ISO/WD
24
© ISO 2013 – All rights reserved
Table B.8 –Stoichiometric factors (Si FA) for converting the fatty acid methyl esters (FAME) to fatty acids
(FA)
Chain
length
Abbrev. FAME
m.w.
FA
m.w.
TAG
m.w.
Si
(FA)
C4:0
SFA
102.1 88.1 302.4
0.863
C6:0
SFA
130.2 116.2 386.5
0.892
C8:0
SFA
158.3 144.2 470.7
0.911
C10:0
SFA
186.3 172.3 554.9
0.925
C12:0
SFA
214.4 200.3 639.0
0.935
C14:0
SFA
242.4 228.4 723.2
0.942
C14:1
ω - 5 (or n-5)
cis MUFA
240.4 226.4 717.1
0.942
C15:0
SFA
256.4 242.4 765.3
0.945
C15:1
ω - 5 (or n-5)
cis MUFA
254.4 240.4 759.2
0.945
C16:0
SFA
270.5 256.4 807.3
0.948
C16:1
ω - 7 (or n-7)
cis MUFA
268.5 254.4 801.3
0.948
C17:0
SFA
284.5 270.5 849.4
0.951
C17:1
ω - 7 (or n-7)
cis MUFA
282.5 268.4 843.4
0.950
C18:0
SFA
298.5 284.5 891.5
0.953
C18:1 TFA
trans
*
296.5 282.5 885.5
0.953
C18:1
ω - 9 (or n-9)
cis MUFA
296.5 282.5 885.5
0.953
C18.2 TFA
trans
*
294.5 280.5 879.4
0.952
C18:2
ω - 6 (or n-6)
cis PUFA LA 294.5 280.5 879.4
0.952
C18:2 CLA ω - 6 (or n-6) cis/
trans
PUFA CLA 294.5 280.5 879.4
0.952
C18:3
ω - 6 (or n-6)
cis PUFA
292.5 278.4 873.4
0.952
C18:3 TFA
trans
*
292.5 278.4 873.4
0.952
C18:3
ω - 3 (or n-3)
cis PUFA ALA 292.5 278.4 873.4
0.952
C20:0
SFA
326.6 312.5 975.7
0.957
C20:1
ω - 9 (or n-9)
cis MUFA
324.6 310.5 969.6
0.957
C20:2
ω - 6 (or n-6)
cis PUFA
322.5 308.5 963.6
0.957
C20:3
ω - 6 (or n-6)
cis PUFA
320.5 306.5 957.5
0.956
C20:3
ω - 3 (or n-3)
cis PUFA
320.5 306.5 957.5
0.956
C20:4
ω - 6 (or n-6)
cis PUFA ARA 318.5 304.5 951.5
0.956
C20:5
ω - 3 (or n-3)
cis PUFA EPA 316.5 302.5 945.4
0.956
C21:0
SFA
340.6 326.6 1017.8
0.959
C22:0
SFA
354.6 340.6 1059.9
0.960
C22:1
ω - 9 (or n-9)
cis MUFA
352.6 338.6 1053.8
0.960
C22:2
ω - 6 (or n-6)
cis PUFA
350.6 336.6 1047.8
0.960
C22:6
ω - 3 (or n-3)
cis PUFA DHA 342.5 328.5 1023.6
0.959
C24:0
SFA
382.7 368.7 1144.0
0.963
C24:1
ω - 9 (or n-9)
cis MUFA
380.7 366.6 1137.9
0.963
*Do not include
trans
fatty acids into MUFA and PUFA sums.
Configuation and group
