Conformity of Physical Characteristics of Imported Tires with Government
Standards: A Case Study
N.T. Ratrout.1,
The Journal of Engineering Research 1 (2004) 01-06
Abstract:
The Saudi Arabian Standards Organization, SASO, has established a set of
tests that all passenger car tires have to pass in order to be allowed into the
Country. These tests are: visual inspection, dimension measurement, bead
unseating, tensile strength and elongation, aging, endurance, and high speed
performance tests. This paper describes the application of the first five tests
on eight different brands of tires that are taken to represent the categories
of "frequently failed" and "infrequently failed" tires in
the country. The results showed that the dimensions of almost all the tested
tires were somewhat different from those documented in the SASO standards. On
the other hand, all the tested tires passed the bead unseating and strength
tests. All tires in the "frequently failed" category failed the
tensile strength test. In contrast, all tires from the "infrequently
failed" category passed this test. The average values of the test for
these two tire categories were statistically different at a 95% confidence
level.
Key words: SASO
tests, tire tests, bead unseating test, tires in