Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Polyethylenes and polypropylenes algolia-search-ignore 1 Foreword

1 Foreword

such that the amount of deposited particulate lead collected on the filter of the sampling equipment is greater than 1 4g if the final determination is made by flame atomic absorption spectrometry

This is Part 2 of the European standard on explosive atmospheres

BS EN 61970-501 specifies a Component Interface Specification (CIS) for energy management systems application program interfaces

1 Number and dimensions of the test specimens

Plastics. Determination of the viscosity of polymers in dilute solution using capillary viscometers - Polyethylenes and polypropylenes algolia-search-ignore 1 Foreword1 Scope This part of ISO 1628 defines particular conditions for determining the reduced viscosity (also known as viscosity number) and intrinsic viscosity of polyethylenes and polypropylenes at 135 C in dilute solution. The viscosity of polymer solutions may be affected by additives present in the sample. The value of a reduced viscosity determined by this method may therefore be unreliable if the sample contains fillers or other additives. NOTE