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The Excess of Cleaning Detergent Left on Clothes after Washing |
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Table of Contents |
Procedures:
1. Measured the recommended amount of detergent for 2kg load of clothes 2. Placed the designated amount of clothing for recommended sample into the washing machine and set the washing machine to cold water 3. Dissolved measured amount of detergent into the water in the washing machine 4. Obtained a sample of the dissolved water and measured its pH. Recorded. 5. Waited until the clean cycle ended. Once rinse cycle began, obtained another sample and measured the pH. Recorded 6. Waited until the water went down. Restarted the cycle and let water gather with the clothes still in the machine. Obtained a sample and measured pH. Recorded.** 7. Waited until the Rinse cycle began. Once the water collected again, obtained a sample and measured the pH. Recorded** 8. Repeated steps 2-7 with half the recommended amount of detergent 9. Repeated steps 1-8 with a second type of brand 10. Repeated steps 1-9 with a third type of brand. ** The results recorded for cycles 1 and 2 are for both the European and the North American Machine and cycles 3 and 4 are exclusively for European Machine |