How we verify every figure we publish

Specification tables on the web are mostly copied from other specification tables. Ours are not. This page describes the method behind every figure P2 Industrial publishes, in enough detail that you could audit it — and we invite you to.

Every figure names its source, in visible text

Each specification we publish is traced to a named manufacturer document — a datasheet, a catalogue, a safety data sheet, or the marking on the product itself — and that document is named on the page, next to the figure, where you can see it. Not in a hidden footnote, not “source: manufacturer”. The actual document.

If you are specifying equipment, this means you can check our work. If a figure matters to your application, the citation tells you exactly which document to pull and confirm against.

When two manufacturer documents disagree

Manufacturer documentation is written over years, by different hands, and it sometimes disagrees with itself. Most catalogues silently pick one value. We do not.

When two source documents state different values for the same property, the page discloses the disagreement: it names both documents, states which is dated and which is not, and tells you to confirm the value at quotation. Two rules decide which figure, if any, leads:

• The most recent dated source governs.
• An undated source never overrides a dated one.

Where neither rule can settle it, no figure is published at all. One product page on this site carries no force figure for exactly this reason: the manufacturer’s own document states two contradictory values on the same page. Rather than choose one and present it as fact, the page says so and directs the question to quotation.

A missing figure leaves no row

Where the manufacturer publishes no value for a property a reader would expect, we do not fill the gap. No “N/A”, no dash, no value borrowed from a similar product in the same range. The row simply does not exist — and where the omission itself matters, the page says the manufacturer publishes no figure and points to the authority that does govern, such as the applicable standard or the operating manual of the machine the consumable runs on.

An empty cell is honest. A plausible number copied from the next size up is not, and in industrial equipment it can be dangerous.

Product markings count as statements — and are cross-checked

A value read from a manufacturer’s marking on the product itself — a printed maximum speed on a wheel, for instance — counts as a manufacturer statement. But a value read from a photograph is a transcription, and transcriptions get checked arithmetically before publication.

A worked example from this catalogue: a cut-off wheel’s marking states a maximum operating speed of 63 m/s alongside a maximum of 4,810 rpm on a 250 mm diameter. Those two numbers are not independent — 63 m/s on a 250 mm wheel computes to 4,813 rpm. The marked figure agrees with the computed one to 0.1%, which is what made the value publishable rather than merely plausible. Had the arithmetic not closed, the figure would have been held back and queried, not published.

Even a figure that survives this check is reference, not permission. As the terms of use state for every safety-critical value, the number you act on is the one marked on the item in your hands — a limit correct for one size or one batch may not hold for another.

A figure is only extended where a document extends it

We do not stretch a statement beyond the products it names. A shelf-life figure on this site was published only after a two-document chain closed: the manufacturer’s shelf-life sheet states a figure for a class of products, and a separate dated catalogue names the specific wheel as a member of that class. Without the second document, the first would prove nothing about that wheel, and the page would have carried no shelf-life figure.

Values extracted from PDFs are re-verified against the page

Many manufacturer specifications live in PDF ordering matrices — wide tables where each column is a size or a variant. Text extraction from these tables silently loses column alignment, so a value can end up attached to the wrong article number while looking perfectly clean. Every specification taken from a PDF matrix is therefore re-verified against the source document as visually laid out, not trusted from extracted text.

The prose is original, and machine-checked

Every description on this site is written from the cited data, not adapted from the manufacturer’s marketing text or anyone else’s catalogue. All prose is machine-checked against the manufacturer corpus for copied phrasing before publication.

Imagery works in two layers, and we say which is which. The technical diagram on a product page is generated from that product’s own cited figures, so it can only show what the specification states. The photograph beside it is the manufacturer’s own product photograph, used with their permission and rebuilt to a common presentation — trimmed to the product, placed on our standard canvas, web-sized. We do not claim to own it: every image carries, in its file metadata and in a visible caption, the photograph credited to the manufacturer and the edit and presentation credited to us. A licence to use is not a transfer of ownership, and improving an image does not create one.

What we do not do

• We do not compute safety-related limits for sizes or variants we have not seen documented. The arithmetic cross-check above validates a manufacturer’s stated figure; it is never used to invent one.
• We do not present a manufacturer’s photograph as our own work, and we do not use an image we have no permission to use. Where a photograph appears, whose it is appears with it.
• We do not state prices, stock levels, or availability anywhere on the site. Commercial terms belong to a quotation — see how to request a quotation.
• We do not claim relationships we do not hold. What we are to the manufacturers whose products we list is set out plainly in how we source, and what we are not.

Found an error? Tell us

A method like this is only credible if it accepts correction. If you find a figure on this site that disagrees with a manufacturer document you hold, write to bdm@p2.ae and name the document. A documented error will be corrected, and the correction will be dated on the page. Other ways to reach us are listed on the contact page.