Description: Theory and principles of sampling.

Terminal Competency:

Summarize the concepts of sampling theory.

Enabling Competencies:

1. Explain decision units.

2. Incorporate sample descriptors into daily activities.

3. Explain representivity.

4. Describe evidentiary integrity.

5. Give examples of practices to maintain analyte integrity.

6. List components of Sample Quality Criteria (SQC).

7. List components of Global Estimation Errors (GEE).

8. Discuss the use of laboratory sampling terms.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.

Description: Physical characteristics of laboratory sample.

Terminal Competency:

Describe the physical characteristics of laboratory samples that can introduce error into sample manipulation processes.

Enabling Competencies:

1. Distinguish between infinite and finite element materials.

2. List the physical states of a laboratory sample.

3. Define heterogeneity as the term applies to a laboratory sample.

4. Differentiate between compositional heterogeneity and distributional heterogeneity.

5. Relate the impact of particle size on sampling errors.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.

Description:  Imprecision and bias that cause the concentration or characteristic of the test portion to deviate from the true concentration or characteristic of the decision unit.

Terminal Competency:

Identify sources of error in laboratory sampling.

Enabling Competencies:

1.  Describe the types of errors in sampling.

2. Give examples of errors from non-selection processes.

3. Give examples of systematic errors from selection processes.

4. Give examples of random errors from selection processes.

5. Give examples of gross errors.

6. Describe the relationship of error to mass.

7. Describe the relationship of error to increments.

8. Describe the relationship of error to sample correctness.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.

Description: Manipulation of a sample usually performed before a selection process.

Terminal Competency:

Describe the purpose of non-selection processes in laboratory sampling.

Enabling Competencies:

1. Describe non-selection processes.

2. Describe comminution/particle size reduction techniques.

3. Explain the effects of mixing techniques.

4. Describe techniques used to remove extraneous material.

5. Describe how non-selection processes influence representivity.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.

Description: The act of selecting a smaller mass or volume of material from a larger mass or volume.

Terminal Competency:

Describe the purpose of selection processes in laboratory sampling.

Enabling Competencies:

1. Differentiate mass reduction and splitting.

2. Explain the critical factors to control random error in a selection process.

3. Describe splitting equipment used in selecting a representative test portion.

4. Contrast one- dimensional and two-dimensional sampling.

5. Explain characteristics of sampling tools.

6. Describe the effect of selection process on representivity.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.

Description:  Policies and procedures used to assure the representativeness of the test portion.

Terminal Competency:

Explain how Quality Assurance/Quality Control policies and procedures can be applied to achieve sample representativeness.

Enabling Competencies:

1. Discuss the importance of validating laboratory sampling processes.

2. Discuss the importance of verifying laboratory sampling processes.

3. Explain the importance of quality control for laboratory sampling processes.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.

Description:  A set of plans used for laboratory sampling operations.

Terminal Competency:

Articulate laboratory procedures related to lab sampling.

Enabling Competencies:

1. Identify standard operation procedures (SOPs) used in laboratory sampling.

2. Recognize the sampling objective.

3. Recognize the workflow associated with laboratory sampling.

4. Recognize laboratory policy for sample retention.

5. Apply safety procedures in laboratory sampling.

To see a set of behavioral anchors, which provide further detail about the enabling competencies and can be used for assessment against the enabling competencies, contact IFPTI.