What does the out-time risk number rank?

It ranks the risk that expired freezer life or accumulated out-time reaches layup undetected. A score of 120 is 12% of the 1,000 maximum, built from the 8, 3 and 5 defaults.

How do I rate occurrence for out-time?

Use the out-time excursions your freezer log and kit records show for this material. A low rating means the material is rarely out of the freezer beyond its allowance.

Does a high detection rating mean the defect is easy to find?

No. Here the rating is detection difficulty, so 10 means the defect is hardest to catch before the part is used. That is why a hidden out-time defect raises the score.

Where should a review act first?

On the largest rating the verdict names. Lowering occurrence through freezer discipline is usually cheaper than improving detection after layup.

Composites, Fiberglass & Advanced Materials calculator

Prepreg Out Time Risk Calculator

Score the out-time failure mode the way a risk review does: severity, occurrence and detection difficulty each on a 1 to 10 scale. The product ranks the exposure and names the largest rating.

What this calculator does

Risk priority number for prepreg out-time exposure from severity, occurrence and detection ratings on the conventional 1 to 10 scales.

Formula used

Risk priority number = severity rating × occurrence rating × detection difficulty rating
Share of maximum score = risk priority number ÷ 1,000 × 100

Inputs explained

Severity Rating: Consequence rating for an out-time defect reaching layup.
Occurrence Rating: Frequency rating from freezer and out-time records.
Detection Difficulty Rating: Difficulty of catching the defect before cure.

How to use the result

Best suited to screening out-time exposure before layup, ranking prepreg handling risks in a review.
Ordinal ratings multiply as if the steps were equal, which can reorder similar modes. The score is not an accept or reject limit; a review decides that.

Current U.S. benchmarks

The producer price index for plastic resins and materials stands at 280.569 (BLS, Aug 2026), up 6.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Steel mill PPI stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. New factory orders are up 8.5% year over year (Census).

Common questions

What does the out-time risk number rank? It ranks the risk that expired freezer life or accumulated out-time reaches layup undetected. A score of 120 is 12% of the 1,000 maximum, built from the 8, 3 and 5 defaults.
How do I rate occurrence for out-time? Use the out-time excursions your freezer log and kit records show for this material. A low rating means the material is rarely out of the freezer beyond its allowance.
Does a high detection rating mean the defect is easy to find? No. Here the rating is detection difficulty, so 10 means the defect is hardest to catch before the part is used. That is why a hidden out-time defect raises the score.
Where should a review act first? On the largest rating the verdict names. Lowering occurrence through freezer discipline is usually cheaper than improving detection after layup.

Last reviewed 2026-10-01.