Fire Suppression, Sprinkler & Safety System Products calculator
Inspection Sample Size Calculator
Inspection sample capacity shows how many samples can be inspected and released in the available inspection window. It helps quality teams plan sampling workload, staffing, and documentation capacity.
What this calculator does
- Estimate accepted inspection sample capacity from samples per inspection cycle, available cycles, inspection uptime, and accepted documentation yield.
- Use it when planning QA sample inspections for sprinkler heads, valves, cylinders, alarms, detectors, extinguishers, brackets, or safety-system kits.
- Estimates accepted output capacity for inspection sample size after uptime and yield losses.
Formula used
- Gross inspection sample size = samples inspected per cycle × available inspection cycles
- Good capacity = gross capacity × uptime × yield
Inputs explained
- Samples inspected per cycle: Use a value from the same fire protection product, system, lot, route, project, or quote scope.
- Available inspection cycles: Use a value from the same fire protection product, system, lot, route, project, or quote scope.
- Inspection station uptime: Use a value from the same fire protection product, system, lot, route, project, or quote scope.
- Accepted inspection record yield: Use a value from the same fire protection product, system, lot, route, project, or quote scope.
How to use the result
- Use it for production, installation, test, inspection, filling, packaging, or kitting capacity checks.
- It does not set code requirements, design criteria, test pressure, sample plans, or acceptance limits; verify those separately.
Common questions
- What information do I need before using the inspection sample size? Use samples inspected per cycle, available inspection cycles, inspection station uptime, and accepted inspection record yield from a comparable shift or project.
- What does the result mean? It reports realistic accepted output instead of an ideal cycle count.
- When is the result only an estimate? It is an estimate when product model, hazard classification, installation conditions, inspection criteria, labor mix, pressure test method, code interpretation, supplier cost, or AHJ/customer requirements differ from the assumptions entered.
- What decision can I make from the result? Use good sample capacity to schedule QA, avoid lot-release delays, and decide whether more inspectors or stations are needed.
Last reviewed 2026-05-12.