Trial #0
To evaluate products for corrosion potential of steel drums.
There are no related objects.
The four products were selected based on environmental indicators for potential replacement cleaners in parts cleaning. Non diluted solutions were poured into 600 ml beakers. Three preweighed steel coupons were placed into each product. The coupons soaked at room temperature for five days. During the time period, observations were made about the surface condition of the coupons. At the end of the five days, coupons were removed from the beakers and photographs were taken using a Kodak digital science DC260 Zoom Camera and observations were recorded. Following the initial photograph, coupons were rinsed in tap water for 30 seconds and wiped dry with paper towel. A second picture was taken and final weights were measured. The chemistries used are listed in Table 1.
Table 1. Cleaning Products
COMPANY PRODUCT
Envirosolutions, Inc. Bio T V-50
Ensolve Systems Grease Feast
North Atlantic Bio-Industries NAB 9000
Hazwell ForBest Sea Wash 8
SUBSTRATE MATERIAL: Steel 202 ZP (SAE-1020CR)
CONTAMINANTS: None
Figure 1 displays the three stages of the corrosion testing.
Figure 1. Coupon Conditions
| Pre-soak
|
V-50
|
Grease Feast
|
NAB 9000
|
Sea Wash 8
|
| With Out Rinse
|
V-50
|
Grease Feast
|
NAB 9000
|
Sea Wash 8
|
| With Rinse
|
V-50
|
Grease Feast
|
NAB 9000
|
Sea Wash 8
|
The V-50 and Sea Wash 8 were the only ones to not show visible signs of damaging the steel coupons. The NAB 9000 formed a white residue on the coupons within one day of soaking. Grease Feast generated a yellow residue after five days.
Gravimetric analysis revealed that all four cleaners lowered the weights of the coupons. The V-50 was caused the greatest weight change. However, the weight changes did not appear to be the result of any damage to the parts. In fact, the coupons looked cleaner after soaking in the V-50 and Sea Wash 8 products. Table 2 lists the pre- and post-weights of the steel coupons for all four cleaners.
Table 2. Corrosion Test Weights
| Cleaner
|
Coupon
|
Initial Weight
|
Final Weight
|
Weight Loss
|
| V-50
|
9
|
32.0396
|
31.8458
|
0.1938
|
|
|
10
|
31.8058
|
31.5355
|
0.2703
|
|
|
11
|
31.9825
|
31.7037
|
0.2788
|
| Grease Feast
|
13
|
31.9642
|
31.948
|
0.0162
|
|
|
14
|
32.1115
|
32.0968
|
0.0147
|
|
|
15
|
32.0391
|
32.029
|
0.0101
|
| NAB 9000
|
16
|
31.952
|
31.9189
|
0.0331
|
|
|
17
|
32.0899
|
32.0521
|
0.0378
|
|
|
18
|
32.2124
|
32.1770
|
0.0354
|
| Sea Wash 8
|
19
|
32.1251
|
32.0903
|
0.0348
|
|
|
20
|
31.7378
|
31.7150
|
0.0228
|
|
|
21
|
31.9352
|
31.9073
|
0.0279
|
From the visual observations made, both Envirosolutions V-50 and ForBest Sea Wash 8 did not cause damage to the steel surfaces. Ensolve Systems Grease Feast and North Atlantic Bio Systems NAB 9000 were not compatible with steel for extended periods of time.
No relation