ISO 4211:1979 PDF

Name: ISO 4211:1979 — Furniture — Assessment of surface resistance to cold liquids
SKU: ISO 4211:1979
Price: 25 EUR
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Furniture — Assessment of surface resistance to cold liquids

Название (английский):

ISO 4211:1979

Furniture — Assessment of surface resistance to cold liquids

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 1 сентября 1979 г.
Издание:: ISO IS 4211 edition 1 version 1
ICS:: 97.140

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Описание (английский):

The specified method applies to surfaces of finished furniture or test panels of the same material and finished in the identical manner as the finished furniture with a size sufficient to meet the requirements of the test. The type and number of test liquids and the test periods can be selected from the tables in clause 5 and in the annex. The test results are assessed in terms of a descriptive numerical rating code.

Abstract

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Overview

ISO 4211:1979 is an international standard developed by the International Organization for Standardization (ISO) that defines a method for assessing the surface resistance of finished furniture to cold liquids. This standard ensures consistent evaluation of how furniture surfaces react to various household and workplace liquids, focusing on durability and maintenance of aesthetic qualities when exposed to potential liquid damage. Applicable to both finished furniture surfaces and test panels made from the same materials and finish, ISO 4211:1979 provides a reliable framework for quality control and product development within the furniture industry.

Key Topics

Scope and Application ISO 4211:1979 applies to surfaces of finished furniture or matching test panels with adequate size for testing. It covers the use of selected liquids, test durations, and environmental conditions to simulate exposure to everyday cold liquids.

Test Liquids The standard includes a comprehensive list of typical liquids such as:

Distilled water
Coffee and tea
Juices (e.g., blackcurrant)
Cleaning agents and detergents
Acetone and ethanol
Oils, disinfectants, and alkalis Each liquid is prepared or conditioned to maintain consistent test results.

Test Procedure A liquid-saturated filter paper is placed on the test surface and covered with a glass basin for a specified period varying from immediate removal to several days, mimicking real-life accidental spills. After exposure, the surface is cleaned and inspected for any damage like discoloration, lustre change, blistering, or surface degradation.

Assessment and Rating System Visual inspection is conducted under standardized lighting conditions, and damage is rated numerically from 5 (no visible change) to 1 (severe damage with surface material removal). Multiple observers can rate the test areas to ensure accuracy.

Environmental Conditioning Surfaces must be aged and conditioned at 23 ± 2 °C with 50 ± 5% relative humidity before testing to simulate real ambient conditions.

Reporting Detailed test reports include test conditions, liquid types, durations, results, any deviations from the standard, and conclusions related to compliance with product requirements.

Applications

Furniture Manufacturing Quality Control Helps manufacturers assess and improve the surface resistance of their products to cold liquid exposure, ensuring long-lasting finishes and customer satisfaction.

Material and Finish Development Assists in the selection and development of coating materials and surface treatments to increase resistance against household liquids such as coffee, juice, and cleaning agents.

Product Certification Enables independent testing bodies to certify furniture surfaces against liquid damage standards to support marketing claims and warranty conditions.

Consumer Protection Guides purchasers and suppliers in setting performance specifications and expectations related to durability of furniture surfaces in real-life use.

Related Standards

ISO 1065 – Detailing methods for determining cloud points of aqueous solutions, referenced for cleansing agent preparation in ISO 4211.

ISO/TC 136 Furniture Standards – Covers various furniture testing protocols including strength, safety, and surface properties.

International Furniture Industry Testing Methods – Other methods complementing liquid resistance assessments including heat resistance, abrasion, and stain resistance.

ISO 4211:1979 is essential for evaluating and assuring the quality and durability of furniture surfaces exposed to common cold liquids. By applying this standard, furniture producers, developers, and quality testers can maintain high standards of product performance and enhance consumer confidence.

ISO 4211:1979 PDF

Abstract

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Overview

Key Topics

Applications

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