ISO 1388-6:1981
(Main)Ethanol for industrial use — Methods of test — Part 6: Test for miscibility with water
Ethanol for industrial use — Methods of test — Part 6: Test for miscibility with water
The principle of the procedure consists in addition of water to a test portion, under specified conditions, and examination for opalescence against a black background with side illumination, using a second Nessler cylinder containing water as the standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
Éthanol à usage industriel — Méthodes d'essai — Partie 6: Essai de miscibilité à l'eau
General Information
- Status
- Published
- Publication Date
- 31-Oct-1981
- Technical Committee
- ISO/TC 47 - Chemistry
- Drafting Committee
- ISO/TC 47 - Chemistry
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 29-Nov-2023
- Completion Date
- 14-Feb-2026
Relations
- Effective Date
- 06-Jun-2022
- Effective Date
- 15-Apr-2008
Overview
ISO 1388-6:1981, developed by the International Organization for Standardization (ISO), outlines the method for testing miscibility with water in ethanol for industrial use. This standard is a critical part of the ISO 1388 series, providing internationally recognized procedures to ensure the purity and quality of industrial ethanol. By specifying exact test methods, ISO 1388-6 supports industries in confirming that ethanol blends uniformly with water, a key quality indicator for various industrial processes.
Key Topics
- Test Principle: The standard involves adding water to a specified portion of ethanol under defined conditions, then observing the mixture for opalescence (cloudiness) against a black background under side illumination. A reference cylinder containing only water serves as the standard for comparison.
- Laboratory Setup: The procedure requires ordinary laboratory equipment, specifically two matched 100 ml Nessler cylinders.
- Sample Preparation: A defined volume of ethanol is mixed with water and brought to a specific temperature (about 20°C) before examination.
- Evaluation Criteria: The test result is determined by the presence or absence of opalescence, indicating whether the ethanol is fully miscible with water.
- Reporting: Results must include the dilution ratio and miscibility outcome, contributing to comprehensive quality documentation.
Applications
ISO 1388-6:1981 is widely utilized in industries where ethanol serves as a chemical intermediate, solvent, or processing aid. Key applications include:
- Industrial Quality Control: Ensuring batches of industrial ethanol meet miscibility requirements helps manufacturers avoid process disruptions and maintain product standards.
- Chemical Manufacturing: Miscibility tests are vital in formulations where ethanol acts as a carrier or diluent and must blend seamlessly with aqueous solutions.
- Regulatory Compliance: Adhering to ISO standards like 1388-6 helps organizations demonstrate compliance with international quality and safety expectations, supporting global trade and market acceptance.
- Product Development: R&D teams rely on standardized miscibility assessments to select ethanol sources and validate new formulations critical for performance and stability.
Related Standards
ISO 1388-6:1981 is part of a comprehensive suite of ethanol testing standards, ensuring a holistic approach to ethanol quality:
- ISO 1388-1: General guidelines for testing industrial ethanol.
- ISO 1388-2: Methods for detecting alkalinity or acidity to phenolphthalein.
- ISO 1388-3–5: Procedures for assessing carbonyl compounds and aldehyde content.
- ISO 1388-7–8: Methods for determining methanol content by photometric and colorimetric techniques.
- ISO 1388-9–12: Tests for esters, hydrocarbons, furfural, and permanganate time.
- These standards, together with ISO 1388-6, have replaced and updated the earlier ISO Recommendation R 1388-1970.
For organizations handling industrial ethanol, referencing the full ISO 1388 series is recommended for comprehensive quality assurance and regulatory alignment.
Keywords: ISO 1388-6, test for miscibility with water, ethanol for industrial use, industrial ethanol testing, ISO ethanol standards, Nessler cylinder method, quality control, chemical manufacturing standards, international standardization, water miscibility test.
Buy Documents
ISO 1388-6:1981 - Ethanol for industrial use — Methods of test — Part 6: Test for miscibility with water Released:11/1/1981
ISO 1388-6:1981 - Éthanol a usage industriel — Méthodes d'essai — Partie 6: Essai de miscibilité a l'eau Released:11/1/1981
ISO 1388-6:1981 - Éthanol a usage industriel — Méthodes d'essai — Partie 6: Essai de miscibilité a l'eau Released:11/1/1981
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Frequently Asked Questions
ISO 1388-6:1981 is a standard published by the International Organization for Standardization (ISO). Its full title is "Ethanol for industrial use — Methods of test — Part 6: Test for miscibility with water". This standard covers: The principle of the procedure consists in addition of water to a test portion, under specified conditions, and examination for opalescence against a black background with side illumination, using a second Nessler cylinder containing water as the standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
The principle of the procedure consists in addition of water to a test portion, under specified conditions, and examination for opalescence against a black background with side illumination, using a second Nessler cylinder containing water as the standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
ISO 1388-6:1981 is classified under the following ICS (International Classification for Standards) categories: 71.080.60 - Alcohols. Ethers. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 1388-6:1981 has the following relationships with other standards: It is inter standard links to ISO 15877-2:2003, ISO/R 1388:1970. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 1388-6:1981 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
International Standard 138816
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME~YHAPO~HA~ OPTAHM3Al&lR fl0 CTAH~APTH3ALWl.ORGANISATION INTERNATIONALE DE NORMALISATION
Ethanol for industrial use - Methods of test -
Part 6 : Test for miscibility with water
Partie 6 : Essai de miscibilitk 2 l’eau
Methanol 2 wage industriel - NIethodes d’essai -
First edition - 1981-11-01
UDC 661.722 : 543.862.1
Ref. No. ISO 1388/6-1981 (@l
Descriptors : industrial products, ethanols, tests, mixtures, water.
Price based on 2 pages
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards institutes (ISO member bedies). The work of developing Inter-
national Standards is carried out through ISO technical committees. Every member
body interested in a subject for which a technical committee has been set up has the
right to be represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council.
International Standard ISO 1388/6 was developed by Technical Committee ISO/TC 47,
Chemistry, and was circulated to the member bodies in February 1980.
lt has been approved by the member bodies of the following countries :
Germany, F. R. Romania
Australia
Austria Hungary South Africa, Rep. of
India
Belgium Switzerland
Thailand
Brazil Italy
Bulgaria Korea, Rep. of United Kingdom
China Netherlands USSR
Czechoslovakia Philippines
France Poland
No member body expressed disapproval of the document.
International Standards ISO 1388/1 to ISO 1388/12 cancel and replace ISO Recom-
mendation R 1388-1970, of which they constitute a technical revision.
International Organkation for Standardkation, 1981
Printed in Switzerland
ISO 1388/6-1981 (E)
INTERNATIONALSTANDARD
Ethanol for industrial use - Methods of test -
Part 6 : Test for miscibility with water
5 Procedure
1 Scope and field of application
This part of ISO 1388 s
...
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWlE~YHAPO,QHAFI OPTAHH3A~MR Il0 CTAH~APTH3AL&lM~RGANISATION INTERNATIONALE DE NORMALISATION
Éthanol à usage industriel - Méthodes d’essai -
Partie 6 : Essai de miscibilité à l’eau
Part 6 : Test for miscibifity with wa ter
Ethanol for industrial use - Methods of test -
Première édition - 1981-11-01
G:
Y
CDU 661.722 : 543.862.1 Réf. no : I§O 1388/6-1981 (F)
Descripteurs : produit industriel, éthanol, essai, mélange, eau.
Prix basé sur 2 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
correspondant. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO.
La Norme internationale ISO 1388/6 a été élaborée par le comité technique ISO/TC 47,
Chimie, et a été soumise aux comités membres en février 1980.
Les comités membres des pays suivants l’ont approuvée :
Corée, Rép. de Roumanie
Afrique du Sud, Rép. d’
Allemagne, R. F. France Royaume-Uni
Australie Hongrie Suisse
Autriche Inde Tchécoslovaquie
Italie Thaïlande
Belgique
Brésil Pays- Bas URSS
Bulgarie Philippines
Chine Pologne
Aucun comité membre ne l’a désapprouvée.
Les Normes internationales ISO X388/1 à ISO 1388/12 annulent et remplacent la
Recommandation ISO/R 1388-1970, dont elles constituent une révision technique.
Organisation internationale de normalisation, 1981
Imprimé en Suisse
ISO 1388/6-1981 (F)
NORME INTERNATIONALE
Éthanol à usage industriel - Méthodes d’essai -
Partie 6 : Essai de miscibilité à l’eau
5 Mode opératoire
1 Objet et domaine d’application
La présente partie de I’ISO 1388 spécifie un essai de miscibilité
5.1 Prise d’ess
...
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWlE~YHAPO,QHAFI OPTAHH3A~MR Il0 CTAH~APTH3AL&lM~RGANISATION INTERNATIONALE DE NORMALISATION
Éthanol à usage industriel - Méthodes d’essai -
Partie 6 : Essai de miscibilité à l’eau
Part 6 : Test for miscibifity with wa ter
Ethanol for industrial use - Methods of test -
Première édition - 1981-11-01
G:
Y
CDU 661.722 : 543.862.1 Réf. no : I§O 1388/6-1981 (F)
Descripteurs : produit industriel, éthanol, essai, mélange, eau.
Prix basé sur 2 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre intéressé par une étude a le droit de faire partie du comité technique
correspondant. Les organisations internationales, gouvernementales et non gouverne-
mentales, en liaison avec I’ISO, participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO.
La Norme internationale ISO 1388/6 a été élaborée par le comité technique ISO/TC 47,
Chimie, et a été soumise aux comités membres en février 1980.
Les comités membres des pays suivants l’ont approuvée :
Corée, Rép. de Roumanie
Afrique du Sud, Rép. d’
Allemagne, R. F. France Royaume-Uni
Australie Hongrie Suisse
Autriche Inde Tchécoslovaquie
Italie Thaïlande
Belgique
Brésil Pays- Bas URSS
Bulgarie Philippines
Chine Pologne
Aucun comité membre ne l’a désapprouvée.
Les Normes internationales ISO X388/1 à ISO 1388/12 annulent et remplacent la
Recommandation ISO/R 1388-1970, dont elles constituent une révision technique.
Organisation internationale de normalisation, 1981
Imprimé en Suisse
ISO 1388/6-1981 (F)
NORME INTERNATIONALE
Éthanol à usage industriel - Méthodes d’essai -
Partie 6 : Essai de miscibilité à l’eau
5 Mode opératoire
1 Objet et domaine d’application
La présente partie de I’ISO 1388 spécifie un essai de miscibilité
5.1 Prise d’ess
...
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