Specification of Isotopically Depleted Zinc Oxide pellets
This specification establishes the requirements for isotopically depleted Zinc Oxide (DZO) the physical and chemical properties.
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Physical properties
Chemical properties
Specific impurity limits per element
Physical properties
| Isotopic composition 64Zn: |
1.0 atomic |
| Physical form |
pellets |
| Diameter (D in mm) |
10.0±1.0 mm |
| Length (L in mm) |
10.0±1.0 mm |
| Fired density: |
≥ 5.0 g/cm3 |
| Voids, laminations from firing cracks: |
Unacceptable |
| Surface scratches of any length: |
Acceptable if the depth is <0.5 mm |
| Indentations of any diameter: |
Acceptable if the depth is <0.5 mm |
| Margin chips of <1 mm in any direction |
Acceptable |
Chemical properties
| Chemical form: |
ZnO |
| Chemical purity of dry basis: |
> 99.8 weight % |
Specific impurity limits per element (max) in ppm (μg/g ZnO)
| Element |
Symbol |
Impurity limits ppm (μg/g) |
| Ag |
Silver |
10 |
| Al |
Aluminium |
50 |
| As |
Arsenic |
10 |
| B |
Boron |
10 |
| Bi |
Bismuth |
10 |
| Ba |
Barium |
10 |
| Br |
Bromine |
10 |
| C |
Carbon (total) |
500 |
| Ca |
Calcium |
10 |
| Cd |
Cadmium |
10 |
| Cl |
Chlorine |
20 |
| Co |
Cobalt |
10 |
| Cr |
Chromium |
10 |
| Cu |
Copper |
10 |
| F |
Fluorine |
20 |
| Fe |
Iron |
10 |
| Hf |
Hafnium |
10 |
| I |
Iodine |
10 |
| In |
Indium |
10 |
| K |
Potassium |
10 |
| Li |
Lithium |
10 |
| Mg |
Magnesium |
10 |
| Mn |
Manganese |
10 |
| Mo |
Molybdenum |
10 |
| Na |
Sodium |
10 |
| Ni |
Nickel |
10 |
| P |
Phosphorous |
10 |
| Pb |
Lead |
10 |
| S |
Sulphur (as sulphate/SO42-) |
10 |
| Sb |
Antimony |
10 |
| Se |
Selenium |
10 |
| Si |
Silicon |
50 |
| Sn |
Tin |
10 |
| Sr |
Strontium |
10 |
| Sr |
Strontium |
10 |
| Ti |
Titanium |
10 |
| V |
Vanadium |
10 |
|
|
remaining impurities(each) |
10 |
Packaging:
Pellets must be handled, stacked, stored and moved in a manner that prevents physical damage or contamination
Packaging material in contact with Zinc Oxide Pellets shall be polyethylene or equivalent material freefrom halides or sulphides.