William H. Ukers (author)
- coffee sample is treated with alcohol 80-percent alcohol by volume 16 hours ⟨total acidity determination⟩
Treat 10 grams of the sample, prepared as directed under 4, with 75 cc. of 80-percent alcohol by volume in an Erlenmeyer flask, stopper, and allow to stand 16 hours
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly and fully supported by the passage. The exact procedure for total acidity determination explicitly states: 'Treat 10 grams of the sample...with 75 cc. of 80-percent alcohol by volume in an Erlenmeyer flask...and allow to stand 16 hours,' which perfectly matches the claim's subject, predicate, object, and timeframe.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (procedural instructions). The stance is accurately 'asserts' (directive form). Sentiment is appropriately neutral for technical procedure. The time qualifier 'when: 16 hours' correctly captures the standing duration. The context 'total acidity determination' matches section 20 where this procedure appears. The quote is verbatim and directly supports the claim about treating the coffee sample with 80-percent alcohol by volume.