Plastics. Polyols for use in the production of polyurethane. Determination of hydroxyl number1 Scope This document specifies two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials. It is necessary to know the hydroxyl content of polyols to properly formulate polyurethane systems. Method A is primarily applicable to readily esterified polyether polyols. It is also intended for polyols which have significant steric hindrance, such as those based on sugars. Method B is intended for polyether polyols,

ISO 4623-1 helps you manufacture high-quality protective coatings for a steel substrate by determining the resistance of coatings to filiform corrosion

ISO 18582‑2 provides sufficient detail of information required for unambiguous electronic data exchange for the business area of pneumatic fluid power systems

Aluminium and steel testing laboratories

— measurement processes

Bound products

This part of IEC 60534 includes equations for predicting the flow of compressible and incompressible fluids through control valves

particularly BS EN ISO 1101:2017

Risk management (Subclause 8

guidance on test methods and requirements provided by BS EN 12259-9

pressure or temperature of the water in water supply installations

is maintained in a clean condition and shall be free of contaminants that might influence test results

This test method helps you ensure the sustainability of Poly(vinyl chloride) (PVC) based profiles that result in manufacturing good quality profiles