ISO/TS 16558-2:2015 PDF

Soil quality — Risk-based petroleum hydrocarbons — Part 2: Determination of aliphatic and aromatic fractions of semi-volatile petroleum hydrocarbons using gas chromatography with flame ionization detection (GC/FID)

First page of standard ISO/TS 16558-2:2015

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Title (English):

ISO/TS 16558-2:2015

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 20
Publication date:: August 10, 2015
Edition:: ISO TS 16558 edition 1 version 1
ICS:: 13.080.10

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Description (English):

ISO/TS 16558-2:2015 specifies a method for the quantitative determination of the total extractable semi-volatile, aliphatic, and aromatic fractions of petroleum hydrocarbon content in field moist soil samples by gas chromatography. The results of the test carried out can be used for risk assessment studies related to contaminations with petroleum hydrocarbons. ISO/TS 16558-2:2015 provides a method applicable to petroleum hydrocarbon contents from about 100 mg/kg soil expressed as dry matter for the whole aliphatic fraction C10 to C40, as well as the aromatic fraction C10 to C40. For sub-fractions, lower limits of determination can be reached. If lower detection limits are required, large volume injection can be used or concentration of the final extract can be carried out. NOTE 1 Low concentrations of aliphatic and aromatic compounds can be found in natural uncontaminated organic rich soils like peat soils.

Technical details

Technical committee: ISO/TC 190/SC 3 - Chemical and physical characterization
SKU: ISO/TS 16558-2:2015

Abstract

Overview

ISO/TS 16558-2:2015 - Soil quality - Risk-based petroleum hydrocarbons - Part 2 specifies a laboratory method for the quantitative determination of semi-volatile petroleum hydrocarbons (C10–C40) in field‑moist soil. The technique uses solvent extraction followed by gas chromatography with flame ionization detection (GC/FID) to report the total extractable petroleum hydrocarbons and to split that total into aliphatic and aromatic fractions. Results are intended for use in risk assessment, site characterization and contaminant monitoring.

Key topics and requirements

Scope & detection limits: Applicable to whole aliphatic and aromatic fractions from about 100 mg/kg (dry matter) for C10–C40; lower limits for sub‑fractions can be achieved by large‑volume injection or concentrating extracts.
Extraction principle: Homogenized soil extracted with an acetone / n‑heptane mixture (2+1) by shaking or sonication; organic layer separated, washed and aliquots analysed.
Chromatographic window: Quantification is based on the total peak area between n‑decane (C10) and n‑tetracontane (C40) retention times.
Fractionation: Extract is split on a silicagel (silica gel) column to obtain the aliphatic fraction (eluted with pentane/hexane/heptane) and the aromatic fraction (eluted with dichloromethane or dichloromethane:n‑heptane 1:1).
Quality control: Includes blanks, system performance tests, repeatability checks, calibration (using hydrocarbon standards), integration rules and validity checks per ISO guidance.
Interferences: Non‑petroleum compounds with similar boiling ranges (e.g., some halogenated hydrocarbons) may interfere with results.
Boiling range interpretation: The method enables approximate boiling‑range and qualitative composition assessment using n‑alkane peaks (Annex B).

Applications

Environmental risk assessment and human health/ecological screening for petroleum hydrocarbon contamination.
Site investigations and baseline soil characterization for spills, storage tank leaks, industrial sites and oil‑impacted land.
Remediation monitoring to track reductions in semi‑volatile hydrocarbon fractions.
Regulatory compliance reporting and selection of appropriate remedial actions based on aliphatic vs aromatic content.

Who should use it

Accredited environmental and analytical laboratories performing soil contaminant testing.
Environmental consultants, remediation contractors, regulatory agencies and risk assessors involved in contaminated land management.

Related standards

ISO 16558-1 (volatile petroleum hydrocarbons - static headspace GC)
ISO 16703 (determination of hydrocarbons C10–C40 by GC)
ISO 11504, ISO 8466-1, ISO 10381-1, ISO 11465, ISO 14507, ISO 18512 - referenced for calibration, sampling, pretreatment and storage guidance.

Keywords: ISO/TS 16558-2:2015, soil quality, petroleum hydrocarbons, semi-volatile, GC/FID, aliphatic aromatic fractions, C10–C40, soil contamination, risk assessment.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and requirements

Scope & detection limits: Applicable to whole aliphatic and aromatic fractions from about 100 mg/kg (dry matter) for C10–C40; lower limits for sub‑fractions can be achieved by large‑volume injection or concentrating extracts.
Extraction principle: Homogenized soil extracted with an acetone / n‑heptane mixture (2+1) by shaking or sonication; organic layer separated, washed and aliquots analysed.
Chromatographic window: Quantification is based on the total peak area between n‑decane (C10) and n‑tetracontane (C40) retention times.
Fractionation: Extract is split on a silicagel (silica gel) column to obtain the aliphatic fraction (eluted with pentane/hexane/heptane) and the aromatic fraction (eluted with dichloromethane or dichloromethane:n‑heptane 1:1).
Quality control: Includes blanks, system performance tests, repeatability checks, calibration (using hydrocarbon standards), integration rules and validity checks per ISO guidance.
Interferences: Non‑petroleum compounds with similar boiling ranges (e.g., some halogenated hydrocarbons) may interfere with results.
Boiling range interpretation: The method enables approximate boiling‑range and qualitative composition assessment using n‑alkane peaks (Annex B).

Applications

Environmental risk assessment and human health/ecological screening for petroleum hydrocarbon contamination.
Site investigations and baseline soil characterization for spills, storage tank leaks, industrial sites and oil‑impacted land.
Remediation monitoring to track reductions in semi‑volatile hydrocarbon fractions.
Regulatory compliance reporting and selection of appropriate remedial actions based on aliphatic vs aromatic content.

Who should use it

Accredited environmental and analytical laboratories performing soil contaminant testing.
Environmental consultants, remediation contractors, regulatory agencies and risk assessors involved in contaminated land management.

Related standards

ISO 16558-1 (volatile petroleum hydrocarbons - static headspace GC)
ISO 16703 (determination of hydrocarbons C10–C40 by GC)
ISO 11504, ISO 8466-1, ISO 10381-1, ISO 11465, ISO 14507, ISO 18512 - referenced for calibration, sampling, pretreatment and storage guidance.

Keywords: ISO/TS 16558-2:2015, soil quality, petroleum hydrocarbons, semi-volatile, GC/FID, aliphatic aromatic fractions, C10–C40, soil contamination, risk assessment.

ISO/TS 16558-2:2015 PDF

Technical details

Abstract

Overview

Key topics and requirements

Applications

Who should use it

Related standards

Related standards

Abstract

Overview

Key topics and requirements

Applications

Who should use it

Related standards

Related standards

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