ISO 5279-1980 errata 1981 PDF

Full title and description

St ISO 5279-1980 errata 1981 — Original standard: ISO 5279:1980, "Toluene — Determination of hydrocarbon impurities — Gas chromatographic method". The 1981 errata is an official corrections sheet issued after publication to clarify and correct items in the 1980 edition.

Abstract

ISO 5279:1980 specifies a gas chromatographic procedure for the quantitative determination of hydrocarbon impurities in toluene (benzene, C8 aromatics and aliphatics up to n‑nonane) in the approximate concentration range 0.01 % (m/m) to 1.00 % (m/m). The method uses an internal standard, separation on a GC column and detection (flame ionization detector) with identification by relative retention times and quantification from peak area ratios. The 1981 errata provides authorised corrections and clarifications to the printed 1980 text.

General information

• Status: Withdrawn (original edition 1980; errata sheet issued 1981).
• Publication date: Original standard published October 1980; errata issued 1981.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 71.080.15 (Aromatic hydrocarbons / analytical chemistry).
• Edition / version: Edition 1 (1980) with errata (1981).
• Number of pages: Main standard: 4 pages (1980). Errata sheet: published 1981 (usually issued as a short corrigendum).

Scope

This document applies to the quantitative determination of specific hydrocarbon impurities present in toluene — principally benzene, C8 aromatics and aliphatics up to n‑nonane — using a gas chromatographic technique suitable for concentrations in the range ~0.01 % to 1.00 % (m/m). The procedure covers sample preparation (addition of an internal standard), chromatographic separation, detection and calculation of impurity concentrations from peak areas. The 1981 errata corrects and clarifies points of the published method.

Key topics and requirements

• Gas chromatographic separation of hydrocarbon impurities in toluene.
• Use of an internal standard for quantitative analysis.
• Detection by flame ionization detector (FID) and peak-area quantification.
• Identification by relative retention times (benchmarked against standards).
• Reporting concentration range and limits of quantification (typical range 0.01–1.00 % m/m).
• Application of the 1981 errata to ensure corrected/clarified procedural steps or values in the original text.

Typical use and users

Analytical and quality control laboratories in petrochemical and chemical manufacturing, fuel and solvent producers, regulatory testing bodies, and research laboratories analysing toluene purity and hydrocarbon contamination. Users include analytical chemists, laboratory managers and standards/quality personnel who must follow validated GC methods for hydrocarbon impurity quantification.

Related standards

This standard sits among other ISO documents for aromatic hydrocarbons and related test methods (see neighbouring ISO numbers in the same technical committee series, e.g. ISO 5277, ISO 5278, ISO 5281 and related analytical standards for aromatic hydrocarbons and density/physical property determinations). For catalogue and life‑cycle details see ISO listings for the ISO/TC 47 series.

Keywords

ISO 5279, toluene, hydrocarbon impurities, gas chromatography, GC, flame ionization detector, FID, internal standard, benzene, C8 aromatics, quantitative analysis, errata 1981, corrigendum.

FAQ

Q: What is this standard?

A: ISO 5279:1980 is an ISO method titled "Toluene — Determination of hydrocarbon impurities — Gas chromatographic method." The item referenced here is the 1980 standard together with the errata sheet issued in 1981 that corrects/clarifies the original text.

Q: What does it cover?

A: It describes a gas chromatographic procedure using an internal standard and FID detection to identify and quantify trace hydrocarbon impurities in toluene (typical measurement range ~0.01–1.00 % m/m). The 1981 errata provides authorised corrections to the printed 1980 edition.

Q: Who typically uses it?

A: Analytical chemists and QC laboratories in chemical, petrochemical and solvent-production industries, and regulatory or conformity assessment bodies that test toluene for hydrocarbon contaminants.

Q: Is it current or superseded?

A: The original ISO 5279:1980 is recorded in ISO's catalogue and later entered withdrawal status; users should verify the current catalogue entry before using it for regulatory or compliance work. The standard has been withdrawn in ISO lifecycle listings; consult ISO or national standards bodies for any newer or replacement methods.

Q: Is it part of a series?

A: Yes — it belongs to the set of ISO methods and test documents related to aromatic hydrocarbons and analytical procedures under ISO/TC 47. Neighboring and related ISO numbers address other aromatics and analytical properties (for example ISO 5277, ISO 5278, ISO 5281).

Q: What are the key keywords?

A: Toluene, hydrocarbon impurities, gas chromatography, internal standard, flame ionization detector, benzene, C8 aromatics, ISO 5279, errata 1981.