Inc. (TRI) is an independent, third party, geosynthetics
firm providing geosynthetics testing and research services
to the international community. TRI is unaffiliated with any
manufacturer or engineering firm, and thus provides
non-competitive services to regulators, manufacturer,
engineering firms, contractors and installers.
TRI provides laboratory conformance/verification testing as
well as performance related studies. In addition to routine
index testing in accordance with ASTM, ISO, BS, DIN and GRI
test methods, TRI also provides standardized interface
friction, permeability, creep and stress-rupture,
transmissivity, gradient ratio, UV-resistance, chemical
resistance, and accelerated time-temperature creep and
stress rupture testing.