821.12 Mixing and Handling Guidelines
Definition: Proper mixing, handling and disposing of herbicides.
Where:
1. Near storage facility if possible
2. Near potable water source
3. Away from high-risk areas
- a. Water (ponds, streams, wetlands, etc.)
- b. Human populations
- c. Agricultural crops
- d. Livestock and pets
- e. Endangered species
- f. Desirable species
Why:
1. To ensure proper application rates
2. To avoid site contamination
3. To minimize waste
Methods:
A. Follow PPE (personal protective equipment) requirements as stated on label.
B. Avoid breathing vapor, spray mist, or dust when mixing or handling.
C. Tank Mixing Order for approved formulations:
- With tank half full of water, avoiding any backflow:
- 1. Add Watersoft when necessary
- 2. Wettable Powder (WP)
- 3. Flowable (F)
- 4. Other dry formulations
- 5. Emulsifiable Concentrates (EC)
- 6. Water Soluble Liquids
- 7. Adjuvants and Surfactants
- Finish filling tank so there is no backflow.
D. Wash hands thoroughly with plenty of soap and water after mixing and handling.
E. Follow manufacturers instructions for cleaning / maintaining PPE.
F. Keep all herbicides in properly labeled containers.
Special Recommendations
A. Read the label
B. Launder contaminated clothing separately. Discard clothing that has been drenched with product concentrate.