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EVS-EN ISO 1183-2:2026
Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method (ISO 1183-2:2026)
Scope: This document specifies a gradient column method for the determination of the density of non-cellular moulded or extruded plastics or pellets in void-free form.
Base documents: ISO 1183-2:2026; EN ISO 1183-2:2026
Replaces: EVS-EN ISO 1183-2:2019
ISO 17223:2026
Plastics — Determination of yellowness index and change in yellowness index
Scope: This document specifies an instrumental method for determining the yellowness index and change in yellowness index on clear, translucent, or opaque plastics.
NOTE Change in yellowness index is often used to evaluate the effect of environment, e.g. heat, UV exposure, etc., on colour stability.
NOTE Change in yellowness index is often used to evaluate the effect of environment, e.g. heat, UV exposure, etc., on colour stability.
Base documents:
Replaces: ISO 17223:2014
ISO 11359-3:2026
Plastics — Thermomechanical analysis (TMA) — Part 3: Determination of penetration temperature
Scope: This document specifies a method for the determination of the penetration temperature of thermoplastics using thermomechanical analysis (TMA).
NOTE This method can also be used to measure the softening point.
NOTE This method can also be used to measure the softening point.
Base documents:
Replaces: ISO 11359-3:2019
ISO 26603:2026
Plastics — Aromatic isocyanates for use in the production of polyurethanes — Determination of total chlorine
Scope: This document specifies the determination of the total chlorine content of aromatic isocyanates used in the preparation of polyurethanes.
The difference between the total chlorine content and the hydrolyzable chlorine content (see ISO 15028) is a measure of the process solvents left in the product. All the test methods are applicable to a variety of organic compounds, including aliphatic isocyanates, but the amount of sample used might need to be adjusted.
These test methods can be used for research or for quality control.
The difference between the total chlorine content and the hydrolyzable chlorine content (see ISO 15028) is a measure of the process solvents left in the product. All the test methods are applicable to a variety of organic compounds, including aliphatic isocyanates, but the amount of sample used might need to be adjusted.
These test methods can be used for research or for quality control.
Base documents:
Replaces: ISO 26603:2017
Replaced standards
ISO 17223:2014
Plastics -- Determination of yellowness index and change in yellowness index
Scope: ISO 17223:2014 specifies an instrumental method for determining the yellowness index and change in yellowness index on clear, translucent, or opaque plastics.
Base documents:
Replaced: ISO 17223:2026
ISO 26603:2017
Plastics -- Aromatic isocyanates for use in the production of polyurethanes -- Determination of total chlorine
Scope: ISO 26603:2017 specifies the determination of the total chlorine content of aromatic isocyanates used in the preparation of polyurethanes. The difference between the total chlorine content and the hydrolyzable chlorine content (see ISO 15028) is a measure of the process solvents left in the product. Both test methods are applicable to a variety of organic compounds, including aliphatic isocyanates, but the amount of sample used might need to be adjusted. These test methods can be used for research or for quality control.
NOTE This document is technically equivalent to ASTM D4661?03.
NOTE This document is technically equivalent to ASTM D4661?03.
Base documents:
Replaced: ISO 26603:2026
EVS-EN ISO 1183-2:2019
Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method (ISO 1183-2:2019)
Scope: This document specifies a gradient column method for the determination of the density of non-cellular moulded or extruded plastics or pellets in void-free form. Density gradient columns are columns containing a mixture of two liquids, the density in the column increasing uniformly from top to bottom.
NOTE Density is frequently used to follow variations in physical structure or composition of plastic materials. Density can also be useful in assessing the uniformity of samples or specimens. The density of plastic materials can depend upon the choice of specimen preparation method. When this is the case, precise details of the specimen preparation method are intended to be included in the appropriate material specification.
NOTE Density is frequently used to follow variations in physical structure or composition of plastic materials. Density can also be useful in assessing the uniformity of samples or specimens. The density of plastic materials can depend upon the choice of specimen preparation method. When this is the case, precise details of the specimen preparation method are intended to be included in the appropriate material specification.
Base documents: ISO 1183-2:2019; EN ISO 1183-2:2019
Replaced: EVS-EN ISO 1183-2:2026
ISO 11359-3:2019
Plastics -- Thermomechanical analysis (TMA) -- Part 3: Determination of penetration temperature
Scope: This document specifies a method for the determination of the penetration temperature of thermoplastics using thermomechanical analysis (TMA).
NOTE This method can also be used to measure the softening point.
NOTE This method can also be used to measure the softening point.
Base documents:
Replaced: ISO 11359-3:2026