Standard

NS-EN 17992:2024

Jan 2025 Published

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Abstract

This document specifies a method for the determination of soluble 16-O-Methylcafestol and 16-O-Methylkahweol content (the sum of free forms and derivatives, e.g. fatty acid esters, henceforth abbreviated as 16-OMD = “diterpenes”) in roasted coffee (beans or ground), using quantitative proton nuclear magnetic resonance spectroscopy (1H-qNMR).If complying with the experimental parameters described below, this test procedure has been proven for the following mass fraction range:w16-OMD: 20 mg/kg to 2 000 mg/kg.The mass fraction range can be expanded by suitable changes of the experimental parameters, e.g. a different weighed portion of ground coffee or the accumulation of more NMR-transients.

Document information

Standard from SN
Published: 15 January 2025
Edition: 2024-11
Version: 1
Document type: NAT
ISBN:

ICS 67.140.20
National Committee CEN/TC 460

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Refers: ISO 3310-1:2016
Refers: ISO 3310-1:2016
Refers: ISO 3310-1:2016
Refers: ISO 3509:2005
Refers: ISO 3509:2005
Adopted from: EN 17992:2024

NS-EN 17992:2024

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