INTRODUCTION
As a Petroleum Laboratory NCO, you play an important role in the proper handling of petroleum samples, to
include the receipt and the testing of those, as well as the forwarding of test results. You are the critical link
between the sending unit and the soldier who will test the sample. In the bigger picture of Army logistics, you
play a very significant role.
PART A - VERIFY THAT TESTING IS BEING CONDUCTED IAW APPLICABLE
ASTM TEST METHOD
Repeatability is the allowable difference between two results on the same sample by the same operator using
the same equipment. Reproducibility is the allowable difference between two results on the same sample by
different operators in different locations. Methods of correlation testing include:
Sending identical samples to two or more laboratories. These laboratories use the same apparatus in
performing the tests.
Having two or more technicians perform the tests. These technicians perform tests on identical samples
using the same apparatus under controlled conditions.
Single technician perform duplicate tests. This technician performs duplicate tests on identical material
using the same apparatus under controlled conditions.
PART B - REVIEW COMPLETED DA FORM 2077
Check to make sure information from the sample tag has been transferred to DA Form 2077.
Product Nomenclature.
Specification No.
Sample Submitted By.
Amount Product Sample Represents.
Manufacturer of Supplier of Product.
Source of Sample.
Sample taken by.
NSN.
Date Sample Taken.
Once this information has been verified on DA Form 2077, the senior technician then enters the following
information:
Sample No.
Lab Report No.
Type of Test(s) to be Performed According to Specification Requirements.
Date Sample Received.
Date Test Started.
Date Test Completed.
As the senior laboratory technician, check that each sample container is tagged immediately after sampling
and review for accuracy at the required intervals. The sample tag should be filled out to the maximum
extent possible. A sample number should be assigned to the tag, and data should be recorded in the sample
log. Once reports are received from the laboratories conducting the tests, the NCO should ensure that a
comparison of the APC test results is conducted.
5-2
QM 5182
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