ISO 23909:2008 PDF

Soil quality — Preparation of laboratory samples from large samples

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Title (English):

ISO 23909:2008

Soil quality — Preparation of laboratory samples from large samples

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 10
Publication date:: March 31, 2008
Edition:: ISO IS 23909 edition 1 version 1
ICS:: 13.080.05

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Description (English):

ISO 23909:2008 specifies a method for the preparation of laboratory samples from large samples. In accordance with ISO 11464 and ISO 14507, the following analyses are considered: determination of physico-chemical parameters, determination of moderate volatile organic contaminants, and determination of non-volatile contaminants. ISO 23909:2008 is not applicable when volatile organic compounds have to be analysed.

Technical details

Technical committee: ISO/TC 190/SC 3 - Chemical and physical characterization
SKU: ISO 23909:2008

Abstract

Overview

ISO 23909:2008 - Soil quality - Preparation of laboratory samples from large samples - defines how to prepare representative laboratory samples from large bulk soil samples (typically up to 25 kg, and applicable to larger samples). The standard links field sampling of large volumes with laboratory pretreatment and analysis workflows used for physico‑chemical parameters, moderately volatile organic contaminants, and non‑volatile contaminants. It explicitly excludes procedures for analysing volatile organic compounds.

Key topics and requirements

Scope and purpose: Convert large field samples into representative laboratory samples suitable for subsequent analyses described in ISO 11464, ISO 14507 and ISO 16720.
Representativity: Minimum subsample mass depends on the maximum particle (macro‑aggregate) size (see Annex A). The standard emphasizes maintaining sample integrity and representativity during mixing, division and size reduction.
Methods of sample division: Approved techniques to obtain a ~1 kg laboratory sample include:
- Coning and quartering
- Riffling (riffle boxes)
- Tyler divider
- Rotating divider
Size reduction: If particle size is too large, staged crushing (stone crusher or similar) may be required before final reduction to

Related standards

Standards mentioned in the description

Overview

Key topics and requirements

Scope and purpose: Convert large field samples into representative laboratory samples suitable for subsequent analyses described in ISO 11464, ISO 14507 and ISO 16720.
Representativity: Minimum subsample mass depends on the maximum particle (macro‑aggregate) size (see Annex A). The standard emphasizes maintaining sample integrity and representativity during mixing, division and size reduction.
Methods of sample division: Approved techniques to obtain a ~1 kg laboratory sample include:
- Coning and quartering
- Riffling (riffle boxes)
- Tyler divider
- Rotating divider
Size reduction: If particle size is too large, staged crushing (stone crusher or similar) may be required before final reduction to

ISO 23909:2008 PDF

Technical details

Abstract

Overview

Key topics and requirements

Related standards

Abstract

Overview

Key topics and requirements

Related standards

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

Soil quality - Pretreatment of samples for determination of organic contaminants

Soil quality - Pretreatment of samples by freeze-drying for subsequent analysis (ISO 16720:2005)