Hatch Cover Sealing Test Timing

Frequency and type of hatch-cover weathertightness tests per IACS UR Z7 and ship's Planned Maintenance System.

StructuralHatch

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{Interval} = f(\text{test type})

Symbol	Meaning	Unit
$Test type$	Chalk / hose / ultrasonic / light

Source: IACS UR Z7; ASTM E1002

Frequency and type of hatch-cover weathertightness tests per IACS UR Z7 and ship's Planned Maintenance System.