This instrument works on end aligned principle. The fibers are arranged in the descending order of fiber length which forms an array diagram of which various properties related to fiber length are determined. For Accurate measurement of fibre length characteristics like Effective Length & Mean Length.

Adherent Standards :
IS 233 (Part 2): 1978
ASTM: D — 1440 -96 — Array method ASTM: D — 1447-89