Materiales
Materiales
IEC 62321-11:2023 - Determination of certain substances in electrotechnical products — Part 11: Tris (2-chloroethyl) phosphate (TCEP) in plastics by gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS)
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This part of IEC 62321 specifies two different techniques for the determination of tris(2?chloroethyl) phosphate (TCEP) in plastics, the GC-MS or LC-MS method, both of which are applicable to...
ISO 14900:2023 - Plastics — Polyols for use in the production of polyurethanes — Determination of hydroxyl number
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This document specifies two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials.
The hydroxyl content of polyols are...
ISO 8124-6:2023 - Safety of toys — Part 6: Certain phthalate esters
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This document specifies a method standard for the determination of di-iso-butyl phthalate (DIBP), di-n-butyl phthalate (DBP), benzyl-butyl phthalate (BBP), bis-(2-ethylhexyl)...
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...
