DIN 50009 2021-01 PDF

Full title and description

STB DIN 50009:2021-01 — Textiles — Determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol‑isomers and pentachlorophenol content. This national/adopted version reproduces the DIN procedure for the identification and quantification of chlorophenol compounds in textile materials.

Abstract

This standard specifies analytical procedures for detecting and quantifying chlorophenol substances (including pentachlorophenol and various mono‑, di‑, tri‑ and tetra‑chlorophenol isomers) in textile fibres, yarns, fabrics and textile articles. The methods are based on chromatographic separation and mass‑selective detection (GC‑MS) and cover sample preparation, extraction, measurement and reporting requirements. The DIN procedure has since been incorporated and updated in the European EN procedure (see replacement standard).

General information

• Status: Withdrawn / replaced (superseded by DIN EN 17134‑2:2023).
• Publication date: 2021‑01.
• Publisher: Deutsches Institut für Normung (DIN) / national adoption indicated by STB prefix.
• ICS / categories: 59.080.01 (Textiles in general).
• Edition / version: 2021‑01 (edition date as indicated in the designation).
• Number of pages: 34 pages.

Scope

Applies to determination of chlorophenol‑based preservatives and residues (pentachlorophenol and chlorophenol isomers) present in or released from salts/esters in textile materials and related components. The procedures cover sampling, sample preparation and extraction, chromatographic separation and detection (typically GC with mass selective detection), and calculation/reporting of results for fibres, fabrics, coated/printed textiles and associated non‑textile parts where relevant. The methodology of DIN 50009 has been harmonized into the EN framework (DIN EN 17134‑2).

Key topics and requirements

• Target analytes: pentachlorophenol (PCP) and isomers of tetra‑, tri‑, di‑ and monochlorophenols.
• Sample preparation and extraction procedures appropriate for textile matrices (fibres, yarns, fabrics, coatings, prints, and some non‑textile components).
• Chromatographic separation and identification/quantification using gas chromatography with mass selective detection (GC‑MS) or equivalent validated methods.
• Performance/validation criteria: calibration, recovery checks, limits of detection/quantification, quality control and use of reference materials where applicable.
• Reporting requirements: units, calculation of concentrations (mass per mass), specification of sample type, preparation details and measurement uncertainty.

Typical use and users

Used by textile testing laboratories, chemical compliance teams, product safety and quality departments, regulatory authorities, and environmental/chemical auditors to demonstrate compliance with chemical‑restriction lists and to screen for banned or restricted chlorophenol preservatives and residues in textile products. The method is cited in industry restricted‑substance frameworks and supplier compliance guidance as an accepted analytical procedure.

Related standards

DIN EN 17134‑2:2023‑09 (Textiles — Determination of biocide additives — Part 2: Chlorophenol‑based preservatives, GC method) — this EN standard replaces DIN 50009:2021 and harmonizes the method at European level. Other related methods referenced in industry guidance include EN/ISO methods for chlorophenols and complementary standards for sample extraction and chromatographic analysis (for example EN ISO provisions cited in chemical‑management lists).

Keywords

chlorophenols, pentachlorophenol (PCP), tetrachlorophenol, trichlorophenol, dichlorophenol, monochlorophenol, textiles, GC‑MS, analytical method, restricted substances, DIN 50009, DIN EN 17134‑2.

FAQ

Q: What is this standard?

A: STB DIN 50009:2021‑01 is the national/adopted presentation of DIN 50009 (2021) — an analytical standard for determining chlorophenol substances in textiles.

Q: What does it cover?

A: It covers sample handling, extraction and chromatographic measurement (commonly GC‑MS) and reporting for pentachlorophenol and chlorophenol isomers in textile materials and relevant components. The method concept was carried forward into DIN EN 17134‑2:2023.

Q: Who typically uses it?

A: Accredited textile and chemical testing laboratories, compliance officers in brands and manufacturers, regulatory bodies and auditors assessing conformity with restricted‑substance lists and chemical safety requirements. Industry chemical lists reference this method as an accepted analytical approach.

Q: Is it current or superseded?

A: DIN 50009:2021 is listed as withdrawn/replaced; the current harmonized method is DIN EN 17134‑2:2023 (which replaces DIN 50009:2021). Users should apply the EN standard for the latest, harmonized procedure.

Q: Is it part of a series?

A: Yes — the subject of chlorophenol and biocide additive determination is handled in the EN 17134 series (part 2 specifically for chlorophenol‑based preservatives). DIN 50009 was the earlier national DIN document aligned with this series before being superseded by the EN version.

Q: What are the key keywords?

A: Chlorophenols, PCP, GC‑MS, textile testing, biocide additives, restricted substances, DIN 50009, DIN EN 17134‑2.