What is the ASTM standardized testing methods
What’s the difference between the ASTM D 6400 and
ASTM D 5511 tests?
Which ASTM biodegradable testing standards does
the ENSO bottle meet?
Does the ENSO Bottle meet ASTM 6400 standards?
Who performed the 3rd party biodegradation
testing on ENSO bottles?
What is a TDS (Technical Data Sheet) and MSDS
(Materials Safety Data Sheet)?
Are ENSO bottles with the ENSO additive FDA
What analytical test can be used to show the ENSO
additive is present in PET bottles?
Has toxicology and migration testing been
performed on ENSO bottles with the ENSO additive?
Are ENSO bottles certified recyclable?
What recyclability tests have been performed on
Have burst tests been performed to verify that
high pressure carbonation will not be a problem?
- D6400 Standard Specification for Compostable Plastics –
Defines the testing parameters for performing the D5338 Test
- D5338 Standard Test Method for Determining Aerobic
Biodegradation of Plastic Materials Under Controlled Composting
Conditions – Standard test method for aerobic biodegradation for
industrial compost environments.
- D5511 Standard Test Method for Determining Anaerobic
Biodegradation of Plastic Materials Under High-Solids Anaerobic
Digestion Conditions – Standard test method for anaerobic
biodegradation for landfill environments.
The ASTM D 6400 is a standard specification
focused on testing and validating compostable plastics, passing this
standard specification will validate that the compostable plastic
will be acceptable to professional composting environments. It
is not a validation that the compostable plastics will biodegrade in
home composting environments.
ENSO bottles with the ENSO additive are
biodegradable in both aerobic and anaerobic environments. The
customary disposal method of plastic bottles being either recycled
or landfill we feel the most applicable test methods would be for
anaerobic (landfill) environments. We therefore test ENSO
bottles under the scrutiny of the ASTM D 5511 which is a standard
test method for determining anaerobic biodegradation of plastic
materials under high-solids anaerobic digestion conditions.
The latest test results under the ASTM D 5511 conditions show that
ENSO bottles will biodegrade in 250 days.
ENSO bottles with the ENSO additive are
biodegradable in anaerobic environments. The customary
disposal method of plastic bottles being either recycled or landfill
we feel the most applicable test methods would be for anaerobic
(landfill) environments. ENSO bottles are not designed to
biodegrade in the timeframe required for professional composting
Plastics which are engineered to biodegrade in
professional composting facilities are much weaker and do not
provide the barrier properties that would be desirable for the
ENSO bottles are tested under the scrutiny of the
ASTM D 5511 which is a standard test method for determining
anaerobic biodegradation of plastic materials under high-solids
anaerobic digestion conditions. The latest test results under
the ASTM D 5511 conditions show that ENSO bottles will biodegrade in
1 to 10 years.
The ASTM D 5511 tests were performed by Dr. Bill
Ullmann at Northeast Laboratories, Inc. Dr. Ullmann has over
40 years experience in testing and studying microbes.
Northeast Laboratories, Inc is accredited by the FDA, EPA and the
Department of Defense and is also ISO certified.
These are documents that cover technical aspects
of the ENSO additive and the chemical handling and safety of the
materials. ENSO can provide you with these documents for the ENSO
Yes, all additive components contained in the ENSO
additive are covered under FDA CFR title 21Generally Recognized As
Safe (GRAS). In addition, Keller and Heckman a large FDA
verification firm has validated the ENSO additive to meet all the
FDA requirements and have provided a short letter to confirm the
verification. ENSO Bottles can provide this letter upon request.
A basic IR spec scan will provide the data to
validate that the ENSO additive is truly in the PET bottle.
Also, the bottles that have the ENSO additive will have a slight
frostiness on the neck and base of the bottle once blown. The
oriented areas (the body of the bottle) will remain clear.
Keller and Heckman is a large FDA approval firm
which oversees the ENSO additive. They have validated that
there are no health issues with the ENSO additive and that the ENSO
complies with FDA regulations for food contact. Migration
(extended leaching) testing has been performed on ENSO bottles and
verifies that there is no migration.
Currently there are no recognized standard
certification programs for recyclability. ENSO bottles have
performed various ASTM test methods for verifying the physical
properties are the same for recycled ENSO bottles as compared to
standard PET bottles. These test results show no change to the
physical properties of ENSO bottles as found with standard PET.
In addition, ENSO Bottles believes it is important
to engage recyclers to give them the opportunity to handle and test
ENSO bottles. We have provided a number of independent
recyclers with samples of ENSO bottles which have been subjected to
their various in-house testing methods. All recyclers have
indicated that they do not notice any change to the PET physical
ENSO Bottles continues to work with recyclers and
industry organizations to inform the industry about the technology
and to support solutions which benefit the recycling industry as a
The following tests have been performed on ENSO
bottles to verify recyclability. These are standard tests used
to determine the quality of the PET material. These tests are
suggested as part of the American Post-consumer Recycling Critical
- Haze and Transmission via ASTM D 1003Bu>
- Intrinsic Viscosity via ASTM D 4603
- Acetaldehyde via ASTM F 2013
- Fluorescence Visual
Visual Black Specks and Gels
Burst tests are currently under way to validate
ENSO bottles with the ENSO will maintain the same pressure
requirements of standard PET. We have no reason to expect a
loss of strength or other physical properties of PET when using ENSO