Fiber Analysis Lab (10587) In Stock Now

Burn Test with Fiber Samples. Comes with instructions, 6 fabric samples, burn trays, 2 alcohol burners, tweezers, and ethyl alcohol.

Fiber evidence can be found at crime scenes in a number of different ways. In personal contact between the clothing of a suspect and a victim, cross-transfers may occur. In a break in, fibers can become fixed to window screens, or broken glass. In an auto accident, fibers, threads, or even pieces of clothing may adhere to parts of a vehicle. Fiber analysis does not follow any set procedure. Microscopic examination of both longitudinal and cross sectional samples is generally used. Additional tests such as burning can determine the identity of a fiber. Natural fibers tend to look like hair and will often have rough external surfaces. Plant fibers, such as cotton, may be more ribbon shaped and may contain twists at irregular patterns. Synthetic fibers (man made) tend to be smooth and uniform, and some may have long extrusion lines on the outer layer. In this investigation, you will identify the fiber on your shirt by doing a microscopic analysis and perform a burn analysis on known fibers.