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ASTM E 1486M Document Information:
Title
Standard Test Method for Determining Floor Tolerances Using Waviness, Wheel Path and Levelness Criteria (Metric)
ASTM International
Publication Date:
Sep 10, 1998
Scope:
This test method covers data collection and analysis procedures to
determine surface flatness and
levelness by calculating waviness indices for survey lines and
surfaces, elevation differences of
defined wheel paths, and levelness indices using SI units.
NOTE 1 - This test method is the companion to inch-pound Test Method E
1486.
NOTE 2 - This test method was not developed for, and does not apply to
clay or concrete paver
units.
The purpose of this test method is to provide the user with floor
tolerance estimates as follows:
Local survey line waviness and overall surface waviness indices for
floors based on deviations from
the midpoints of imaginary chords as they are moved along a floor
elevation profile survey line.
End points of the chords are always in contact with the surface. The
imaginary chords cut through
any points in the concrete surface higher than the chords.
Defined wheel path criteria based on transverse and longitudinal
elevation differences, change in
elevation difference, and root mean square (RMS) elevation difference.
Levelness criteria for surfaces characterized by either of the
following methods: the conformance
of elevation data to the test section elevation data mean; or by the
conformance of the RMS slope
of each survey line to a specified slope for each survey line.
The averages used throughout these calculations are the root mean
squares, RMS (that is, the
quadratic means). This test method gives equal importance to humps and
dips, measured up (+) and
down (−), respectively, from the imaginary chords.
Appendix X1 is a commentary on this test method. Appendix X2 provides
a computer program for
waviness index calculations based on this test method.
This standard does not purport to address all of the safety concerns,
if any, associated with its
use. It is the responsibility of the user of this standard to
establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
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