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Course Outline no. 230 .
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Climatic Test Techniques

Course No. 230

(Course Outline shown below.)

For Whom Intended  Environmental Engineering Specialists (as mandated by MIL-STD-810), environmental test laboratory engineers and technicians, specification writers, equipment designers, and quality and reliability specialists.

Brief Course Description  An introduction to climatic testing with an overview of field test measurement and analysis. Test methods and conditions of commercial and military test specifications and standards are discussed. Primary emphasis is on understanding the physics of each environment, and available measurement and control techniques. The course also covers selection and use of chambers for thermal, vacuum, corrosion and dust-particle testing. It provides an overview of compressors, pumps, blowers, and heating systems. There will be a discussion of liquid nitrogen (LN₂) cooling systems and refrigeration equipment.

The course also provides an introduction to the use of climatic testing procedures for Accelerated Life Testing (HALT), Reliability Testing, HASS and Environmental Stress Screening (ESS). A class project is included to provide supervised practice in using the course material.

The course is presented as a series of highly-interactive lecture/discussion sessions. Problems for individual and group solution are interspersed throughout the course to act as training aids and to evaluate class progress. Special-interest discussions are encouraged outside of the regular course sessions.

Certificate Programs  This course is required for TTi's Environmental Engineering Specialist (EES) and Climatic Test Specialist (CTS) Certificate programs. It is an elective for any other TTi specialist certificate program.

Prerequisites  There are no definite prerequisites. However, this course is aimed toward individuals involved in related technical fields.

Text  Each student will receive a course workbook, including most of the viewgraphs used in the course presentation.

Course Hours, Certificate and CEUs  Open courses meet seven hours per day. Upcoming presentation dates can be found on our current open course schedule. Class hours/days for on-site courses can vary from 14-35 hours over 2-5 days as requested by our clients. Upon successful course completion, each participant receives a certificate of completion and one Continuing Education Unit (CEU) for every ten class hours.

Course Outline No. 230

• Introduction to Climatic Testing
• The Climatic Environments
  • Temperature
    • Definitions and Terminology
    • Introduction to Heat Transfer
    • Temperature Testing
  • Pressure and Vacuum
  • Humidity
  • Solar Radiation
  • Salt Fog (Corrosion)
  • Rain and Ice
  • Fungus
  • Sand and Dust
  • Immersion & Leak Tests
• Test Facilities
  • Temperature Chambers
    • Description and Types
    • Operating Principles
    • Selection and Sizing
    • Evaluation and Certification of Performance
  • Vacuum (Altitude) Chambers
    • Description and Types
    • Vacuum Pumps
    • Instrumentation and Controls
    • Seals & Feedthroughs
  • Humidity Chambers
    • Generating and Controlling Humidity
    • Special Features of Humidity Chambers
  • Solar Radiation Test Facilities
  • Salt Fog (Corrosion) Chambers
    • Chamber Construction and Controls
  • Rain and Ice Test Facilities
  • Fungus Test Facilities
  • Sand and Dust Test Chambers
    • Blowing Dust
    • Blowing Sand
    • Temperature and Humidity Control
    • Controlling the Sand and Dust Environment
  • Immersion and Leak Test Facilities
• Combined Environments
  • Multiple Climatic Environments
  • Combining Climatic and Dynamic Environments
• Specifications, Standards and Procedures
  • Test Objectives-Simulation Standardization or Effect Replication?
  • Program or Contractual Requirements
  • Detailed Procedures
• Test Tailoring
  • What is Tailoring?
  • When and How is it Used?
  • Considerations for Tailoring
  • The Life Cycle Profile
  • Time Compression (Accelerated Testing)
• Climatics and Environmental Stress Screening (ESS)
  • Philosophy and Basis of ESS, HALT and HASS
• Summary and Conclusion
• Final Examination
• Award of certificates for successful completion

Printable (.pdf) version of course outline no. 230 ( Adobe Acrobat Reader required).

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