ASTM D621 PDF

More D The coolant concentrate mixed with water or the prediluted coolant, when maintained with maintenance doses of supplemental coolant additives SCA , shall be suitable for use in a properly maintained cooling system in normal service for a minimum of two years. In addition, the coolant concentrate or prediluted coolant shall provide protection in operating engines against cavitation corrosion also termed liner pitting and against scaling of internal engine hot surfaces. Hot surfaces typically are within the engine head, head spacer, upper cylinder liner, or liquid cooled exhaust manifold.

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More D The coolant concentrate mixed with water or the prediluted coolant, when maintained with maintenance doses of supplemental coolant additives SCA , shall be suitable for use in a properly maintained cooling system in normal service for a minimum of two years. In addition, the coolant concentrate or prediluted coolant shall provide protection in operating engines against cavitation corrosion also termed liner pitting and against scaling of internal engine hot surfaces.

Hot surfaces typically are within the engine head, head spacer, upper cylinder liner, or liquid cooled exhaust manifold. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Scope 1. However, several serious cases of very poor performance have been reported and substantiated in heavy duty fleets when recycled glycols from sources such as above have been used to prepare engine coolants.

Efforts are underway to more clearly define the purity requirements for glycols used to prepare engine coolants meeting this specification, whether from recycled engine coolants or other sources.

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ASTM D621 PDF

It is critical for organizations to understand under what conditions components will suffer structural failure and deplete their functionality. Tensile Testing NTS can perform the necessary analysis and inspection. NTS can perform mechanical testing as an independent analysis or in combination with environmental stimulation, including:. Data sheets for overmetals, plastics, ceramics, and composites. In addition, mechanical testing contributes to product excellence, safety and technological innovation.

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