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1.1 A non-aqueous engine coolant is a glycol, diol, triol, or mixtures thereof, based heat transfer fluid containing less than 1.0 % water when formulated and intended for final use without dilution with water. (Definition from Terminology D4725.)1.2 This specification covers the requirements for fully formulated non-aqueous glycol base coolants for cooling systems of heavy-duty engines. These coolants will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, boiling, and excessive viscosity.1.3 This specification is intended to cover the requirements for non-aqueous engine coolants prepared from virgin glycols, diols, or triols, or mixtures thereof.1.4 Coolants meeting this specification exhibit very low vapor pressures under all operating conditions, thereby avoiding the creation and collapse of coolant vapor, the primary cause of pump and cylinder liner cavitation erosion. They may additionally contain additives that provide traditional anti-cavitation erosion coatings but there is no requirement that they must. Non-aqueous engine coolants usually contain one or more carboxylates and do not normally contain nitrites. It is suggested that coolant testing be undertaken at normal manufacturer’s recommended intervals to monitor degradation products. The low vapor pressures inherent in coolants that meet this specification also provide protection from hot surface scaling, as liquid coolant is in contact with all hot metal surfaces of the engine cooling system at all times.1.5 Water is a contaminant to non-aqueous engine coolants and it is suggested that water content be tested periodically with test strips to ideally keep water content of the coolant at 3 % or less. Increases in water cause an undesirable drop in the boiling point. It is instructive that the glassware corrosion testing per this specification is conducted at 6 % corrosive water.1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 The logarithmic viscosity number provides information on the effect of compounding or processing of PVC.5.2 Exposure of PVC compositions to shear or to high temperatures can result in a change in the logarithmic viscosity number of the resin.1.1 This test method covers the determination of the logarithmic viscosity number of poly(vinyl chloride) (PVC) homopolymers after compounding or processing.1.2 It is the basic assumption of this technique that the formulation of the compounded resin is known and that any additives present can be separated from the resin by extraction with diethyl ether. This is necessary to permit adjustment of the amount of sample used in the test to give a resin concentration in cyclohexanone of 0.2 ± 0.002 g/100 mL.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 7.3 and 8.4.1.NOTE 1: This test method and ISO 1628-2 are not equivalent.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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This specification covers the requirements for fully-formulated glycerin base coolants for cooling systems of heavy-duty engines. It also notes that the requirements of the coolant concentrate or prediluted coolant include protection in operating engines against cavitation corrosion and scaling of internal engine hot surfaces.1.1 This specification covers the requirements for fully-formulated glycerin base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 % to 60 % glycerin concentration by volume in water of suitable quality (see Appendix X1), or when prediluted glycerin base engine coolants (50 volume % min) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling.1.2 This specification is intended to cover the requirements for engine coolants prepared from virgin glycerin.NOTE 1: This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients that comply with Specification D7714.1.3 The coolants governed by this specification are categorized as follows:Coolant Type DescriptionV-FF Glycerin base concentrateVI-FF Glycerin predilute (50 vol %)1.4 Coolant concentrates meeting this specification do not require addition of supplemental coolant additive (SCA) until the first maintenance interval when a maintenance dose of SCA is required to continue protection in certain heavy duty engine cooling systems, particularly those of the wet cylinder liner-in-block design. The SCA additions are defined by and are the primary responsibility of the engine manufacturer or vehicle manufacturer. If they provide no instructions, follow the SCA supplier's instructions.1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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This specification covers the requirements for fully formulated glycol base engine coolants intended for use in the cooling systems of heavy-duty engines. The coolants governed by this specification are categorized as follows: propanediol base concentrate and prediluted propanediol. The coolants shall provide protection in operating engines against cavitation corrosion (also termed as liner pitting) and internal engine hot surface scaling. Hot surfaces typically are within the engine head, head spacer, upper cylinder liner, or liquid cooled exhaust manifold. Both the concentrated and prediluted coolants shall meet the sulfate ion content requirement.1.1 This specification covers the requirements for fully-formulated glycol base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60 % PDO concentration by volume in water of suitable quality, (see Appendix X1), or when prediluted PDO base engine coolants (50 volume % minimum) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling.1.2 The coolants governed by this specification are categorized as follows:Coolant Type Description   I-FF 1,3 Propanediol base concentrateII-FF 1,3 Propanediol predilute (50 vol %)1.3 Coolant concentrates meeting this specification do not require any addition of Supplemental Coolant Additive (SCA) until the first maintenance interval when a maintenance dose of SCA is required to continue protection in certain heavy-duty engine cooling systems, particularly those of the wet cylinder liner-in-block design. The SCA additions are defined by and are the primary responsibility of the engine manufacturer or vehicle manufacturer. If they provide no instructions, follow the SCA supplier’s instructions.1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses after SI units are provided for information only and are not considered standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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This specification covers the requirements for fully-formulated glycol base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60 % glycol concentration by volume in water of suitable quality, or when prediluted glycol base engine coolants (50 volume % minimum) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling. 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.1.1 This specification covers the requirements for fully-formulated glycol base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60 % glycol concentration by volume in water of suitable quality, (see Appendix X1), or when prediluted glycol base engine coolants (50 volume % minimum) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling.1.2 This specification is intended to cover the requirements for engine coolants prepared from virgin or recycled ethylene or propylene glycol.NOTE 1: Committee D15 has not substantially studied the impact of using recycled glycols from sources such as:• glycol bottoms• polyester manufacturing waste• aircraft and runway deicers• medical wasteto prepare engine coolants. 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.1.3 The coolants governed by this specification are categorized as follows:Coolant Type Description   I-FF Ethylene glycol base concentrateII-FF Propylene glycol base concentrateIII-FF Ethylene glycol predilute (50 vol %)IV-FF Propylene glycol predilute (50 vol %)1.4 Coolant concentrates meeting this specification do not require any addition of Supplemental Coolant Additive (SCA) until the first maintenance interval when a maintenance dose of SCA is required to continue protection in certain heavy duty engine cooling systems, particularly those of the wet cylinder liner-in-block design. The SCA additions are defined by and are the primary responsibility of the engine manufacturer or vehicle manufacturer. If they provide no instructions, follow the SCA supplier's instructions.1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This specification covers the requirements for a fully-formulated propylene glycol-base coolant for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60% propylene-glycol concentration by volume in water of suitable quality, (see Appendix X1), or when prediluted propylene-glycol base engine coolants (50% volume, % minimum) are used without further dilution it will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling.

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