INDUSTRY FIELD GUIDE
Crushed limestone gradation records for AI review
A gradation sheet can be reissued without adding a second physical sample.
NAICS 212312 · Crushed and Broken Limestone Mining and Quarrying
A gradation sheet can be reissued without adding a second physical sample. USGS publishes aggregates industry context, and FHWA publishes materials testing forms. A quarry can demonstrate revision matching with artificial sieve results and independent labels. USGS aggregates information · FHWA materials testing forms
Invent two lots and one corrected result. Give the second lot a delivery record but no matching sample. Ask which record is current for the selected lot and whether the documented evidence supports comparison. Label the sample, unit and reported basis. Do not ask the model to accept or reject construction materials.
Keep actual material quality data, site details, pricing, customer specifications and plant settings private. Use mock records and no live site activity.
Describe a gradation records exercise
Original Fiund exercise
A corrected gradation sheet is not a second sample
An invented limestone record pack contains a single sampled lot, a corrected report and a delivery for another lot. Sieve labels and values are illustrative, with no acceptance threshold.
| Record | Source | What it records |
|---|---|---|
| LG1 | Practice report revision 1 | Sample Q-6 from lot L-A reports 40% passing invented sieve S. |
| LG2 | Authorized report revision 2 | Corrects Q-6 to 43% passing sieve S; same sample and lot; replaces revision 1. |
| LG3 | Fictional delivery ticket | Lot L-B delivered on the same date. No sample or gradation result for L-B is attached. |
Question for the model
What is the current reported value for L-A, how many sampled specimens are documented, and what can be reported for L-B?
Show the reference answer and checks
LG2 makes 43% the current reported value for sample Q-6 from L-A and explicitly supersedes LG1. The two revisions describe one documented specimen, not two independent samples. LG3 establishes a delivery record for L-B but supplies no sample relationship or gradation result for that lot. No value for L-B can be inferred from the shared date.
- Averaging the superseded 40% with the corrected 43%.
- Treating L-B's delivery date as evidence that Q-6 sampled that lot too.
Fields to preserve
- Sample-to-lot association
- Protects the material identity through report revisions.
- Supersession relation
- Makes the authoritative version explicit.
- Sieve label and reporting unit
- Keeps the measurement tied to its stated definition.
- Delivery versus sampling evidence
- Separates shipment status from quality observation.
Test another case
Introduce an amendment correcting the lot association but leaving the numerical result intact. Score whether the system changes the attribution without fabricating a new physical measurement.
Use invented lots and independently written reports. Exclude actual quarry data, buyer requirements and plant settings. The answer does not approve limestone for any project.
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.