ISO/NP 26773-2

Plastics--Determination of polyamides by Near-Infrared Spectroscopy — Part 2: Part 2: Water content ISO/NP 26773-2

Scope

This document specifies a general method for the rapid determination of water content of polyamide (PA) using Near-Infrared (NIR) spectroscopy, mainly involving relevant terms and definitions, the principle of the test, instrument requirements, sample selection, procedures for establishing, validating and maintaining calibration models, as well as the steps for sample measurement.
This document is applicable to polyamides including but not limited to PA46, PA6, PA66, PA69, PA610, PA612, PA11, PA12, PA6T/66, PA6I/6T, PA6T/6I/66, PA6T/6I, PA6I/6T/66 and PA MXD6, as well as copolyamides and polyamide compounds. This document is suitable for use in research, quality control, specification testing and process control of PA.