InstroTek
33
If you encounter large samples with extremely rough texture, you may double
bag the sample to avoid repetitive punctures. Use the following procedure to
double bag the sample.
Procedure for Using Two Bags
1. Use two large bags.
2. Cut one of the large bags to a length of
14.5 inches
1/2 inch.
3. Use the CoreLok Bulk Specific Gravity data collection table (
pg. 17).
4. Weigh both bags and record the weight
5. Place the sample into the cut bag.
6. Place the sample and the cut bag into the uncut large bag inside the
chamber. Make sure the sample is completely inside the cut bag.
7. Be sure both bags are as flat or smooth as possible; the inner bag should not
be bunched or crumpled up.
8. When sealing make sure the inner cut bag is below the seal bar so that only
the outer bag is being sealed.
9. Use the CoreLok sealing steps to seal the sample. Make sure the total weight
of both bags is entered in the bag weight column of the data collection
table and use the table above for bag corrections. You may use the
GravitySuite
TM
PC software and the CoreGravity
TM
option to automatically
calculate the bulk specific gravity. Simply click on the double bag method
option and enter your weights for automatic calculations of the results.
Note: The cut inner bag can be reused.
