Preparing sample bags before entering the field has proven to be the best way to avoid
collection errors. Keeping it simple avoids mistakes that can, in the worst case, require
an additional field trip. Having enough sample bags pre numbered and organized prior to
collection avoids duplicate and skipped sample numbers. Writing a number on a map or
marking the sample number on a GPS unit is far easier than writing on a bag while
checking the map for a arbitrary sample number. Let the collector assign the bag number
to the collection point. This provides the collector the freedom to collect in the most
efficient manner and avoid mistakes.
collection errors. Keeping it simple avoids mistakes that can, in the worst case, require
an additional field trip. Having enough sample bags pre numbered and organized prior to
collection avoids duplicate and skipped sample numbers. Writing a number on a map or
marking the sample number on a GPS unit is far easier than writing on a bag while
checking the map for a arbitrary sample number. Let the collector assign the bag number
to the collection point. This provides the collector the freedom to collect in the most
efficient manner and avoid mistakes.
1. Use Ziploc or other resealable plastic bags.
2. Using a Sharpie permanent
marker, write the number on
the upper right hand corner of
both sides of the bag.
marker, write the number on
the upper right hand corner of
both sides of the bag.
3. Number 10 bags sequentially
laying them out in order and
allowing time for the ink to dry.
laying them out in order and
allowing time for the ink to dry.
4. Roll the ten bags into a tight bundle
with the lowest number showing.
with the lowest number showing.
5. Use scotch tape to secure the bundle.
Fold back a short piece of tape on to
itself making an easy pull tab at the end.
Fold back a short piece of tape on to
itself making an easy pull tab at the end.
6. Secure five sequential bundles into
groups of fifty listing the range of sample
numbers on the scotch tape holding them
together.
groups of fifty listing the range of sample
numbers on the scotch tape holding them
together.
Thousands of sample bags can be prepared and organized in this manner.
1. Open each group of bags as needed securing the ten lose bags in a clip board.
2. As each sample is collected check each bag number and record it on the field map.
3. Many GPS systems will provide a sequential numbering "mark" function that can be used to
record the bag number.
2. As each sample is collected check each bag number and record it on the field map.
3. Many GPS systems will provide a sequential numbering "mark" function that can be used to
record the bag number.
Sample Bags
Organizing Bags
In the Field
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