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GMW14335 3rd Edition, July 1, 2016 Determining the Moisture Content of Plastic Components and Molding Compounds
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Description / Abstract: Purpose. This standard is an alternative procedure to ISO 62 or ISO 15512 to determine the moisture (water) content of plastic components and molding compounds. In case of dispute, the responsible GM Material Engineer defines which procedure to use.
Applicability. It is particularly applicable to polyamide (except polyamide 11 and 12) components, which in order to attain their optimum performance characteristics at +23 °C ± 2 °C and 50% ± 5% relative humidity (RH), must have moisture content of 2% minimum in their finished form. The absorption of water affects the physical properties of polyamide (except polyamide 11 and 12). After manufacture, components shall be conditioned by suitable means (i.e. immersion in hot water) such that the moisture content thus attained approximates to that necessary to achieve optimum properties and dimensional stability during normal service and assembly conditions
Applicability. It is particularly applicable to polyamide (except polyamide 11 and 12) components, which in order to attain their optimum performance characteristics at +23 °C ± 2 °C and 50% ± 5% relative humidity (RH), must have moisture content of 2% minimum in their finished form. The absorption of water affects the physical properties of polyamide (except polyamide 11 and 12). After manufacture, components shall be conditioned by suitable means (i.e. immersion in hot water) such that the moisture content thus attained approximates to that necessary to achieve optimum properties and dimensional stability during normal service and assembly conditions