calibration of spectrophotometers designed for the determination of TRUE PROTEIN in raw cows', goats' and ewes' milk, with or without preservative (Note: only B ronopol and mercuric chloride can be used as preservatives)
→ Set no. 1: cows' or goats' milk (3 samples): 1 inseparable group of:
- 2 reconstituted samples, one rich in protein (R ≈ 36 g/kg), the other poor (P ≈ 25 g/kg).
- 1 control sample (whole raw milk containing 30-32 g protein/kg).
The calibration of the method should be linear and is fitted through two points R and P.
→ Set no. 2: cows' or goats' milk (4 samples): 1 inseparable group of:
- 3 reconstituted samples, one rich in protein (R ≈ 36 g/kg), one medium (M ≈ 30 g/kg), the other poor (P ≈ 25 g/kg).
- 1 control sample (whole raw milk containing 30-32 g protein/kg).
The additional median point is useful to detect a possible linearity defect and to correct it by a curvilinear fitting.
→ Set no. 3: ewes' milk and high contents milk: 1 inseparable group of:
- 3 reconstituted samples, one rich in protein (R ≈ 65 g/l), one medium (M ≈ 55 g/l), the other poor (P ≈ 45g/l).
- 1 control sample (whole raw milk containing 54-56 g protein/l).
SRMs are preserved with mercuric chloride (0.07 %) and Bronopol (0.02 %) for the control sample of set no. 3
in 30 ml screw-capped vials with airtight seals
monthly and on request (subject to availability), in insulated box with ice packs by express carrier (see regulation for shipping times)
For an order without annual subscription, send your order form before 4 p.m., otherwise packages can be sent the following day (valid from Monday to Wednesday) (except for countries outside UE - Outside EU, time before dispatch may take up 7 days, the time necessary to obtain customs documents)
- set no. 1 and no. 2: determined by many expert laboratories using the NF V 04-216 Amido Black method and checked by a group of expert laboratories using the ISO 8968-1 and 4|IDF 20-1 and 4 Kjeldahl method.
- set no.3: determined by a group of expert laboratories using the NF V 04-216 Amido Black method and checked by a group of expert laboratories using the ISO 8968-1 and 4|IDF 20-1 and 4 Kjeldahl method. The results obtained with these Amido Black SRMs are equivalent to what would be found with the Kjeldahl method [(TN-NPN) x 6.38]
| Month of dispatch | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec |
| Week | 52 | 4 | 8 | 13 | 17 | 21 | 26 | 30 | 34 | 39 | 43 | 47 |
| Annual subscription | Without subscription | |||
|---|---|---|---|---|
| Subscription (12 shipments / year) |
For each extra group every month | "extra dispatch in the course of the year (per group) | Per group | |
| Set no. 1 : cow or goat (3 milk samples) | 437.38 € | 103.48 € | 33.8 € | 46.76 € |
| Set no. 2 : cow or goat (4 milk samples) | 499.81 € | 124.29 € | 39.02 € | 54.57 € |
| Set no. 3 : ewe milk (4 milk samples) | 623.52 € | 155.04 € | 48.67 € | 68.06 € |
within 1 month of receiving invoice
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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
Accreditation no 1-5577, tests, no 1-2473 interlaboratory comparisons, scope available on www.cofrac.fr/en
