Contributor #J-2856
Anonymous submitter. Distinguishes material quality from certificate quality.
Section 1
Contribution
Purchases material, pays for assays, and submits the resulting reports to the index.
Records submitted
11
n=11
Annotations
0
n=0
Median purity submitted
98.78%
n=11
Suppliers covered
9
n=11
Section 2
Records submitted
A submitter chose to buy this material and to pay for this assay. That choice is the selection mechanism behind the whole index and it is not random.