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 10
Barium 2.5
Beryllium 1
Cadmium 1
Chromium 2.5
Cobalt 2.5
Copper 2.5
Iron 2.5
Lead 2.5
Manganese 1
Nickel 2.5
Silver 1
Thallium 2.5
Vanadium 2.5
Zinc 2.5
Uranium 2.5