ISO 758:1976
(Main)Liquid chemical products for industrial use — Determination of density at 20 degrees C
Liquid chemical products for industrial use — Determination of density at 20 degrees C
The principle of the specified method of reference consists in the determination of the mass of a volume of the substance at 20 °C which is contained in a pyknometer, and the determination of the capacity of pyknometer by measuring the mass of an adequate volume of water at 20 °C. Calculation of the density by division of the mass of substance by the capacity of pyknometer. - Replaces ISO Recommendation R 758-1968.
Produits chimiques liquides à usage industriel — Détermination de la masse volumique à 20 degrés C
Tekoči kemijski proizvodi za industrijsko uporabo - Določanje gostote pri 20 °C
General Information
- Status
- Published
- Publication Date
- 31-Oct-1976
- Technical Committee
- ISO/TC 47 - Chemistry
- Drafting Committee
- ISO/TC 47 - Chemistry
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 20-Oct-2023
- Completion Date
- 14-Feb-2026
Relations
- Effective Date
- 29-Apr-2026
Overview
ISO 758:1976 sets out an internationally recognized reference method for determining the density of liquid chemical products for industrial use at 20°C. Developed by the International Organization for Standardization (ISO), this standard replaces ISO Recommendation R 758-1968 and is widely accepted in the chemical industry. Accurate density measurements are essential for quality control, specification verification, and safe handling of chemical substances during processing and distribution.
The method specified in ISO 758:1976 uses a pyknometer flask and precise mass measurements to calculate the density of a liquid at a controlled temperature, ensuring consistent and reproducible results across laboratories and industrial settings.
Key Topics
- Density Determination: The central focus is accurate measurement of a liquid’s mass per unit volume at 20°C.
- Pyknometric Analysis: Utilizes a calibrated pyknometer flask to precisely define measurement volume.
- Temperature Control: All measurements are carried out at a standardized temperature (20°C) to ensure comparability.
- Buoyancy Corrections: The method accounts for air buoyancy effects on mass measurements.
- Reporting Requirements: Specifies details to be included in test reports for traceability and reproducibility.
Applications
ISO 758:1976 is relevant for a wide range of industrial and laboratory applications, including:
- Quality Control: Ensures that liquid chemical products meet specified density requirements, contributing to product consistency and safety.
- Specification Compliance: Provides a reliable basis for certifying product characteristics in accordance with buyer and regulatory requirements.
- Process Engineering: Facilitates proper dosing, mixing, and process design by providing accurate density values for liquid raw materials and intermediates.
- Research and Development: Enables standardized measurement methods for developing and comparing new chemical products.
- Trade and Regulatory Compliance: Supports international and domestic trade by aligning testing practices with recognized ISO standards.
Related Standards
- ISO 3507: Pyknometers: Specifies the requirements for pyknometers, the key apparatus used in the density measurement method described in ISO 758:1976.
- ISO/TC 47: Chemistry and laboratory standards relevant to the chemical industry and laboratory testing.
- General Standards on Chemical Analysis: Other ISO standards addressing analytical methods, physical property measurement, and laboratory practices.
- Industry-specific Regulations: National and regional regulations may refer to ISO 758:1976 for compliance in chemical safety and labeling.
Conclusion
ISO 758:1976 provides a clear, standardized method for determining the density of liquid chemicals at 20°C using pyknometry. By adhering to this standard, industries can achieve accurate, reproducible, and internationally accepted results, supporting quality assurance, compliance, and efficient industrial processes. Organizations handling industrial chemicals are strongly encouraged to integrate ISO 758:1976 into their laboratory and quality management systems to ensure reliable density determinations.
Buy Documents
ISO 758:1976 - Liquid chemical products for industrial use — Determination of density at 20 degrees C Released:11/1/1976
ISO 758:1976 - Produits chimiques liquides a usage industriel — Détermination de la masse volumique a 20 degrés C Released:11/1/1976
ISO 758:1976 - Produits chimiques liquides a usage industriel — Détermination de la masse volumique a 20 degrés C Released:11/1/1976
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Frequently Asked Questions
ISO 758:1976 is a standard published by the International Organization for Standardization (ISO). Its full title is "Liquid chemical products for industrial use — Determination of density at 20 degrees C". This standard covers: The principle of the specified method of reference consists in the determination of the mass of a volume of the substance at 20 °C which is contained in a pyknometer, and the determination of the capacity of pyknometer by measuring the mass of an adequate volume of water at 20 °C. Calculation of the density by division of the mass of substance by the capacity of pyknometer. - Replaces ISO Recommendation R 758-1968.
The principle of the specified method of reference consists in the determination of the mass of a volume of the substance at 20 °C which is contained in a pyknometer, and the determination of the capacity of pyknometer by measuring the mass of an adequate volume of water at 20 °C. Calculation of the density by division of the mass of substance by the capacity of pyknometer. - Replaces ISO Recommendation R 758-1968.
ISO 758:1976 is classified under the following ICS (International Classification for Standards) categories: 71.040.40 - Chemical analysis. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 758:1976 has the following relationships with other standards: It is inter standard links to EN ISO 2738:2026. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 758:1976 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)
SLOVENSKI STANDARD
01-avgust-1995
7HNRþLNHPLMVNLSURL]YRGL]DLQGXVWULMVNRXSRUDER'RORþDQMHJRVWRWHSULƒ&
Liquid chemical products for industrial use -- Determination of density at 20 degrees C
Produits chimiques liquides à usage industriel -- Détermination de la masse volumique à
20 degrés C
Ta slovenski standard je istoveten z: ISO 758:1976
ICS:
71.040.40 Kemijska analiza Chemical analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
~~
INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXLIYHAPOfiHAJl OPTAHM3AUWl I-IO CTAHLIAPTM3AUMM l ORGANIZATION INTERNATIONALE DE NORMALISATION
-
Liquid chemical products for industrial use - Determination
of density at 20 “C
Prod&s chimiques liquides ;i usage industriel- De’termination de la masse volumique ;i 20 “C
First edition - 1976-11-15
UDC 531.756.1 : 542.3
Ref. No. IS0 758-1976 (E)
Descriptors : chemical compounds, liquids, physical tests, density (mass/volume), measurement, pyknometric analysis.
Price based on 2 pages
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 member bodies). The work of developing
International Standards is carried out through IS0 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.
adopted technical committees are circu lated
Draft International Standards by the
their acceptance as lnternat ional
to the member bodies for approval before
Standards by the IS0 Council.
Prior to 1972, the results of the work of the technical committees were published
as IS0 Recommendations; these documents are in the process of being transformed
into International Standards. As part of this process, Technical Committee
lSO/TC 47, Chemistry, has reviewed IS0 Recommendation R 758-1968 and found
it technically suitable for transformation. International Standard IS0 758 therefore
replaces IS0 Recommendation R 758-1968, to which it is technically identical.
IS0 Recommendation R 758 has been approved by the member bodies of the
following countries :
Austra I ia Germany Poland
Austria Hungary Portugal
Belgium India Romania
Chile Israel Spain
Colombia Italy United Kingdom
Czechoslovakia ’ Japan U.S.S.R.
Egypt, Arab Rep. of Korea, Rep. of Yugoslavia
France Netherlands
The m
ember body of the following country had ex pressed disapproval of the
Recom mendation o n technical grounds
U.S.A.
The member body of the following country disapp roved the transformation
of th e Recommendation into an Inter
...
~~
INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXLIYHAPOfiHAJl OPTAHM3AUWl I-IO CTAHLIAPTM3AUMM l ORGANIZATION INTERNATIONALE DE NORMALISATION
-
Liquid chemical products for industrial use - Determination
of density at 20 “C
Prod&s chimiques liquides ;i usage industriel- De’termination de la masse volumique ;i 20 “C
First edition - 1976-11-15
UDC 531.756.1 : 542.3
Ref. No. IS0 758-1976 (E)
Descriptors : chemical compounds, liquids, physical tests, density (mass/volume), measurement, pyknometric analysis.
Price based on 2 pages
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 member bodies). The work of developing
International Standards is carried out through IS0 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.
adopted technical committees are circu lated
Draft International Standards by the
their acceptance as lnternat ional
to the member bodies for approval before
Standards by the IS0 Council.
Prior to 1972, the results of the work of the technical committees were published
as IS0 Recommendations; these documents are in the process of being transformed
into International Standards. As part of this process, Technical Committee
lSO/TC 47, Chemistry, has reviewed IS0 Recommendation R 758-1968 and found
it technically suitable for transformation. International Standard IS0 758 therefore
replaces IS0 Recommendation R 758-1968, to which it is technically identical.
IS0 Recommendation R 758 has been approved by the member bodies of the
following countries :
Austra I ia Germany Poland
Austria Hungary Portugal
Belgium India Romania
Chile Israel Spain
Colombia Italy United Kingdom
Czechoslovakia ’ Japan U.S.S.R.
Egypt, Arab Rep. of Korea, Rep. of Yugoslavia
France Netherlands
The m
ember body of the following country had ex pressed disapproval of the
Recom mendation o n technical grounds
U.S.A.
The member body of the following country disapp roved the transformation
of th e Recommendation into an International Standard :
Netherlands
0 International Organization for Standardization, 1976 l
Printed in Switzerland
INTERNATIONAL STANDARD IS0 758-1976 (E)
Liquid chemical products for industrial use - Determination
of density at 20 “C
6.2 Empty, clean and dry the flask, fill it wi
...
NORME INTERNATIONALE~ 758
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION +lElK~YHAPOAHAJl OPrAHM3ALWI l-I0 CTAHAAPTM3AWiki *ORGANISATION INTERNATIONALE DE NORMALISATION
Produits chimiques liquides à usage industriel - Détermination
de la masse volumique à 20 “C
Determination of density at 20 “C
Liquid chemical products for industrial use -
Première édition - 1976-I 1-15
CDU 531.756.1 : 542.3 Réf. no : ISO 758-1976 (F)
Descripteurs : produit chimique, liquide, essai physique, masse volumique, mesurage, méthode pycnométrique.
Prix basé sur 2 pages
AVANT-PROPOS
L’ISO (Organisation internationale de normalisation) est une fedération mondiale
d’organismes nationaux de normalisation (comités membresde 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 partiedu comité technique
correspondant.
Les organisations internationales, gouvernementales et non
gouvernementales, 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 internationales par le Conseil de I’ISO.
Avant 1972, les résultats des travaux des comités techniques étaient publiés
comme recommandations ISO; ces documents sont en cours de transformation
en Normes internationales. Compte tenu de cette procédure, le comité technique
ISO/TC 47, Chimie, après examen, est d’avis que la Recommandation
ISO/R 758-1968 peut, du point de vue technique, être transformée. La présente
Norme internationale remplace donc la Recommandation ISO/R 7584968, à
laquelle elle est techniquement identique.
Les comités membres des pays suivants avaient approuvé la Recommandation
ISO/R 758.
Allemagne Égypte, Rép. arabe d’ Pologne
Portugal
Australie France
Roumanie
Autriche Hongrie
Royaume-Uni
Belgique Inde
Tchécoslovaquie
Chili Israël
U.R.S.S.
Colombie Italie
Yougoslavie
Corée, Rép. de Japon
Espagne Pays-Bas
Le comité membre du pays suivant l’avait désapprouvée pour des raisons
techniques :
U.S.A.
Le comité membre du pays suivant a désapprouvé la transformation de la
recommandation en Norme internationale :
Pays-Bas
0 Organisation internationale de normalisation, 1976 l
Imprimé en Suisse
ISO 758-1976 (F)
NORME INTERNATIONALE
Produits chimiques liquides à usage industriel - Détermination
de la masse volumique à 20 “C
6.2 Vider, laver et sécher la fiole, la remplir avec le produit
1 OBJET ET DOMAINE D’APPLICATION
en examen et déterminer, de la même manière, la masse
La présente Norme internationale
...
NORME INTERNATIONALE~ 758
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION +lElK~YHAPOAHAJl OPrAHM3ALWI l-I0 CTAHAAPTM3AWiki *ORGANISATION INTERNATIONALE DE NORMALISATION
Produits chimiques liquides à usage industriel - Détermination
de la masse volumique à 20 “C
Determination of density at 20 “C
Liquid chemical products for industrial use -
Première édition - 1976-I 1-15
CDU 531.756.1 : 542.3 Réf. no : ISO 758-1976 (F)
Descripteurs : produit chimique, liquide, essai physique, masse volumique, mesurage, méthode pycnométrique.
Prix basé sur 2 pages
AVANT-PROPOS
L’ISO (Organisation internationale de normalisation) est une fedération mondiale
d’organismes nationaux de normalisation (comités membresde 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 partiedu comité technique
correspondant.
Les organisations internationales, gouvernementales et non
gouvernementales, 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 internationales par le Conseil de I’ISO.
Avant 1972, les résultats des travaux des comités techniques étaient publiés
comme recommandations ISO; ces documents sont en cours de transformation
en Normes internationales. Compte tenu de cette procédure, le comité technique
ISO/TC 47, Chimie, après examen, est d’avis que la Recommandation
ISO/R 758-1968 peut, du point de vue technique, être transformée. La présente
Norme internationale remplace donc la Recommandation ISO/R 7584968, à
laquelle elle est techniquement identique.
Les comités membres des pays suivants avaient approuvé la Recommandation
ISO/R 758.
Allemagne Égypte, Rép. arabe d’ Pologne
Portugal
Australie France
Roumanie
Autriche Hongrie
Royaume-Uni
Belgique Inde
Tchécoslovaquie
Chili Israël
U.R.S.S.
Colombie Italie
Yougoslavie
Corée, Rép. de Japon
Espagne Pays-Bas
Le comité membre du pays suivant l’avait désapprouvée pour des raisons
techniques :
U.S.A.
Le comité membre du pays suivant a désapprouvé la transformation de la
recommandation en Norme internationale :
Pays-Bas
0 Organisation internationale de normalisation, 1976 l
Imprimé en Suisse
ISO 758-1976 (F)
NORME INTERNATIONALE
Produits chimiques liquides à usage industriel - Détermination
de la masse volumique à 20 “C
6.2 Vider, laver et sécher la fiole, la remplir avec le produit
1 OBJET ET DOMAINE D’APPLICATION
en examen et déterminer, de la même manière, la masse
La présente Norme internationale
...
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