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Standard Operating Procedure |
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| Annexure
- I : Sortation Characteristics of Different grades of
Bottles/Jars |
| Sortation Category |
Comments |
Neck features |
Base features |
| PET |
Bottles/Jars can hold carbonated or non
carbonated liquids |
The inside of the neck bore will be smooth
with no internal grooves |
The base of the bottle may be flat, petaloid
or champagne in design but in every case will have a small
white dot(injection point) in the centre of the base |
| Bottles/Jars have a shiny
surface finish |
The carbonated PET bottles
have vertical slots through threads |
|
| Bottles/Jars are transparent |
|
|
| PET Bottles/Jars do not
have handles formed as part of the bottle |
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|
| PVC |
Bottles are non carbonated |
Inside of neck bore will not be smooth
& a groove corresponding to the thread on the outside
of the neck will be felt |
All PVC bottles have an evidence of a pinch
line on the bottle base |
| Bottles/Jars tend to
have a duller surface finish when compared to PET bottles |
|
Some bottles may have
a circular ring in the centre of the base as well as the
pinch line |
| Bottles/Jars may have handles formed within the bottle shape |
|
This circular ring is
much larger & less defined than the smaller dot on
PET bottles |
| PP |
Bottles are non carbonated |
Inside of neck bore will not be smooth
& a groove corresponding to the thread on the outside
of the neck will be felt |
All PP bottles have an evidence of a pinch
line on the bottle base |
| PP bottles/Jars do not
have handles formed as part of the bottle |
|
|
| HDPE |
Bottles are used in non carbonated applications
typically household chemicals |
Inside of neck bore will not be smooth
& a groove corresponding to the thread on the outside
of the neck will be felt |
All HDPE bottles have an evidence of a
pinch line on the bottle base |
| Bottles may have handles
formed within the bottle shape |
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| Bottles are opaque |
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