Learning Outcomes

Learning Outcomes for the ICTQual Certified Source Test Individual (CSTI):

Fundamentals of Emissions, Sampling Theory, and Regulatory Framework

• Describe and differentiate major pollutant types and emission sources commonly encountered in stack/source testing.
• Explain fundamental gas laws and stack gas behavior and apply them to sampling and correction procedures.
• Interpret relevant international and national regulatory drivers, permit conditions, and compliance thresholds that govern source testing.
• Identify and justify appropriate emission units, concentration-to-mass conversions, and standard reference conditions used in reports.
• Explain sampling biases and error sources specific to stack/source testing and list strategies to minimize them.
• Select appropriate sampling locations and sampling points based on stack geometry, flow profile, and applicable standards.
• Apply chain-of-custody, documentation, and traceability principles required for defensible test results.
• Recognize ethical and professional responsibilities, including obligations to regulators, clients, and third-party reviewers.

Field Instrumentation, Calibration, and Flow Measurement Techniques

• List common field instruments used for gas and particulate measurement and state primary performance characteristics to evaluate before use.
• Perform and document zero/span checks, multi-point calibrations, and leak checks for portable gas analyzers and sample pumps.
• Demonstrate procedures for instrument selection, pre-field verification, and on-site functional checks to ensure data integrity.
• Explain flow measurement principles for stacks (e.g., pitot, ultrasonic, thermal, and orifice) and identify method-specific limitations.
• Design and execute representative velocity traverses and area-weighted sampling strategies consistent with standards.
• Identify causes of instrument drift and implement in-field corrective actions and calibration frequency planning.
• Implement data-logging, time-synchronization, and backup strategies for continuous and discrete measurements.
• Evaluate field QA records and calibration logs to confirm instrument readiness and compliance before testing.

Isokinetic Particulate Sampling, Gas Sampling Methods, and Field Practice

• Explain isokinetic sampling theory and calculate isokinetic probe velocities and isokinetic ratios for particulate tests.
• Assemble and verify correct particulate sampling train components, probe geometry, and nozzle selection for target particle size ranges.
• Conduct probe placement, traverse planning, and sample point selection to achieve representative particulate collection.
• Demonstrate proper handling, preservation, and transport of samples to prevent contamination or losses.
• Perform gas sampling (extractive and dilution) procedures, including appropriate filter/media selection and sample conditioning.
• Identify and mitigate field safety hazards related to probes, boilers, ducts, and confined spaces during sampling operations.
• Execute field troubleshooting for common sampling problems (plugging, condensation, instrument response lag) and document corrective actions.
• Complete standard field forms, sampling logs, and chain-of-custody documentation with accurate time-stamping and annotations.

Calculations, Data Reduction, Uncertainty Analysis, and QA/QC

• Convert raw instrument readings into standardized concentrations and mass emissions using correct formulas and reference conditions.
• Apply isokinetic and stack gas corrections, moisture corrections, and molecular weight adjustments where applicable.
• Perform step-by-step mass emissions calculations, including flow integration and area-weighting for traverse data.
• Calculate measurement uncertainty using accepted propagation methods and produce clear uncertainty budgets for reported values.
• Interpret QA/QC checks (blanks, spikes, calibration gas recoveries) and decide when data meet acceptance criteria or require rework.
• Identify and quantify sources of systematic and random error and document their impact on final results.
• Use spreadsheet or data-analysis templates to automate repetitive calculations while maintaining traceable audit trails.
• Prepare QA summaries and deviation reports that clearly justify data exclusions, corrections, or conservative assumptions.

Report Writing, Regulatory Forensics, Practical Assessment, and Safety

• Produce complete, structured test reports that include objective, scope, methods, instrument logs, calculations, QA/QC, and conclusions.
• Present results with clear tables, figures, and annotated calculations that support regulatory submittals and stakeholder review.
• Prepare an evidence-based response to routine regulator challenges, including clear documentation of methods, calibrations, and uncertainty.
• Conduct practical field assessments demonstrating correct traverse technique, instrument calibration, and sample handling under time constraints.
• Apply incident prevention practices and confined-space entry protocols; demonstrate correct use of PPE and hazard assessment procedures.
• Draft corrective-action plans and non-conformance reports for issues found during testing or audits and assign responsibilities.
• Communicate technical findings effectively to non-technical stakeholders and prepare executive summaries highlighting compliance implications.
• Maintain an audit-ready portfolio with original field records, calibration certificates, chain-of-custody forms, and a clear index for rapid reviewer access.