Unit II - Laboratory Quality Control Techniques
(February 16 - March 15, 2026)

For each unit, you will need to do the following:

  1. Review Unit Activity Sheet

  2. View Presentations and Videos from the Unit Activity Sheet

  3. Complete Readings

  4. Complete Discussions on Google Groups

  5. Complete and E-mail homework (s)to outreach@otsc.tamu.edu.  Put Homework # _ in subject line.

Learning Objectives
Explain the use of quality control procedures in laboratory with an emphasis on ISO accreditation; Understand the importance of traceability, proficiency testing and uncertainty in producing reliable and defensible results; Understand the use of statistical process control within a laboratory quality system

Unit II Activity Sheet
(Links to all presentations, readings, and activities for Unit II)

Assignments


  1. Google Groups: Graded Discussion # 2: Proficiency Testing -Due by Midnight on Monday, February 23, 2026(See below for more information - 5 pts)

    Review the following 2018 Round 1 and Round 2 reports for Total and B1 Aflatoxin Results respectively from the OTSC – TAMU Agrilife Research Aflatoxin Proficiency Testing and Control Program  To view the reports, go to PT website - pt.tamu.edu and click on View Proficiency Test Reports
    Lab Number-101 ; Password –password

    Compare the Round 1 and Round 2 results for Total and B1 Aflatoxin respectively and address the following:

    1. Presence of Outliers
    2. # of Labs that had satisfactory results
    3. What should a lab do if their results is not satisfactory?

    Why should a laboratory participate in a Proficiency Testing Program? (5 pts)

    Submit in course Google Group under Graded Discussion #3 Thread;
    Access google group @Laboratory Quality Systems – Spring 2026 - Google Groups
    E-mail: lqs_2026_spring@lists.tamu.edu

  1. Google Groups: Graded Discussion # 3 Due by Midnight on Monday, March 16, 2026 (See below for more information - 5 pts)
    All laboratory results are need to account for a level of uncertainty.  What types of information should accompany laboratory results to account for this uncertainity?(5 pts)

    Submit in course Google Group under Graded Discussion #3 Thread;
    Access google group @Laboratory Quality Systems – Spring 2026 - Google Groups
    E-mail: lqs_2026_spring@lists.tamu.edu

  2. Homework #2- Statistical Process Control - Due by Midnight on Monday, February 23, 2026(10 pts)
    E-mail homework to outreach@otsc.tamu.edu.  Put Homework# 2 in subject line


  3. Homework #3 – UncertaintyDue by Midnight on Monday, March 2, 2026(10 pts)
    E-mail homework to outreach@otsc.tamu.edu.  Put Homework# 3 in subject line.|
  4. Homework #4  – Non-conforming work Due by Midnight on Monday, March 16, 2026(10 pts)

    E-mail homework to outreach@otsc.tamu.edu.  Put Homework# 4 in subject line.