Draft Specification for PR EN 14214 - The pure biodiesel standard.

Table 1 - Generally applicable requirements and test methods.

   

Limits

 

Property

Unit

Minimum

Maximum

Test method a

Ester content

% (m/m)

96.5 q

 

prEN 14103 d

Density
at 15°C b

kg/m 3

860

900

EN ISO 3675
EN ISO 12185

Viscosity at
40°C c

mm2 /s

3,5

5,0

EN ISO 3104

Flash point

°C

above 101

-

ISO / CD 3679 e

Sulphur content l

mg/kg

-

10

 

Carbon residue (on 10% distillation residue) g

% (m/m)

 

0,3

EN ISO 10370

Cetane number

 

51,0

 

EN ISO 5165

Sulphated ash content

% (m/m)

-

0,02

ISO 3987

Water Content

mg/kg

-

500

EN ISO 12937

Total contamination n

mg/kg

 

24

EN 12662

Copper strip corrosion
(3h at 50 °C)

rating

Class 1

Class 1

EN ISO 2160

Thermal Stability j

 

 

 

 

Oxidation stability, 110°C

hours

6

 

pr EN 14112 k

Acid value

mg KOH/g

 

0,5

pr EN 14104

Iodine value

 

 

120

Pr EN 14111

Linolenic acid methyl ester

% (m/m)

 

12

pr EN 14103 d

Polyunsaturated (>= 4 double bonds) methyl esters r

% (m/m)

 

1

 

Methanol content

% (m/m)

 

0,2

pr EN 14110 l

Monoglyceride content

% (m/m)

 

0,8

pr EN 14105 m

Diglyceride content

% (m/m)

 

0,2

pr EN 14105 m

Triglyceride content

% (m/m)

 

0,2

pr EN 14105 m

Free glycerol b

% (m/m)

 

0,02

pr EN 14105 m
pr EN 14106

Total glycerol

% (m/m)

 

0,25

pr EN 14105 m

Alkaline metals (Na+K) n

mg/kg

 

5

pr EN 14108
pr EN 14109

Phosphorus content

mg/kg

 

10

pr EN14107 p

a See also 5.5.1

b See also 5.5.2

c If CFPP is —20oC or lower, the viscosity measured a —20oC shall not exceed 48 mm2/s. in this case, EN ISO 3104 is applicable without the precicion data.

d CEN/TC 307 publication of NF T 60-703: 1997

e Apparatus equipped with a thermal detection device shall be used.

f Suitable test methods to be proposed by CEN/TC 19

g ASTM D 1160 shall be used to obtain the 10% distillation residue.

h Pending development of a suitable method by CEN/TC 19, EN 12662 shall be used.
The precision of EN 12662 is however poor for FAME products.

j Suitable test method and limit to be proposed by CEN/TC 19.

k CEN/TC 307 publication of ISO 6886 modified.

l CEN/TC 307 publication of NF T 60-701 (procedure A) and DIN 51608 (procedure B).

m CEN/TC 307 publication of NF T 60-704: 1997.

n Extension of this to cover additional elements, e.g. Ca and Mg to be considered.

p CEN/TC 307 publication of NF T 60-705: 1997.

q Attention is drawn to 5.2

r Suitable test method to be developed.