The hose shall be a single jacket construction with 100% virgin spun polyester yarn.
There shall also be a minimum of 12.0 filler yarns per inch in the jacket.
The thickness of the lining shall be 0.015" (381 µm) minimum and it shall be constructed of extruded T.P.U. elastomer.
The outside jacket shall be treated with yellow ENCAP elastomer, which shall completely encapsulate the jacket fibers and not merely surface coat the jacket.
The hose service temperature range shall be -60°F to 140°F (-51°C to 60°C).
FM abrasion test of 5,000 cycles minimum and Taber abrasion test of 1,000 cycles minimum.
At 600 PSIG (4200 kPa), its elongation shall not exceed 8 percent of the initial hose length, it shall not warp more than 20 inches (51 cm) and should not rise from the test table.
The hose shall not twist more than 12 turns for the 1" (25 mm) size, and not more than 8 turns for the 1-1/2" and 1-3/4" (38 and 45 mm) hoses per 100 ft (30,5 m) while at 600 PSIG (4200 kPa).
Minimum service test pressure of 300 PSIG (2100 kPa).
Minimum proof test pressure of 600 PSIG (4200 kPa).
Minimum straight burst test pressure of 900 PSIG (6300 kPa).
The hose while curved to a radius of 27" (69 cm) shall not burst at less than 900 PSIG (6300 kPa).
Meets or exceeds UL specifications.
Basic explanation of the different threads and their uses What is the difference between "NH", "NST", "NPSH", "IPT", and "NPT" threads? "NH", or National Hose, thread is the thread that has become the standard thread used in firefighting today (Cal Fire and Municipal Fire Departments). The threads specified in NFPA 1963 are "NH". This thread was previously known as "NST" or National Standard Thread. "NPSH", or National Pipe Straight Hose, is slightly smaller in diameter and has more threads per inch than the same nominal diameter "NH" thread. "NPSH" thread is sometimes referred to as "IPT", or Iron Pipe Thread and is commonly used in Forestry applications (USFS). "NH" and "NPSH" threads are not interchangeable. "NH" and "NPSH" threads are straight threads and require a gasket for sealing between mating threads. "NPT", or National Pipe Tapered, is the thread most commonly found in plumbing applications. Being tapered, the seal between mating threads is made by squeezing the threads together. No gasket is used. "NPT" and "NPSH" threads are similar in diameter and threads per inch.