ASSE 5120 case studies
ASSE 5120 · Put your knowledge to work in context.
ASSE 5120 is a personnel certification in the ASSE International family of professional credentials, aimed at the people who test backflow prevention assemblies in the field. ASSE International - a wholly owned subsidiary of IAPMO R&T, an ANSI-accredited standards developer and ANAB-accredited product certification body - describes its personnel certification programs as covering the specialized segments of backflow prevention, service plumbing, infection control, fire protection and related fields, and states that these certifications expand skill sets, give jurisdictions a nationally recognized benchmark, and raise the employability of professionals. The ASSE 5120 case studies are 5 cases and about 2,377 words.
1The New Boiler Makeup Line and a Shared Meter
A property manager calls about a newly installed boiler makeup water line in a 12-unit apartment building. The domestic service is a 2-inch line at 70 psi static, feeding a reduced-pressure principle assembly (RPPA) at the meter.
534 words, about 3 min2Low Pressure at the Top Floor After a Device Swap
A six-story building had its old reduced-pressure assembly replaced with a new 2-inch RP. Static pressure at the street is 65 psi.
459 words, about 2 min3Which Device for a Carbonator and a Photo Lab
You are reviewing backflow protection for a mixed-use building. Tenant A operates a restaurant with a carbonator connected to the potable line and a dish sprayer with a submerged inlet.
475 words, about 2 min4The Test That Passed on the Second Try
A certified tester is checking a 2-inch RP assembly in a commercial building. On the first check, the differential pressure across the first check is 4.0 psi and holds.
461 words, about 2 min5Records, Notice, and a Device That Cannot Be Tested
During an annual inspection you find a reduced-pressure assembly installed in a below-grade vault with no drain and standing water at the bottom. The device tag shows a test date 14 months ago.
448 words, about 2 min