British Standards Institution

Source:: ISO
Committee:: AW/307 - Oilseeds, animal and vegetable fats and oils and their by-products
Categories:: Information management | Standardization. General rules
Comment period start date:: 03/01/2025
Comment period end date:: 13/02/2025

Comment by:

13th Feb

Scope

This document specifies a test method for the determination of the total chloride content of fats and oils based on combustion/micro-coulometric titration.

Purpose

Currently, there are no methods available to quantify the chlorides present in edible oils. The existing official methods for the measurement of chloride content are solely for mineral oils or petroleum derivatives, such as American Society for Testing and Materials (ASTM) [ASTM] D3230, ASTM D6470- 6 and ASTM D4929-7], US Environmental Protection Agency (EPA) [Method; EPA 9075.8] and the Universal Oil Products (UOP) [Method UOP 779]. At the recent FOSFA International Technical Committee meeting, it was emphasised that chloride content is becoming an increasingly important contractual requirement due to rising concerns about the presence of 3-monochloro-1,2-propanediol (3-MCPD), which is potentially carcinogenic, in edible oils. Various studies have demonstrated a direct relationship between the levels of 3-MCPD and the total chloride content (TCC) in edible oils. An increasing demand for edible oils such as crude palm oil with a lower chloride content to help in reducing the formation of 3-MCPD is seen. Realising the importance of determining the chloride content in edible oils, an analytical method needs to be established by taking into account the distinct chemical compositions and physical properties of mineral and edible oils. Establishment of the current method to quantify chloride content in edible oils would benefit the oils and fats industry in monitoring the chloride level of the feed oils, which in turn would facilitate the reduction of 3-MCPD formation in refined oils.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

03/01/2025

Proposal end date:

13/02/2025

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/NP 25671 Animal and Vegetable Fats and Oils — Determination of Total Chloride Content

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