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ISO 10364-2015 pdf free download
ISO 10364-2015 pdf free download.Structural adhesives Determination of the pot life (working life) of multicomponent adhesives
Adhésifs structuraux — Determination de la durée de vie en pot (délal d’utilisa tion) d’adhésifs m ulticomposants.
operating at a speed of (600 ± 100) min’ for (60 ± 10) s. Take care that the areas in the angle between the side and bottom of the cartridge are well mixed and avoid mixing-in of air.
As an alternative to manually metering and mixing the individual components, the adhesive can be dispensed directly into the measuring system from a two-part cartridge through a static mixer following the procedure prescribed by the adhesive supplier. Avoid entrapping air during the filling process by keeping the orifice of the static mixer always below the surface level of the adhesive.
NOTE 2 The preferred amount of mixture is 200 g; however, other quantities can also be used. Alternatively, it is possible to mix the components outside the cartridge and transfer the mixed material into a cartridge.
As quickly as is practical, remove the stirrer from the cartridge, insert a plunger, and press it down to the adhesive’s level allowing air to escape, remove the seal from the threaded end fitting of the cartridge, screw on the extrusion nozzle (5.fl), and fix the cartridge in the extrusion gun (5.12).
As quickly as is practical, establish the agreed upon extrusion pressure.
Extrude rapidly, through the nozzle, into a weighed aluminium-foil dish (5J4), about 50 ml of adhesive in order to remove any air trapped and potentially present unmixed material that can be retained in the end fitting during stirring.
Start the stopwatch (5.6) and extrude the freshly mixed adhesive at the specified pressure for the specified length of time. Reweigh the dish and record the amount of adhesive extruded.
Repeat this procedure at appropriate intervals until the quantity of adhesive extruded under the specified conditions has fallen to an agreed level.
The time that has elapsed up to the moment when this occurs is the pot life.
6.4 Method 3: Determination from the reaction temperature
Before the measurement starts, the critical temperature (e.g. 40 °C) shall be defined, taking into account the heat generated by the chemical reaction between the components and the processing behaviour of the adhesive system under test. Then, bring the components of the adhesive to (23 ± 1) °C. The time necessary to do this will depend on the type and mass of adhesive concerned and shall be determined for each adhesive before starting the test. Weigh the individual components into a beaker (5.2) in the proportions specified for the particular adhesive under test.
NOTE For adhesives with pot lives of more than 10 mm, the preferred amount of mixture is 100 g. For adhesives with pot lives less than 10 mm, the preferred amount of mixture is 20g. However, other quantities can also be used.
Start the stopwatch (5.6) and mix the test sample with the square (not rounded) end of the spatula (5.3) [or (60 ± 10) s. Take care that the areas in the angle between the side and bottom of the beaker are well mixed.ISO 10364-2015 pdf free download.
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