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Pyramid
of Plastic
The adove pyramid
of plastics/polymer is a ranking of plastics according to their hazardous
characteristics PVC, the least clean plastic, is at the pyramid base. Naturally
biobased plastic itself has limited characteristics and can not be used in
many applications without certain chemicals added. When certain chemicals
are added, the biobased plastics also lose its natural cleanliness. In practice,
this leaves polyethylene (PE) and polypropylene (PP) to be the cleanest plastics
for general applications. |
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There are certain information
the consumer should know which could not be expres here. For more information,
you can search from the following web sites:
:: www.atsdr.cdc.gov/tfacts20.html
:: www.eca-usa.net
:: www.archive.greenpage.org/~toxics/pvcdatabase/bad.html
:: www.evcm.org/hp.com |
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With the ISO 9002 quality
system certified by FMRC, every single SYLER pipe will meet the quality of
its standards.
Moreover, SYLER pipe passes
all tests under standard of BS 1387/85 class M. This assures you that the
thickness of the steel pipe and its thick zinc coating will result in the
long product lifetime.
In connection with the
cleanliness, SYLER pipe passes all the tests under standard of BS6920 Part
II, one of the most stringent standards on cleanliness of water pipe, conducted
by Nutek System, one of the world's leading test labs. And as from the testing
report, it shows that:
::
SYLER pipe passes all the tests on water quality: taste, odor, color change.
::
The extraction of 13 different metals (after containing water for 2 months)
is 20-500 times lower than the standard.
::
Growth of aquatic micro - organisms (after containing water for 2 months)
is 13 times lower than the standard. |
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+Syler
pipe had been tested under the standard of BS 6920 Part II by the Department
of Science Service
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