EN ISO 17184:2014 PDF

Name: EN ISO 17184:2014 — Soil quality - Determination of carbon and nitrogen by near-infrared spectrometry (NIRS) (ISO 17184:2014)
SKU: EN ISO 17184:2014
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Soil quality - Determination of carbon and nitrogen by near-infrared spectrometry (NIRS) (ISO 17184:2014)

Название (английский):

EN ISO 17184:2014

Soil quality - Determination of carbon and nitrogen by near-infrared spectrometry (NIRS) (ISO 17184:2014)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 21 мая 2014 г.
Издание:: CEN EN 17184 edition 1 version 1
ICS:: 13.080.10

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Описание (английский):

ISO 17184:2014 specifies a method for the determination of carbon and nitrogen in soils by direct measurement of sample spectra in the near-infrared spectral region. The spectra are evaluated by a suitable calibration model derived from the results obtained by reference methods.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты EN

Overview

EN ISO 17184:2014 - "Soil quality - Determination of carbon and nitrogen by near‑infrared spectrometry (NIRS)" - specifies a standardized method to determine soil carbon and nitrogen by direct measurement of soil reflectance spectra in the near‑infrared (NIR) region. Spectra are interpreted using calibration models derived from reference-method results to provide fast, non‑destructive soil analysis for quality monitoring and routine testing.

Key topics and technical requirements

Scope and principle: Direct diffuse‑reflectance NIR measurement of soil samples; calibration links spectral data to carbon and nitrogen content. NIR advantages: fast, non‑destructive, lower environmental impact than wet chemistry.

Wavelength range: Instruments typically operate in the 900–2 500 nm region.

Instrument requirements:

Diffuse reflectance NIR spectrometer with a measurement cell for pulverized solids.
Instrument resolution 8 nm or better recommended.
Software for instrument tests, calibration, measurement and data evaluation.

Sample preparation:

Prepare samples identically to calibration set; homogenize thoroughly.
Follow ISO 11464 for pretreatment (commonly particle size < 2 mm).
Prefer air‑dried or oven‑dried samples; method not suitable for samples with >10% water content.

Calibration and validation:

Calibration models built from spectra plus reference laboratory determinations (e.g., chemical analysis).
Typical multivariate methods: PCR, PLS, LWR, SMLR, ANN (note: ANN typically requires >500 calibration samples).
For diverse soils, 60–100 calibration samples are recommended as a minimum.
Validate models via cross‑validation (RMSECV) and external validation (RMSEP); report correlation coefficient (R) and RMSE metrics.
Instrument-to-instrument calibration transfer may require standardization, bias/slope adjustments.

Applications and who uses the standard

Practical applications:

Routine soil testing for agronomy (soil fertility and management).
Environmental monitoring and soil quality assessment.
Carbon stock estimation and land‑use studies where rapid screening is needed.
High‑throughput screening in research and commercial soil labs.

Typical users:

Soil testing laboratories and service providers.
Agricultural advisors and agronomists.
Environmental consultancies and government monitoring agencies.
Research institutions and instrument manufacturers developing NIR calibrations.

Related standards

ISO 11464 - Soil quality - Pretreatment of samples for physico‑chemical analysis (normative reference cited in EN ISO 17184:2014).

Users should also consider national CEN adoption documents and guidance on instrument standardization and calibration transfer.

EN ISO 17184:2014 is essential for organizations implementing robust, reproducible NIR methods for soil carbon and nitrogen analysis and for anyone developing or validating soil spectral calibrations.

EN ISO 17184:2014 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses the standard

Related standards

Технические детали

ISO 17184:2014

Soil quality — Determination of carbon and nitrogen by near-infrared spectrometry (NIRS)

SIST ISO 11464:2006

Soil quality -- Pretreatment of samples for physico-chemical analysis

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