Patent ID: 9714889
Date: 2017-07-25
CPC Classifications: C09K,G01N,Y10T

Claim:
1. A sampling procedure for an aqueous hydrosoluble polymer solution flowing in a main circuit, enabling a sample to be collected to undergo at least one characterisation under ambient air comprising: obtaining the sample by adding to the aqueous hydrosoluble polymer solution a stabilizing solution, according to a discontinuous addition method: the discontinuous addition method comprising: adding the stabilizing solution, either after sampling, or, before sampling, to the aqueous hydrosoluble polymer solution circulating in the main circuit, and obtaining a sample comprising a mixture of aqueous hydrosoluble polymer solution and stabilizing solution, wherein the aqueous hydrosoluble polymer is protected against attacks it may undergo, in the absence of a stabilizing solution, in an atmosphere containing at least 10% by volume of oxygen; wherein the stabilized solution is added in a predetermined quantity, based on a viscosity of the sample and over a predetermined time based on a flow rate of the aqueous polymer solution circulating in the main circuit, to the collected sample so that the sample contains a mixture of the stabilizing solution and the aqueous hydrosoluble polymer solution.