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1. (WO1998050783) PREPARATION OF A MINERAL FIBRE PRODUCT

Pub. No.:    WO/1998/050783    International Application No.:    PCT/DK1998/000171
Publication Date: Fri Nov 13 00:59:59 CET 1998 International Filing Date: Fri May 01 01:59:59 CEST 1998
IPC: G01N 21/35
Applicants: ROCKWOOL INTERNATIONAL A/S
RIIS, Jens
Inventors: RIIS, Jens
Title: PREPARATION OF A MINERAL FIBRE PRODUCT
Abstract:
This invention relates to a contactless process for fast determination of one or more properties of a mineral fibre product such as binder content, oil content, silane content, tenside content, shot content and/or density in which process the mineral fibre product is irradiated, where corresponding values for radiation intensity and wavelength in the infrared range are determined for a part of the from said mineral fibre product reflected light, where the said corresponding values are compared to mutually corresponding values of radiation intensity and wavelength for reference samples of known properties, and where the properties of said mineral fibre product are calculated on the basis of the comparison.