Regulations & SafetyQuestion 57 of 240
DOT-approved refillable refrigerant cylinders generally must undergo hydrostatic testing (requalification) at what interval?
a.Every 5 years
b.Every 6 months
c.Every 20 years
d.They never need retesting
Explanation
Refillable DOT cylinders generally must be hydrostatically tested, or requalified, every 5 years to confirm they can safely hold pressure, and the test date is stamped on the cylinder. Testing every 6 months is unnecessary, 20 years is far too long, and cylinders do require periodic retesting. A cylinder past its test date should not be filled or transported until requalified.
Practice all 240 questions free — no signup required.
Related questions on this topic
- To avoid overfilling a recovery cylinder past 80 percent, the most reliable method is to:
- A technician receives 'empty' return cylinders from a job. Which practice is safe and legal?
- How should refrigerant cylinders be secured during transport in a service vehicle?
- Reclaimed refrigerant that will be resold must be reprocessed to meet which purity standard?
- During an EPA inspection, an inspector asks a technician to show proof of certification. What must the technician be able to provide?
- A shop owner hires technicians who recover refrigerant. What certification recordkeeping does the owner need to keep on file?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against EPA Section 608 Technician Certification Exam · How we review