ISO 14184-1:2011

Name: ISO 14184-1:2011 — Textiles — Determination of formaldehyde — Part 1: Free and hydrolysed formaldehyde (water extraction method)
SKU: ISO 14184-1:2011
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Textiles — Determination of formaldehyde — Part 1: Free and hydrolysed formaldehyde (water extraction method)

Название (английский):

ISO 14184-1:2011

Textiles — Determination of formaldehyde — Part 1: Free and hydrolysed formaldehyde (water extraction method)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 5 августа 2011 г.
Издание:: ISO IS 14184 edition 2 version 1
ICS:: 59.080.01

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Описание (английский):

ISO 14184-1:2011 specifies a method for determining the amount of free formaldehyde and formaldehyde extracted partly through hydrolysis by means of a water extraction method. The method can be applied to the testing of textile samples in any form. The procedure is intended for use in the range of free and hydrolysed formaldehyde on the fabric between 16 mg/kg and 3 500 mg/kg when determined by this method. The lower limit is 16 mg/kg. Below this limit, the result is reported as "not detectable". A method for determination of released formaldehyde is given in ISO 14184-2:2011.

Abstract

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Стандарты, упомянутые в описании

Overview

ISO 14184-1:2011 - Textiles - Determination of formaldehyde - Part 1: Free and hydrolysed formaldehyde (water extraction method) specifies a standardized laboratory procedure to quantify free and hydrolysed formaldehyde in textiles using a water extraction followed by a colorimetric determination. The method is applicable to textile samples in any form and is designed for measurement in the range 16 mg/kg to 3 500 mg/kg. Results below 16 mg/kg are reported as "not detectable". This standard focuses on analytical accuracy, repeatability and reporting for formaldehyde present in fabrics, not on released (vapour) formaldehyde (see ISO 14184-2).

Key topics and technical requirements

Scope and limits: Intended for free and hydrolysed formaldehyde (water-extractable), measurement range 16–3 500 mg/kg; <16 mg/kg = not detectable.

Extraction principle: Formaldehyde is extracted from a weighed textile specimen with water at controlled temperature and time, then filtered for analysis.

Colorimetric determination: The extracted solution reacts with an acetylacetone (Nash) reagent to produce a yellow chromophore measured spectrophotometrically at 412 nm.

Calibration and standardization: Uses a standardized formaldehyde stock (approx. 1 500 mg/l) and a multi-point calibration curve; Annex A prescribes a sodium sulfite back-titration method for accurate stock standardization.

Apparatus & reagents: Requires spectrophotometer, water bath at 40 ± 2 °C, heat-resistant filters, acetylacetone reagent, and dimedone for confirmation tests.

Sample handling: Do not pre-condition specimens (to avoid altering formaldehyde content); typical extraction is 100 ml water per ~1 g specimen, with controlled shaking and filtration.

Quality controls: Includes blank reagent, blank specimen (to check discoloration), parallel tests, dilution guidance for high-concentration samples, and confirmation with dimedone to rule out interfering substances.

Applications

Routine textile testing laboratories for product quality and safety assessments.

Manufacturers and suppliers performing incoming/outgoing quality control on fabrics, garments and home textiles.

Regulatory/compliance testing where measurement of formaldehyde in textiles is required for consumer safety, certification or market access.

Research labs studying formaldehyde release, fabric treatments, and chemical finishes.

Related standards

ISO 14184-2:2011 - Determination of released formaldehyde (vapour absorption method).

Referenced standards used within the method: ISO 139 (conditioning), ISO 3696 (analytical water), ISO 4793 (filters).

Keywords: ISO 14184-1:2011, formaldehyde in textiles, water extraction method, free and hydrolysed formaldehyde, colorimetric determination, textile testing, Nash reagent.

ISO 14184-1:2011

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications

Who uses this standard

Related standards

Технические детали

ISO 14184-2:2011

Textiles — Determination of formaldehyde — Part 2: Released formaldehyde (vapour absorption method)

BS EN ISO 14184-2:2011

Textiles. Determination of formaldehyde. Released formaldehyde (vapour absorption method).

ISO 13926-1:2018

Pen systems — Part 1: Glass cylinders for pen-injectors for medical use

BS EN ISO 3696:1995

Water for analytical laboratory use. Specification and test methods.

ISO 4793:1980

Laboratory sintered (fritted) filters — Porosity grading, classification and designation