Le code | LN-3N | LN-4N | LN-4.5N |
TREO % | ≥37,5 | ≥37,5 | ≥37,5 |
La Pureté et impuretés terre rare relative | |||
La2O3/TREO % | ≥99,9 | ≥99,99 | ≥99,995 |
CeO2/TREO % | ≤0,08 | ≤0.0050 | ≤0.0030 |
Pr6O11/TREO % | ≤0,01 | ≤0,0010 | ≤0,0010 |
Nd2O3/TREO % | ≤0,01 | ≤0,0010 | ≤0,0010 |
Sm2O3/TREO % | ≤0,001 | ≤0,0010 | ≤0,0010 |
Y2O3/TREO % | ≤0,001 | ≤0,0010 | ≤0,0010 |
Impureté non rare earth | |||
Fe2O3 % | ≤0,002 | ≤0,002 | ≤0,0005 |
SiO2% | ≤0,01 | ≤0,005 | ≤0,003 |
CaO % | ≤0,05 | ≤0,005 | ≤0,0005 |
Bbv % | ≤0,05 | ≤0,002 | ≤0,0005 |
De sorte que 2 % 4- | ≤0,01 | ≤0,005 | ≤0,0005 |