USTER HVI1000, Instruction Manual

Page: 198 / 238

USTER®
HVI 1000
Instruction Manual
Uster Technologies, Inc. Chapter 11
(3/08) Glossary
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Page 11-6
Sample — The cotton fiber mass to be tested. For micronaire
measurements, it must be a certain weight; for length, strength,
uniformity, and elongation measurements, it must be in the form of a
beard.
SCI — Spinning Consistency Index is a calculated value based on a
regression equation that takes into account all HVI properties and
calculates one value to be used on each sample tested.
SFI — Short Fiber Index.
Skein — 120 yards of yarn wound on a 1.5-yard diameter reel.
Skein Break (SBr) — The force, in pounds, to break a skein of yarn.
SL1% —
The percentage assigned to the first selected Span Length.
SL2% — The percentage assigned to the second selected Span Length.
Software — The instructions that make the computer hardware
perform tasks. Programs, operating systems, and applications are all
software.
Source File — Data file on floppy.
Span Length — The distance a selected percentage of fibers extend
from a clamp in which they have been caught at random along their
length.
Specific Surface — The relationship between total fiber surface area
to the total fiber volume as measured by the resistance to air flow of a
known mass of fibers confined in a fixed volume.
Specification — A set of criteria that has been established to ensure
that cotton samples are acceptable.
Spinning Potential — Based on test results, the anticipated quality of
yarn after it is spun.
Standard Values — Values assigned to the calibration cotton
samples of fiber.