The following trace metals on filter media are designed to meet the QC requirements for Method 7300. 

Each set of nitrocellulose filters (QC-TMFM-X) includes 10 spiked filters and 5 blanks

Mixed cellulose ester (MCE) with 0.8 µm pore size
37 mm diameter

1 Year Expiration

The elements and their target concentrations are listed below. The concentrations are reported as µg per filter and are certified to ± 1%

Arsenic 50
Barium 10
Beryllium 10
Cadmium 10
Chromium 10
Cobalt 10
Copper 25
Iron 25
Lead 25
Manganese 10
Nickel 10
Silver 5
Thallium 10
Vanadium 10
Zinc 50
Uranium 5