RMA 30 - A grade created by ISO 8217:2005 formerly known under ISO 8217:1996 as RMA10 and used for 30cst but with certain specs changed. Produced with a low pour point for smaller vessels without tank heating.

Units
Limits
Test Method ISO
Density at
15°C kg/m3
max
960.0
3675
Approx. Kinematic Viscosity at
50°C cSt
30/40.0
3104
Kinematic Viscosity at
40°C cSt
min
-
3104
Kinematic Viscosity at
40°C cSt
max
-
3104
Flash Point
°C
min
60
2719
Pour Point (upper), Winter Quality
°C
max
0
3016
Pour Point (upper), Summer Quality
°C
max
6
3016
Cloud Point
°C
max
-
3015
Cetane Number
max
-
5165
Micro Carbon Residue on 10% Residue
%(m/m)
max
-
10370
Micro Carbon Residue
%(m/m)
max
10
10370
Ash
%(m/m)
max
0.10
6245
Sediment by Extraction
%(m/m)
max
-
3735
Total Sediment Potential
%(m/m)
max
0.10
10307-2
Water
%(V/V)
max
0.50
3733
Sulphur
%(m/m)
max
3.50*
8754
Vanadium
mg /kg
max
80
14597
Aluminium plus Silicon
mg/kg
max
80
10478
Total Acid Number
mg KOH/g
max
3
6618
Used lubricant oil (ULO's)
Zinc
mg/kg
max
15
IP 501 or 470
Phosporus
mg/kg
max
15
IP 501 or 470
Calcium
mg/kg
max
30
IP 501 or 470

*Statutory - in an ECA this must be max 1%S and 3.5%S for all other areas. However, some areas may not have 3.5% available. The Global Cap brought into force on 1st January 2012 has no grace period under Marpol Annex VI. Also, there is no policy for residual fuel aboard with sulpur content more than 3.5%. If fuel is higher than 3.5%in sulphur content than this is not compliant with Marpol Annex VI.