EN ISO 1736:2008 PDF

Dried milk and dried milk products - Determination of fat content - Gravimetric method (Reference method)(ISO 1736:2008)

Title (English):

EN ISO 1736:2008

Dried milk and dried milk products - Determination of fat content - Gravimetric method (Reference method)(ISO 1736:2008)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 22
Publication date:: October 15, 2008
Edition:: CEN EN 1736 edition 2 version 1
ICS:: 67.100.10

Document language:

enru

Delivery time:1–7 days

Price:74 €

Description (English):

ISO 1736|IDF 9:2008 specifies the reference method for the determination of the fat content of dried milk and dried milk products. The method is applicable to dried milk with a fat content of 40 % mass fraction or more, dried whole, dried partially skimmed, and dried skimmed milk, dried whey, dried buttermilk and dried butter serum. The method is not applicable when the powder contains hard lumps which do not dissolve in ammonia solution or free fatty acids in significant quantities.

Technical details

Technical committee: CEN/TC 302 - Milk and milk products - Methods of sampling and analysis
SKU: EN ISO 1736:2008

Abstract

Overview

EN ISO 1736:2008, developed by CEN and ISO, establishes the reference gravimetric method for determining the fat content in dried milk and dried milk products. Known as the Röse-Gottlieb method, this standard applies to a broad range of dried dairy products, such as dried whole milk, skimmed milk, partially skimmed milk, dried whey, buttermilk, butter serum, and products with fat content of 40% mass fraction or more. The method is not suitable for powders containing hard, insoluble lumps or significant levels of free fatty acids.

Precise fat content determination is essential for quality control, product consistency, and regulatory compliance within the dairy industry. EN ISO 1736:2008 provides an internationally recognized procedure, facilitating comparable and reliable results across laboratories and markets.

Key Topics

Scope and Applicability
- Applies to various dried milk products, including whole, skimmed, partially skimmed, whey, buttermilk, and butter serum powders.
- Targeted at products with a fat content of 40% mass fraction or above.
- Not applicable where powders contain undissolved lumps or high free fatty acids, as this may compromise accuracy.
Gravimetric Method (Röse-Gottlieb Principle)
- Extraction of fat from the test sample using ammonia, ethanol, diethyl ether, and light petroleum.
- Separation, evaporation, and weighing of the extracted fat to determine the fat percentage.
- Utilizes specific laboratory glassware compliant with related standards (e.g., Mojonnier-type extraction flasks).
Precision and Repeatability
- Outlines repeatability and reproducibility requirements to ensure results can be trusted within and between laboratories.
- Specifies when and how to carry out blank tests to account for residues or contaminants from reagents.
Reporting Requirements
- Stipulates detailed information to include in test reports, such as sampling methods, incidents, and correction for blank tests.

Applications

EN ISO 1736:2008 plays a critical role in the dairy industry, supporting:

Quality Control and Product Development
- Ensures that dried milk powders and related products meet declared fat content specifications, which is vital for product labeling and customer satisfaction.
Regulatory Compliance
- Enables manufacturers and laboratories to comply with national and international food safety and quality regulations by providing standardized methods of fat determination.
Trade and Export
- Provides a harmonized reference method recognized worldwide, essential for contracts and specifications in both domestic and international dairy trade.
Laboratory Accreditation and Proficiency Testing
- Laboratories following this standard can demonstrate compliance with ISO/IEC 17025 and other accreditation requirements for the scope of milk fat analysis.

Related Standards

ISO 707 | IDF 50 – Milk and milk products: Guidance on sampling techniques to ensure representative samples for analysis.
ISO 3889 | IDF 219 – Specifications for Mojonnier-type fat extraction flasks used in the gravimetric method.
ISO 835, ISO 1042, ISO 4788 – Laboratory glassware standards for pipettes, volumetric flasks, and measuring cylinders used in the procedure.
ISO 8262-3 | IDF 124-3 – Alternative methods (Weibull-Berntrop principle) for samples where EN ISO 1736:2008 is not suitable due to high free fatty acids or undissolved lumps.

By adhering to EN ISO 1736:2008, organizations in the dairy sector can ensure accurate fat content determination, enhance product quality, and maintain compliance with global standards in dried milk product testing.

Related standards

Standards mentioned in the description

Abstract

Overview

Key Topics

Scope and Applicability
- Applies to various dried milk products, including whole, skimmed, partially skimmed, whey, buttermilk, and butter serum powders.
- Targeted at products with a fat content of 40% mass fraction or above.
- Not applicable where powders contain undissolved lumps or high free fatty acids, as this may compromise accuracy.
Gravimetric Method (Röse-Gottlieb Principle)
- Extraction of fat from the test sample using ammonia, ethanol, diethyl ether, and light petroleum.
- Separation, evaporation, and weighing of the extracted fat to determine the fat percentage.
- Utilizes specific laboratory glassware compliant with related standards (e.g., Mojonnier-type extraction flasks).
Precision and Repeatability
- Outlines repeatability and reproducibility requirements to ensure results can be trusted within and between laboratories.
- Specifies when and how to carry out blank tests to account for residues or contaminants from reagents.
Reporting Requirements
- Stipulates detailed information to include in test reports, such as sampling methods, incidents, and correction for blank tests.

Applications

EN ISO 1736:2008 plays a critical role in the dairy industry, supporting:

Quality Control and Product Development
- Ensures that dried milk powders and related products meet declared fat content specifications, which is vital for product labeling and customer satisfaction.
Regulatory Compliance
- Enables manufacturers and laboratories to comply with national and international food safety and quality regulations by providing standardized methods of fat determination.
Trade and Export
- Provides a harmonized reference method recognized worldwide, essential for contracts and specifications in both domestic and international dairy trade.
Laboratory Accreditation and Proficiency Testing
- Laboratories following this standard can demonstrate compliance with ISO/IEC 17025 and other accreditation requirements for the scope of milk fat analysis.

Related Standards

ISO 707 | IDF 50 – Milk and milk products: Guidance on sampling techniques to ensure representative samples for analysis.
ISO 3889 | IDF 219 – Specifications for Mojonnier-type fat extraction flasks used in the gravimetric method.
ISO 835, ISO 1042, ISO 4788 – Laboratory glassware standards for pipettes, volumetric flasks, and measuring cylinders used in the procedure.
ISO 8262-3 | IDF 124-3 – Alternative methods (Weibull-Berntrop principle) for samples where EN ISO 1736:2008 is not suitable due to high free fatty acids or undissolved lumps.

EN ISO 1736:2008 PDF

Technical details

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

Abstract

Overview

Key Topics

Applications

Related Standards

Related standards

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