INDUSTRY FIELD GUIDE
Plastic pipe data for AI marking and dimension context
TWI explains information marked on thermoplastic pipe.
NAICS 326122 · Plastics Pipe and Pipe Fitting Manufacturing
TWI explains information marked on thermoplastic pipe. A manufacturer can propose an original task that preserves the distinction between a product designation, its recorded dimensions and the actual source material. TWI thermoplastic-pipe markings
Create fictional pipe labels, a product drawing and a sample-measurement sheet. State the exercise's nominal and measured dimensions explicitly. Ask which evidence answers a customer request and which specimen belongs to the selected product. Include a similar label from a different compound reference and a photograph with the production identifier obscured.
Annotate product designation, compound reference, specimen, measurement location, unit and visible region. Evaluation can change the marking layout and add a fitting paired with its own record. Score nominal values substituted for measured values, wrong-compound matches and invented covered text independently. The key should compare the supplied evidence without determining pressure capability or installation suitability.
Use inert pipe-shaped props and original labels. Actual customer designs, certification marks, licensed specifications and laboratory reports need authority and specialist review. A licensing proposal should define the identity-and-dimension task and checked examples. Confirm buyer requirements before preparing commercial product records or commissioning additional capture.
Discuss this original manufacturing sample with Fiund
Original Fiund exercise
A marking identifies nominal class, not a measured diameter
Fictional pipe props are cardboard. Their printed classes have no connection to actual piping standards.
| Record | Source | What it records |
|---|---|---|
| 1 | Printed label | Mock pipe P4 marked nominal N20. |
| 2 | Drawing legend | N20 is a size category; reference plane X is where diameter observations are recorded. |
| 3 | Sample worksheet | P4 outer diameter 23 mm at plane X; wall reading absent. |
Question for the model
How should these fields be reported?
Show the reference answer and checks
Record nominal category N20 from record 1 and the observed 23 mm outer diameter at X from record 3. The legend in record 2 explains why those fields can differ. No wall thickness or inner diameter is supplied in this packet.
- Converting the nominal class directly into millimeters
- Inferring an inside diameter without wall geometry
Fields to preserve
- nominal_category
- Preserves the label's classification
- measurement_plane
- Identifies where the reading applies
- diameter_type
- Distinguishes outer and inner geometry
Test another case
Provide an identical nominal label on two mock product families and require family-specific matching.
No installation instructions, pressure ratings, actual standards labeling or compliance claims.
Discuss a contribution
Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.