Wartsila 31 Product Manual page 46

6. Fuel Oil System
Property
Pour point (upper) , summer quality, max.
Appearance
Water, max.
Ash, max.
Lubricity, corrected wear scar diameter (wsd 1.4) at
60°C , max.
Remarks:
1)
Additional properties specified by Wärtsilä, which are not included in the ISO specification.
2) The implementation date for compliance with the limit shall be 1 July 2012. Until that the specified value is given for guidance.
3) If the sample is not clear and bright, the total sediment by hot filtration and water tests shall be required.
4)
If the sample is not clear and bright, the test cannot be undertaken and hence the oxidation stability limit shall not apply.
5) It shall be ensured that the pour point is suitable for the equipment on board, especially if the ship operates in cold climates.
6)
If the sample is dyed and not transparent, then the water limit and test method ISO 12937 shall apply.
7) If the sample is not clear and bright, the test cannot be undertaken and hence the lubricity limit shall not apply.
8) The requirement is applicable to fuels with a sulphur content below 500 mg/kg (0.050 % mass).
6-2
5)
8)
Unit ISO-F-DMA ISO-F-DMZ
°C 0
— Clear and bright
% volume — —
% mass 0.01 0.01
µm 520 520
Wärtsilä 31 Product Guide - a1 - 18 October 2016
Wärtsilä 31 Product Guide
ISO-F-DMB Test method ref.
0 6 ISO 3016
6) 3) 4) 7)
0.3 3) ISO 3733
0.01 ISO 6245
520 7) ISO 12156-1