Plastics. Polyurethane raw materials. Determination of isocyanate content Ingestion-build-67170 The Assertion Package

The Assertion Package

Physical characteristics

Example of calculation of theoretical oxygen demand

BS EN 15422 specifies requirements for glassfibres used as reinforcement in mortars and concrete for non-structural products

demoulding and conditioning specimens

Plastics. Polyurethane raw materials. Determination of isocyanate content Ingestion-build-67170 The Assertion Package1 Scope This lnternational Standard specifies two methods for the measurement of the isocyanate content of aromatic isocyanates used as polyurethane raw materials. Method A is primarily applicable to refined toluene diisocyanate (TDI), methylene bis (4 phenylisocyanate) (MDI) and their prepolymers. Method B is applicable to refined, crude or modified isocyanates derived from toluene diisocyanate, methylene bis (4 phenylisocyanate) and polymethylene