Choose your answer before opening the explanation. This is a learning exercise, not a competency assessment.
You can smell ammonia on filling day. What does that tell you?
- It is ready
- Ammonia is under 10 ppm
- Hold for validated ammonia and readiness assessment
- Gypsum was forgotten
See the answer and why
Hold for validated ammonia and readiness assessment Smell cannot establish an ammonia concentration. Hold the batch for a validated release assessment; do not deliberately inhale compost gases.

