For example, the first sample from an activity for 1982 is number 82-1. A station log should be kept with
a record of samples submitted to the designated testing laboratory.
PART E - VERIFYING SAMPLE INFORMATION IS COMPLETE
Sample Numbers. A serial number should be assigned to each sample and entered on the sample tag.
This number is made up of the last two digits of the calendar year and the sample number for that year. For
example, the first sample from an activity for 1982 is number 82-1. A station log should be kept with a
record of samples submitted to the designated testing laboratory.
Laboratory Log. A laboratory log should be maintained as a permanent record of samples received for
testing. The following information should be entered on the sample tag.
Date of receipt.
Type of product.
Unit sample number.
Source of the sample.
Quantity the sample represents.
Date of completion of tests.
PART F - SAFETY PRECAUTIONS FOR HANDLING SAMPLES
A sampling and gaging SOP should be developed for your laboratory according to the specific mission
assigned. The following safety precautions should be known/available to all assigned laboratory personnel
Before a tank is gaged, static electricity must be grounded by touching the bare hand to the tank shell (or
When possible, tanks should be gaged from the side of the gaging hatch with the wind at your back, and
caution should be exercised against breathing vapor from the contents of the tank.
Tanks should never be gaged during an electrical storm.
When gaging must be done from the roof, personnel should stand at the same location on the roof for
both opening and closing gages.
Innage gaging should be to the nearest 1/8 inch. Outage gaging is done to the nearest 1/4 inch.
Gaging should be repeated until two gagings are identical.
The tape should touch the rim of the gaging hatch at all times to ground static electricity.
The tape should be wiped clean and dry after each use.
After the product has been discharged into a tank, it should stand at least 30 minutes to eliminate static
A product temperature reading for volume correction should be taken immediately before or after
volumes of 3,500 gallons or over are received or issued.
Use the same tape and bob for opening/closing gages.
All laboratory personnel, in addition to being familiar with sampling and gaging specific safety measures,
should also be familiar with the general safety precautions outlined in the laboratory fire prevention and
PART G - ENVIRONMENTAL CONSIDERATIONS
Environmental considerations should always be taken into account, and especially when performing
sampling and gaging operations. The laboratory fire prevention and safety SOP should be used to the fullest
extent possible. Some of the considerations that will need to be addressed in relation to sampling and
gaging SOP are as follows:
Hazardous Materials Handling.
Spill Containment and Cleanup.