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Physical Property Testing |
Automotive Certification
CMTL is accredited as an independent testing laboratory by the
Standards Council of Canada to ISO 17025 and performs supplier testing for most
international automotive companies.Plastic,
metal, rubber and textile parts and assemblies are subjected to performance evaluations
according to automotive specifications. Properties such as fade resistance, thermal
stability, flammability and resistance to deformation are evaluated according to each
individual automotive specification. Our staff is experienced at interpreting automotive
test requirements and are experienced with the automotive test report format. |
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Fogging Tester
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Accelerating Weathering
CMTL has a full range of accelerated weatherometers. Textiles, paints,
inks, plastics, colorants, asphalts and coatings subjected to outdoor exposure,
photo-degradation, fading and photo-chemical reactions can be tested under controlled
laboratory conditions on a repeatable basis. Our new model Xenon-Arc weatherometers will
meet the SAE J1960 & J1885 requirements for temperature controlled irradiance. Our
open flame or Sunshine carbon arc weatherometers have an ultraviolet rich spectral output
that makes it particularly effective in accelerated weathering tests in the fields of
paints and plastics. Enclosed Carbon-Arc and QUV/Condensation weatherometer methods are
also available for test methods still requiring these light sources.
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Colour Measurement
Our Hunter Colourimeter is used to evaluate colour change after weatherometer exposure or
for comparison against your master. Colour measurements are taken according to SAE H1545
or ASTM D2244 and can be reported in CIE L*a*b* or hunter scales.Plastic & Rubber Properties
Polymer properties can be evaluated for compliance to SAE, ASTM, military,
aerospace, or automotive specifications. Mechanical properties such as tensile, tear,
flexural and compression strength, Izod impact and hardness are standard tests.
Plastics as a whole and thermoplastics in particular are
sensitive to temperature. Thermal properties can be evaluated using such test methods as
melt index, heat deflection, vicat softening, melt point and brittleness temperature.
Analytical test methods such as specific gravity, water absorption, filler content
and loss of plasticizer can be used to characterize a polymer.
Chemical resistance is very important to the end-user and can be evaluated using
environmental stress-cracking resistance or stain resistance tests. |
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