The following four test procedure instructional worksheets are available as PDF-format downloads.
Simply download, print and save for your reference.
1) Reduced Pressure Zone RPZ [download; 64k]
2) Double Check Valve DC [download; 62k]
3) Spill resistant vacuum breaker SVB [download; 57k]
4) Pressure Vacuum Breaker PVB [download; 59k]