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  1. Test Tube: Working, Types, and Uses - Master Chemistry

  2. Test Tube: Types Uses, and Importance • Microbe Online

  3. Test tube - Wikipedia

  4. Test Tube | Definition, Purpose & Uses - Lesson | Study.com

  5. Test Tubes: Types, Uses, and Laboratory Applications

  6. Laboratory Test Tube – Definition, Types, Uses

  7. Test Tube – A Comprehensive Guide for Everyone - labwale.co

  8. Test Tubes: Types, Use, Disadvantages - Science Info

  9. Test Tubes Selection Guide: Types, Features, Applications

  10. The Importance of Test Tubes in a Medical Laboratory: Types, …