Livsmedelsteknik

Kommittébeteckning: SIS/TK 413 (Provning av flytande och gasformiga bränslen)
Källa: CEN
Svarsdatum: den 21 okt 2021
Se merSe mindre
 

This document specifies a procedure for the simultaneous determination of 2-MCPD esters (bound 2-MCPD), 3‐MCPD esters (bound 3‐MCPD) and glycidyl esters (bound glycidol) in a single assay, based on acid catalysed ester cleavage and derivatization of cleaved (free) analytes with phenylboronic acid (PBA) prior to GC/MS analysis.
This document is applicable to solid and liquid fats and oils. For all three analytes the limit of quantification (LOQ) is 0,1 mg/kg and the limit of detection (LOD) is 0,03 mg/kg.

Kommittébeteckning: SIS/TK 413 (Provning av flytande och gasformiga bränslen)
Källa: CEN
Svarsdatum: den 21 okt 2021
Se merSe mindre
 

This part of ISO 18363 describes a procedure for the indirect determination of 3-MCPD esters (bound 3-MCPD) and possible free 3-MCPD after alkaline catalysed ester cleavage and derivatization with phenylboronic acid (PBA). Furthermore, this part of ISO 18363 enables the indirect determination of
glycidyl esters (bound glycidol) under the assumption that no other substances are present that react at room temperature with inorganic chloride to generate 3-MCPD.
This part of ISO 18363 is applicable to solid and liquid fats and oils. Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this part of ISO 18363.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 16 nov 2021
Se merSe mindre
 

This document specifies a method to determine the influence of factory-made cement based products on the odour, flavour, colour, turbidity and total organic carbon (TOC) of test waters after contact with the products.
This document is applicable to factory-made cement based products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes, etc. intended to be used for the transport and storage of water for human consumption, including raw water used for the production of drinking water.
NOTE Tests with the specified test water will not necessarily be representative of materials used in different kinds of waters and especially very soft waters.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 16 nov 2021
Se merSe mindre
 

This document specifies a method to determine the migration of substances from factory-made cement based products into test waters after contact with the products.
This document is applicable to factory-made cement based, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes, etc., intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water.
NOTE Tests with the specified test water will not necessarily be representative of materials used in different kinds of waters and especially very soft waters.

Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: ISO
Svarsdatum: den 1 dec 2021
Se merSe mindre
 

This document provides general requirements and performance criteria for the determination of purity of organic compounds through the application of solution state proton (1H) quantitative nuclear magnetic resonance (qNMR) spectroscopy using an internal standard method.
This document can be applied to functional compounds, natural toxins, food additives, and pesticides.
This document is applicable to the users pursuing metrological traceability of the measurement results.