What is IS 4250?
IS 4250 is Indian standard, which covers the testing of Domestic used electric motor driven food-mixers and Grinders. Multipurpose machines used with certain accessories also covered by this standard.
Food Mixers and grinders can be found in nearly every Kitchen. Food mixer & Grinders are motorized small appliance. They are used especially to blend fruits, food ingredients etc.
Tests as per IS 4250
| S.No. | Clause No | Tittle of Test |
| 1. | 8 | Protection against electric shock |
| 2. | 9 | Starting |
| 3. | 10 | Input |
| 4. | 11 | Temperature Rise |
| 5. | 13 | Electrical insulation & Leakage current at operating temperature |
| 6. | 15 | Moisture Resistance |
| 7. | 16 | Insulation resistance and Electric strength |
| 8. | 18 | Endurance |
| 9. | 19 | Abnormal Operation |
| 10. | 20 | Stability and Mechanical hazards |
| 11. | 21 | Mechanical strength |
| 12. | 25 | Supply connections and external flexible cables and cords |
| 13. | 27 | Provision for Earthing |
| 14. | 28 | Screws and connections |
| 15. | 29 | Creepage distances, Clearance and distance through insulation |
| 16. | 30 | Resistance to heat, fire and tracking |
| 17. | 34 | Operation test |
| 18. | 35 | Temperature withstand test for bowl |
| 19. | 36 | Test for controls |
| 20. | 37 | Strength of assembly |