Editorial standards.

Every page on MetricMech is grounded in a published engineering standard, reviewed by a working engineer before publication, and updated when the underlying standard changes. This page documents the editorial process, source policy, AI disclosure, and corrections workflow.

Source policy

Every claim on MetricMech that is verifiable against a published standard is cited to that standard, by version. The site does not invent values, paraphrase from unverified secondary sources, or carry forward outdated material.

Primary sources the site relies on:

Review process

Every page goes through four stages before publication:

1. Source anchoring. The author maps the topic to one or more primary sources from the table above. Pages that cannot be anchored to a published standard are not published.
2. Drafting. First draft is produced by an engineer or AI-assisted with an engineer in the loop. Formulas, worked examples, and tolerance ranges are verified against the source standard before the draft moves forward.
3. Technical review. A working QA, production, or aerospace engineer reviews the page for technical accuracy, real-world relevance, and clarity. Reviewer comments are addressed before publication.
4. Publish with metadata. The page is published with the author byline, publication date, last-modified date, and the standards referenced. Schema.org metadata is added so the authorship is machine-readable.

AI disclosure

MetricMech uses AI assistance during the drafting phase. The site discloses this openly because the alternative — pretending the content is hand-typed when it is not — is dishonest, and because Google's helpful-content policies require disclosure when AI is the primary creator.

What this means in practice:

• AI is a drafting assistant, not the author. An engineer defines the topic, the structure, the standards to cite, and the worked-example numbers. AI produces the prose; the engineer rewrites, verifies, and finalizes.
• AI does not invent numbers. Every formula, tolerance value, and worked-example calculation is verified by the engineer against the source standard. If a number in the article cannot be traced back to a standard or a clearly-cited source, it is removed.
• AI does not write under fake bylines. Author bylines are real engineers reviewing the content. They are accountable for what their name appears on.
• The result is held to the same accuracy standard as any other engineering reference. A page is wrong or right based on whether the math and the citations check out — not on whether AI helped draft it.

Corrections policy

To report an error: file a GitHub issue with the page URL and what you observed. Public issue tracking is intentional — it lets every reader see what has been challenged, what has been corrected, and what is still in dispute.

Update cadence

Pages are revisited on three triggers:

• Standards revision. When a referenced standard is revised (e.g. AS9102 Rev C → D), affected pages are updated within 30 days.
• Reader report. Confirmed reports trigger an immediate update under the corrections policy.
• Annual review. Every page is reviewed at least once per year against the current source-standard version, even if no specific report has been received.

Citation and attribution

MetricMech content may be quoted and embedded with attribution. Specifically:

• Calculators may be embedded on third-party sites via ?embed=1 with a visible "Powered by MetricMech" link to the calculator URL.
• Articles and reference pages may be quoted up to 200 words with a link back to the original page on MetricMech.
• Standards content referenced from ASME, ISO, AIAG, and SAE remains the intellectual property of the issuing body. MetricMech provides explanatory and reference content — it does not republish the standards themselves.

Conflicts of interest

MetricMech is funded by CadNexa. This is disclosed in the site footer, the about page, and throughout the article CTAs. CadNexa references appear in editorial content when the topic is directly related to a CadNexa capability (e.g. ballooning automation, browser-based 3D viewing, FAI report generation). Editorial content is not influenced by CadNexa's marketing priorities — the calculator outputs, standards explanations, and pass/fail logic are determined by the source standards, not by what CadNexa sells.

Reviewers and contributors who work for organizations whose products are mentioned on MetricMech will disclose that affiliation in their byline.

What we don't do

• Accept paid placements that are not disclosed as such
• Modify calculator outputs to favor any particular product, supplier, or process
• Republish proprietary standards content without licence
• Use fake author personas or fabricated credentials
• Publish pages we cannot anchor to a citeable source

How to flag a concern

The fastest path is a GitHub issue. For non-technical concerns (sponsorship questions, press inquiries, partnership proposals), use the contact page.