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State standard of the republic of uzbekistanBog'liq 27608-разблокирован DALINA, Abdulla Qahhor. Paqir qo\'mondonlariISO 27608:2010(E)
© ISO 2010 – All rights reserved
5
Annex A
(informative)
Results of an interlaboratory trial
An international collaborative trial involving 34 laboratories from nine countries analysing six samples of oils
and fats was organized by DIN/DGF. The samples were analysed by three groups of laboratories:
Group A
using automatic instruments PFX 880/L, PFX 950 or PFX 995
3)
;
Group B
using automatic instruments LICO 200, LICO 300, LICO 400 or LICO 500
2)
;
Group C
using the manual instruments Model F or Model E
4)
according to ISO 15305:1998
[5]
.
The samples analysed were:
Sample A
distilled lauric fatty acid
Sample B
crude pressed rapeseed oil
Sample C
refined palm oil
Sample D
hardened palm oil and hardened rapeseed oil
Sample E
palm oil, rapeseed oil, and hardened rapeseed oil
Sample F
rapeseed oil and palm oil
The results obtained were subjected to statistical analysis in accordance with ISO 5725-1
[2]
and ISO 5725-2
[3]
to give the precision data reported in Tables A.1 and A.2.
NOTE
Sample B was a crude, dark and rather cloudy sample, and various path lengths could have been used. This
was probably the cause of the poor reproducibility results, but emphasizes the intensity limit of 4 Lovibond
®
red units
included in this International Standard.
4) Tintometer Model F and Tintometer Model E
are trade names of products supplied by The Tintometer Ltd
(
http://www.tintometer.com
). This information is given for the convenience of users of this International Standard and does
not constitute an endorsement by ISO of these products.
O‘z DSt ISO 27608:2017 (ISO 27608:2010, IDT)
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