No abstract

No abstract

No abstract

No abstract

Since low-field nuclear magnetic resonance (LF NMR) becomes a widely used technique of polymer structure analysis, the unification of the variety of measurements made on different LF NMR devices is particularly necessary. The basic approach to make them comparable for different kinds of hardware is given. It is based on the experimentally proven fact that artefact contributions to the values of spin-spin relaxation time have a multiplicative character. Recommendations of how to use reference samples are presented as well.