)
Except as provided in Sentence (2), back-siphonage preventers and backflow preventers shall conform to
(a)
CSA B64.0, “Definitions, general requirements and test methods for vacuum breakers and backflow preventers,”
(b)
CSA B64.1.1, “Atmospheric vacuum breakers (AVB),”
(c)
CSA B64.1.2, “Pressure vacuum breakers (PVB),”
(d)
CSA B64.1.3, “Spill-resistant pressure vacuum breakers (SRPVB),” (d.1) CSA B64.1.4, “Vacuum breaker, air space type (ASVB),”
(e)
CSA B64.2, “Hose connection vacuum breakers (HCVB),”
(f)
CSA B64.2.1, “Hose connection vacuum breakers (HCVB) with manual draining feature,” (f.1) CSA B64.2.1.1, “Hose connection dual check vacuum breakers (HCDVB),”
(g)
CSA B64.2.2, “Hose connection vacuum breakers (HCVB) with automatic draining feature,”
(h)
CSA B64.3, “Dual check valve backflow preventers with atmospheric port (DCAP),” (h.1) CSA B64.3.1, “Dual check valve backflow preventers with atmospheric port for carbonators (DCAPC),”
(i)
CSA B64.4, “Reduced pressure principle (RP) backflow preventers,”
(j)
CSA B64.5, “Double check valve (DCVA) backflow preventers,”
(k)
CSA B64.5.1, “Double check valve backflow preventers for fire protection systems (DCVAF),”
(l)
CSA B64.6, “Dual check valve (DuC) backflow preventers,”
(m)
CSA B64.6.1, “Dual check valve backflow preventers for fire protection systems (DuCF),”
(n)
CSA B64.7, “Laboratory faucet vacuum breakers (LFVB),”
(o)
CSA B64.8, “Dual check valve backflow preventers with intermediate vent (DuCV),”
(p)
CSA B64.9, “Single check valve backflow preventers for fire protection systems (SCVAF),” or
(q)
CSA B64.10, “Selection and installation of backflow preventers.”
(2)
Back-Back-siphonage preventers for tank-type water closets (anti-siphon fill valves) shall conform to ASSE 1002 / ASME A112.1002 / CSA B125.12, “Anti-siphon fill valves for water closet tanks.”