Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:6600:p13
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 6600 (pt 13/28)
Character Range: 798663–813463

(R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied.
(b)  In cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision, described in EN ISO 4259 shall be used.
(c)  In cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up (similar to the reference in the national Annex of EN 228).
(d)  The actual sulphur content of the fuel used for the Type 1 test shall be recorded.
(e)  The unleaded petrol content can be determined as 100 minus the sum of the percentage content of water and alcohols.
(f)  There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
(g)  Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.

4. Technical data on gaseous fuels for testing vehicles with positive-ignition engines
              4.1. LPG (A and B)
Table A3/8
LPG (A and B)
Parameter                                                                                                                                                                                                                                                                                                                    Unit      Fuel E1         Fuel E2  Fuel J   Fuel K                  Test method
Composition:                                                                                                                                                                                                                                                                                                                                                                                     ISO 7941
                                                                                                                                                                                                                                                                                                                                                                         Winter:
                                                                                                                                                                                                                                                                                                                                                                         min. 15,
C3-content                                                                                                                                                                                                                                                                                                                   % vol     30 ±2           85 ±2             max. 35                 KS M ISO 7941
                                                                                                                                                                                                                                                                                                                                                                         Summer:
                                                                                                                                                                                                                                                                                                                                                                         max. 10
Propane and propylene content                                                                                                                                                                                                                                                                                                % mole                             Min 20,                          JIS K2240
                                                                                                                                                                                                                                                                                                                                                                max 30
                                                                                                                                                                                                                                                                                                                                                                Winter:
C4-content                                                                                                                                                                                                                                                                                                                   % vol     Balance                  min.60,  KS M ISO 7941
                                                                                                                                                                                                                                                                                                                                                                Summer:
                                                                                                                                                                                                                                                                                                                                                                min. 85
Butane and butylene content                                                                                                                                                                                                                                                                                                                                     Min 70,                          JIS K2240
                                                                                                                                                                                                                                                                                                                                                                max 80
Butadiene                                                                                                                                                                                                                                                                                                                                                                max. 0.5                KS M ISO 7941
< C3, > C4                                                                                                                                                                                                                                                                                                                   % vol     Max. 2          Max. 2
Olefins                                                                                                                                                                                                                                                                                                                      % vol     Max. 12         Max. 15
Evaporation residue                                                                                                                                                                                                                                                                                                          mg/kg     Max. 50         Max. 50                                   EN 15470
Evaporation residue (100ml)                                                                                                                                                                                                                                                                                                  ml        -                                 0.05                    ASTM D2158
Water at 0 °C                                                                                                                                                                                                                                                                                                                          Free                              EN 15469
Total sulphur content                                                                                                                                                                                                                                                                                                        mg/kg     Max. 10         Max 10                                    ASTM 6667
                                                                                                                                                                                                                                                                                                                                                                Max 40   KS M 2150, ASTM D4486,
                                                                                                                                                                                                                                                                                                                                                                         ASTM D5504
Hydrogen sulphide                                                                                                                                                                                                                                                                                                                      None            None                                      ISO 8819
Copper strip corrosion                                                                                                                                                                                                                                                                                                       rating    Class 1         Class 1                                   ISO 6251 (a)
Copper corrosion                                                                                                                                                                                                                                                                                                             40 ℃, 1h  -                                 1                       KS M ISO 6251
Odour                                                                                                                                                                                                                                                                                                                                  Characteristic
Motor octane number                                                                                                                                                                                                                                                                                                                    Min. 89         Min. 89                                   EN 589
                                                                                                                                                                                                                                                                                                                                                                                                 Annex B
Vapour pressure (40 ℃)                                                                                                                                                                                                                                                                                                       MPa       -               1.27                                      KS M ISO 4256
                                                                                                                                                                                                                                                                                                                                                                                                 KS M ISO 8973
                                                                                                                                                                                                                                                                                                                                                                                                 KS M 2150,
Density (15 ℃)                                                                                                                                                                                                                                                                                                               kg/m³     500                               620                     KS M ISO 3993
                                                                                                                                                                                                                                                                                                                                                                                                 KS M ISO 8973
(a)  This method may not accurately determine the presence of corrosive