ISO 6836:1983 PDF

Name: ISO 6836:1983 — Surface active agents — Mercerizing agents — Evaluation of the activity of wetting products for mercerization by determination of the shrinkage rate of cotton
SKU: ISO 6836:1983
Price: 25 EUR
Availability: InStock

Surface active agents — Mercerizing agents — Evaluation of the activity of wetting products for mercerization by determination of the shrinkage rate of cotton

Название (английский):

ISO 6836:1983

Surface active agents — Mercerizing agents — Evaluation of the activity of wetting products for mercerization by determination of the shrinkage rate of cotton

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 5
Дата публикации:: 1 февраля 1983 г.
Издание:: ISO IS 6836 edition 1 version 1
ICS:: 71.100.40

Тип поставки:

Full version75 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 раб. дн. (перевод)

Цена:75 €

Описание (английский):

The test is carried out in the following way: Immersion in the liquor containing the agent being studied of a hank of smooth cotton held by a hook and with a load fixed on the end of it. determination of the shrinkage of the hank at different intervals of time using one of the tow pieces of apparatus described.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 6836:1983 specifies a laboratory method to evaluate the activity of wetting products for mercerization (mercerizing agents) by measuring the shrinkage rate of cotton yarn hanks when exposed to caustic (sodium hydroxide) mercerizing baths. The standard is aimed at testing surface active agents used to improve penetration of mercerizing liquor into cellulose fibres, a key factor that controls effectiveness and processing time in mercerizing operations.

Key topics and requirements

Scope: Method applies only to mercerizing/causticizing baths and wetting products used in those baths.

Test principle: Immerse a prepared hank of smooth cotton with a fixed weight attached, then record longitudinal shrinkage at timed intervals; the speed and extent of shrinkage indicate wetting effectiveness.

Sample preparation:

Test hank: wind on a 1 m perimeter winder to obtain a hank mass of 1 ± 0.2 g, fold to approximately 24 cm.
Conditioning: store hanks for at least 24 h at 20 ± 2 °C and 65% ± 2% RH before testing.

Reagents and solution:

Mercerizing liquor: sodium hydroxide solution prepared as described in the standard (example: dissolve 270 g NaOH in 1 litre water as given).
Use analytical-grade reagents and distilled or equivalent water.

Apparatus:

Two accepted measuring setups: Hintzmann apparatus (millimetre scale and weight) or a servo apparatus (graduated disc with moving needle).
Typical weights mentioned: a small weight 10 ± 0.1 g and a counterweight about 50 g (selection depends on yarn type and must be reported).

Test procedure and data:

Prepare solution immediately before testing (first solution used within 15 minutes).
Measure shrinkage at 10 s intervals up to 90 s, and finally at 300 s (5 min); perform five series and use arithmetic means.
Results expressed as rate of shrinkage (mm/time), percentage shrinkage, and time to reach 50% of total shrinkage (determined via plotting/logarithmic scale).

Applications and users

Textile testing and quality control laboratories assessing mercerizing wetting agents.

Chemical manufacturers of surfactants and mercerizing auxiliaries evaluating product performance.

Textile mills optimizing mercerizing process parameters to reduce cycle time and improve fabric uniformity.

Standards organizations and R&D groups comparing wetting efficiency across formulations or yarn batches.

Related standards

ISO 607 (sample division for surface active agents and detergents) is referenced within ISO 6836:1983.

Developed by ISO/TC 91 (Surface active agents).

Keywords: ISO 6836:1983, mercerizing agents, surface active agents, wetting products, shrinkage rate, cotton, mercerization testing, Hintzmann apparatus, servo apparatus, sodium hydroxide solution.

ISO 6836:1983 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

SIST EN ISO 6076:2023

Adhesives - Installation of floor coverings, wood flooring, levelling compounds and tiles - Specification of…

ISO 8689-1:2000

Water quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological qu…

ISO/ASTM51540-04(2012)

Standard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)

ISO/ASTM51204-04

Standard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)

ISO/ASTM51431-05

Standard Practice for Dosimetry in Electron Beam and X-Ray (Bremsstrahlung) Irradiation Facilities for Food P…

ISO/ASTM52628-20e1

Standard Practice for Dosimetry in Radiation Processing

ISO/ASTM52921-13(2019)

Standard Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies

ISO/ASTMTR52917-EB

Additive Manufacturing — Round Robin Testing — General Guidelines