Trial Purpose:
To evaluate effectiveness of the provided cleaners in regards to blood on steel
Date Run:
10/20/2017Experiment Procedure:
Testing follows the guidelines described in ASTM G122 Standard Test Method for Evaluating the Effectiveness of Cleaning Agents.
For this test stainless steel coupons were weighed before soiling and then soiled with the synthetic blood and allowed to air dry for 24 hours. The following day the coupons were once again weighed to determine the mass of the synthetic blood and then placed into the supplied cleaners of Super Nova. 1 NpHD, PentaZyme, Super Nova.1, PentaPrep Spray all prepared at the given dilutions in water. The spray was left at room temperature. The coupons were cleaned for following the required cleaning times. After cleaning the solutions were removed and rinsed in a DI water bath and air dried for under an hour. After the coupons had dried thoroughly the dirty weights were taken and it was calculated how much had been removed from the coupons.
Product, temperature and concentrations used for supplied products.
Super Nova. 1 NpHD 160 F (1/10 fl oz/gal (0.8 ml/L water)
PentaZyme Multi-Enzymatic detergent at 140 F for 2 minutes. (0.5 oz/gal of water)
Super Nova.1 Multi-Enzymatic detergent at 140 F for 2 minutes. (0.1 oz/gal of water)
PentaPrep Spray (ready to use)
Biogone 5 minutes immersion at room temperature (1 part solution 2 parts water)
Trial Results:
The pentaPrep spray was the most effective in removing the dried blood, followed by SuperNova 1 NpHD. The Pentazyme and Super Nova 1 and similar removal rates to the supplied comparative product Biogone.
| Cleaner | Dirty Wt. of Cont | Clean Wt. of Cont. | % Cont. Removed | Average |
| SuperNova .1 NpHD | 0.0224 | 0.0069 | 69.2 | 71.51 |
| 0.0136 | 0.0037 | 72.8 | ||
| 0.0102 | 0.0028 | 72.5 | ||
| Pentazyme | 0.0157 | 0.0040 | 74.5 | 73.09 |
| 0.0195 | 0.0052 | 73.3 | ||
| 0.0175 | 0.0050 | 71.4 | ||
| SuperNoval .1 | 0.0085 | 0.0020 | 76.5 | 76.85 |
| 0.0116 | 0.0025 | 78.4 | ||
| 0.0160 | 0.0039 | 75.6 | ||
| PentaPrep Spray | 0.0128 | 0.0008 | 93.8 | 93.13 |
| 0.0098 | 0.0002 | 98.0 | ||
| 0.0130 | 0.0016 | 87.7 |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
The PentaPrep spray was significantly more effective at cleaning the synthetic blood off stainless steel than the other cleaners.
