ASTM B571 Test Guide: Peel Testing for Metals
PeelGrind the chisel edge to the exact specified angle and sharpen regularly to maintain uniform shear force application.
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Grind the chisel edge to the exact specified angle and sharpen regularly to maintain uniform shear force application.
Always roll the tape onto the steel plate with a standardized mechanical roller at a uniform speed to eliminate manual…
Clean the stainless steel probe tip with reagent-grade toluene or isopropyl alcohol and a lint-free wipe before every single stroke.
Meticulously clean the stainless steel test plate with diacetone alcohol or n-heptane and a lint-free wipe before every single strip…
Meticulously document the exact failure mode split: R (Rubber Failure), RC (Rubber-Cement), CP (Cement-Primer), or M (Metal Interface).
Always adjust the cyclic frequency downward if the infrared sensor tracks a surface temperature increase exceeding 2°C over the ambient…
Always discard the first 25mm of peeling data from calculations; adhesive failure must reach steady-state equilibrium before capturing valid averages.
The active gauge area must be polished longitudinally to a mirror finish (down to 0.2-micron roughness) to eliminate circumferential machining…