Guide7 min readUpdated Jun 4, 2026

How to read certified match reasoning

The value is not just the match itself. The value is knowing why the match passed, which variables were critical, and where your margin for error is narrow.

BYBy Team BYLT

Read the clauses before you read the confidence

Every result is backed by clause-level checks. Start with what passed and what was close to the limit before you look at the headline confidence score.

Watch for tight margins

If annular space, substrate condition, or service grouping are close to the tested limit, treat the match as review-worthy before installation proceeds.

Recommended review flow

  1. 1
    Confirm the scenario inputs

    Check penetrant count, substrate, fire class, and any mixed-service assumptions first.

  2. 2
    Review the clause results

    Look for any variable marked close-to-limit or conditionally valid.

  3. 3
    Open the referenced certificate

    Use the attached datasheet or certificate before the specification is finalised.

Jump to certificate references

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