ASTM F472-92(1998)
(Terminology)Standard Terminology for Geometry of Alpine Skis
Standard Terminology for Geometry of Alpine Skis
SCOPE
1.1 These definitions cover the terms required to describe the geometry of Alpine skis and do not cover special purpose skis.
1.2 The terms are presented in a sequence considered to be the most logical, with definitions presented later calling upon those presented earlier.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F472–92 (Reapproved 1998)
Standard Terminology for
Geometry of Alpine Skis
This standard is issued under the fixed designation F 472; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 These definitions cover the terms required to describe
the geometry of Alpine skis and do not cover special purpose
skis.
1.2 The terms are presented in a sequence considered to be
the most logical, with definitions presented later calling upon
those presented earlier.
2. Significance and Use
2.1 A standard set of definitions is needed to allow manu-
facturers, consumers, retailers, and scientists to use a common
language in describing Alpine skis.
3. Definitions (Refer to Figs. 1 and 2)
ski tail, T—the extreme rear edge of the ski.
ski tip, S—the extreme forward point or edge of the ski.
ski size —
developed length, L —bottom contour length as measured
N
FIG. 1 Alpine Ski Locations
from the ski tip to the ski tail, commonly called the material
length.
chord length, L —straight line distance measured between contact length, l —the difference between the projected
TS
C
the ski tail and ski tip with the ski pressed against a plane
length, L and the sum of l plus l or l =L −( l + l ).
P T S C P T S
surface.
tail height, h —the height of the underside of the tail from a
T
plane surface with the center of the ski body pressed against
NOTE 1—Eithermethodatthemanufacturer’sdiscretionmaybeusedto
that surface.
indicate nominal ski length or ski size when rounded to common
tip height, h —the height of the underside of the tip from a
increment.
S
plane surface with the center of the ski body pressed against
projected length, L —length of the projection of the ski,
P
that surface.
measured between the ski tip and the ski tail parallel to the
thickness,t—thickness,measuredperpendiculartotherunning
ski body pressed against a plane surface.
surface. X indicates the location of thickness measurement
A
tail turn-up length, l —the projected length of the tail
T
from the tail of the ski.
turn-up,measuredfromtheskitailtothecontactpointwhere
width, b—total distance measured perpendicular to the center
a 0.5-mm feeler gage intersects the running surface with the
line on the running surface. X indicates the location of ski
b
ski body pressed against a plane surface.
width from the tail of the ski.
shovel length,l —the projected length of the forward turn-up,
S
measured from the tip to the contact point where a 0.5-mm
feeler gage intersects the running surface with the ski body
pressed against a plane surface.
This Terminology is under the jurisdiction ofASTM Committee F-27 on Snow
Skiing and is the direct responsibility of Subcommittee F27.30 onAlpine and Cross
Country Ski Dimensions and Characteristics.
Current edition approved Jan. 15, 1992. Published April 1992. Originally
published as F 472 – 76. Last previous edition F 472 – 86. FIG. 2 Alpine Ski
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.