Illustrated Guide to Home Forensic Science Experiments

Chapter 13. Lab II-6 Physical and Chemical Tests of Fibers

Equipment and Materials

You’ll need the following items to complete this lab session. (The standard kit for this book, available from http://www.thehomescientist.com, includes the items listed in the first group.)

Materials from Kit

• Goggles

• Beaker, 250 mL

• Cylinder, graduated, 100 mL

• Coverslips

• Forceps

• Hydrochloric acid, 6 M

• Magnifier

• Pipettes

• Slides, deep-cavity

• Slides, flat

• Sodium dithionite

• Spatula

• Stirring rod

• Test tubes

• Test tube clamp

• TIS #1 dye

• TIS #3A dye

• Specimens: Fabrics A, B, C, D, and E

• Specimen: TFI Multifiber Fabric #43

Materials you Provide

• Gloves

• Ammonia, household (clear, non-sudsy)

• Bleach, chlorine laundry

• Burner, butane lighter, or other flame source

• Dishwashing detergent (Dawn or similar)

• Microscope ...