Mixing and Loading Agrichemicals Flashcards
7 cards from real GROWSAFE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Mixing and Loading Agrichemicals flashcards as text
After completing the three-rinse procedure, what should be done with empty agrichemical containers in NZ?
Answer: Puncture them and dispose of through an approved collection scheme such as AgRecovery
After triple-rinsing, containers must be punctured to prevent re-use and disposed of through NZ's approved container collection schemes such as AgRecovery to ensure safe, compliant disposal.
What is the main practical hazard created by excessive foam when filling a spray tank?
Answer: Foam can cause the tank to overflow, creating a spill and contamination hazard
Excessive foam can cause the spray tank to overflow before the true liquid level is reached, resulting in chemical spills that contaminate the environment and create safety risks.
When should you calibrate your spray equipment in relation to mixing agrichemicals?
Answer: Before mixing so you know exactly what volume of spray mixture is required
Calibrating before mixing allows you to calculate the exact volume of spray mixture needed, preventing waste and ensuring you prepare the correct amount at the right rate.
What must you do if two agrichemicals you want to use are listed as incompatible?
Answer: Do not mix them together; apply each product in a separate spray operation
Incompatible products must never be combined; incompatibility can cause reduced efficacy, physical separation, equipment damage, or the creation of hazardous by-products.
What is the correct way to measure a small quantity of liquid agrichemical concentrate for mixing?
Answer: Use a clean measuring cylinder dedicated solely to that chemical
A dedicated, clean measuring cylinder ensures accurate dosing and prevents cross-contamination between different chemical products.
What records are required to be kept under NZ good practice after mixing and applying an agrichemical?
Answer: Product name and rate, area treated, date, applicator name, and weather conditions
Comprehensive records including product, rate, area, date, operator, and weather conditions are required under NZ regulations and good practice to allow traceability if issues arise.
What is the best combined approach to minimise operator exposure when adding agrichemical concentrate to a spray tank?
Answer: Use a closed transfer system or induction hopper together with appropriate PPE
Engineering controls such as closed transfer systems and induction hoppers reduce exposure at the source, while PPE provides a secondary barrier — using both together gives the best protection.