Fat in homogenized milk♦ - 2025

Proficiency testing

Home Proficiency testing Physico-chemistry - Fat in homogenized milk♦ - 2025

Introduction

The proficiency testings and criteria marked with an are covered by the « accréditation n° 1-2473, comparaisons interlaboratoires, portée disponible sur www.cofrac.fr »/« n° 1-2473 accreditation, interlaboratory comparisons, scope available on www.cofrac.fr », and detailed flexible scope available there


Methods / Analytes

fat by gravimetric and routine methods


Number of samples

one set for any method of:
-5 skimmed milk samples with fat ranging from 0 to 0.25 %
-5 semi-skimmed milk samples with fat ranging from 1.2 to 1.8 %
-5 whole milk samples with fat ranging from 2.8 to 3.5 %


Packaging

60 ml polyethylene screw-capped vials with airtight seals


Preservation

addition of Bronopol to the samples (final concentration: 0.02 %)


Dispatch

in insulated box with ice packs by express carrier (see regulation for shipping times)


Storage in the laboratory

at 4 (± 2) °C


Validity of the samples

testing must be carried out within 7 days after the date of dispatch


Calendar of dispatch :

 

Sample dispatch 2025/02/10 2025/06/10 2025/09/15 2025/11/24
Return of results to ACTALIA Cecalait 2025/02/19 2025/06/19 2025/09/24 2025/12/03

Subscription at least 10 days before each dispatch

Rates

Members Non-members
Registration fees per shipment 69.1 € 103.61 €
Participation fee per tested method 103.61 € 155.41 €


Special conditions :

  • For groups from 10 to 24 participating laboratories: 10 % discount,
  • For groups from 25 participating laboratories: 15 % discount

Payment conditions :

within 1 month of receiving invoice

Formulas

  • Butyrometric method
  • Extraction method




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Contact us

ACTALIA Cecalait

Rue de Versailles
BP 70129
39801 POLIGNY CEDEX
FRANCE

Tel : +33 (0)3 84 73 63 20
Fax : +33 (0)3 84 73 63 29

cecalait[at]actalia.eu

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