Descripción: Biodegradable plastic PET test results showing synthetic based polymers biodegrading in less than a year....
To: To: BioSphere Date: January 15, 2013 Eden Research Laboratory
From: Thomas Poth
Update
Number of pages including cover: 2 Regarding: ASTM D 5511-11 5511-11 test update for PET Clear Food Containers - 27 days
624 - PET Food Containers
2111 Menaul NE, Suite A Albuquerque, NM 87107 T 505.508.3994
I culu
Negati e
Positive
M 505.550.9316
Cumulative Gas Volume (mL)
1167.6
69.4
8771.8
6020.1
[email protected]
Percent CH4 (%)
11.6
18.1
37.0
34.0
Volume CH4 (mL)
135.4
121.5
3244.2
2046.1
Mass CH4 (g)
0.10
0.09
2.32
1.46
Percent CO2 (%)
52.6
45.1
43.9
42.5
Volume CO2 (mL)
613.9
301.8
3848.8
2558.9
Mass CO2 (g)
1.21
0.59
7.56
5.03
Sample Mass (g)
1,000
10
10
20.0
Theoretical Sample Mass (g)
0.0
8.6
4.4
17.0
0.40
0.23
3.80
2.47
Percent Biodegraded (%)
-2.0
76.9
12.1
* Adjusted Percent Biodegraded (%)
-2.7
100.0
15.8
Biodegraded Mass (g)
Biodegradation 80 60 ) % ( 40 t n e c r e 20 P
0 -20 0
8
15
23
Time (days) NEG
POS
624A-1 - PET Food Containers
30
Biodegradation Eden Research Laboratory
Update 2111 Menaul NE, Suite A
15 11 ) % ( 8 t n e c r e 4 P
Albuquerque, NM 87107 T 505.508.3994
0
M 505.550.9316
[email protected]
-4 0
8
15
23
30
Time (days) NEG
624A-1 - PET Food Containers
* Outside of the ASTM D5511 method and on the assumption a ssumption that the positive control (Cellulose) will fully biodegrade, all value have been proportionally adjusted.
