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Update No. 1 was published as notification that this is now a National Standard of Canada
This PDF includes Update No. 1
This is the first edition of CSA B64.1.3, Vacuum breakers, spill-resistant pressure type (SRPVB), part of the CAN/CSA-B64 Series-01, Backflow Preventers and Vacuum Breakers. Scope
This Standard applies to vacuum breaker assemblies of the spill- resistant pressure type.
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