Materiales
Materiales
ISO 14899:2022 - Plastics — Polyols for use in the production of polyurethanes — Determination of basicity
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This document specifies a method for the measurement of trace amounts of basic materials present in polyether polyols used in the production of polyurethanes. It is important to know the trace...
D7133 Standard Test Method for Polyurethane Raw Materials: Instrumental Measurement of Tristimulus CIELAB Color and Yellowness Index of Liquids has been revised to D7133-21
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Significance and Use 5.1Â CIELAB is a visual-based scale that is used to specify color and set color tolerances for the polyurethane industry. 5.2Â Yellowness Index...
D1786 Standard Specification for Toluene Diisocyanate has been revised to D1786-21
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Abstract This specification covers toluene diisocyanate used as an ingredient in the production of polyurethane cellular materials. The three classes of toluene...
D4274 Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Numbers of Polyols has been revised to D4274-21
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Significance and Use 5.1Â These test methods are suitable for research and as quality control and specification tests. It is necessary to know the hydroxyl contents of polyols...
D4671 Standard Test Method for Polyurethane Raw Materials: Determination of Unsaturation of Polyols has been revised to D4671-21
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Significance and Use 5.1Â This test method is suitable for quality control, as specification tests, and for research. 5.2Â Side reactions that form unsaturated...
C1847 Standard Specification for Direct Buried Pre-Insulated and Jacketed Polyurethane Bonded Low Temperature Hot Water Piping Systems is a new standard now available. C1847-21
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1. Scope 1.1 This specification covers direct buried underground pre-insulated, hot water piping systems with an upper temperature limit of 250 °F (121 °C) used...
Two-component epoxy and polyurethane adhesives for on-site repair of cracked timber structures - Testing, requirements and repair strength verification
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This document specifies test methods and requirements for two-component epoxy and polyurethane adhesives for on-site repair of cracks in timber structures made of strength graded structural timber...
F1839 Standard Specification for Rigid Polyurethane Foam for Use as a Standard Material for Testing Orthopaedic Devices and Instruments has been reapproved, available as F1839-08(2021)
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Abstract This specification covers rigid polyurethane foam blocks or sheets recommended for use as a standard material for mechanical testing using orthopedic devices and...
D7119/D7119M Standard Guide for Sampling Spray Polyurethane Foam and Coating in Roofing has been revised to D7119/D7119M-21
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Significance and Use 4.1Â Adequate coating thickness (mil thickness) is necessary to protect polyurethane foam from the effects of ultraviolet degradation. This guide outlines...
D4889 Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Crude or Modified Isocyanates has been revised to D4889-21
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Significance and Use 4.1Â These test methods can be used for research, quality control, or specification tests to characterize isocyanates used in polyurethane products. ...
D5523 Standard Test Method for Polyurethane Raw Materials: Acidity by Argentometric Determination of Hydrolyzable Chlorine in Monomeric, Aromatic Isocyanates has been revised to D5523-21
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Significance and Use 5.1Â This test method is suitable for research or for quality control to characterize TDI and MDI. 5.2Â This test method was developed to overcome...
D7997 Standard Practice for Polyurethane Raw Materials: Gel Tests for Polyurethane Non-Foam Formulations has been revised to D7997-21
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Significance and Use 5.1Â General Utility:Â 5.1.1Â This practice is suitable for research, quality control, specification testing and process control. ...
C1029 Standard Specification for Spray-Applied Rigid Cellular Polyurethane Thermal Insulation has been revised to C1029-20
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Abstract This specification covers the types and physical properties of spray applied rigid cellular polyurethane intended for use as thermal insulation. Spray-applied...
D4662 Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols has been revised to D4662-20
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Significance and Use 5.1 These test methods are suitable for quality control, as specification tests, and for research. The acid and alkalinity numbers indicate the extent...
D4663 Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates has been revised to D4663-20
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Significance and Use 5.1 This test method can be used for research or for quality control to characterize toluene diisocyanates. Hydrolyzable chlorine correlates with...
