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%

Aluminum 100
Arsenic 20
Barium 5
Beryllium 0.2
Cadmium 2
Chromium 5
Cobalt 5
Copper 5
Iron 5
Lead 5
Manganese 2
Nickel 5
Silver 2
Thallium 5
Vanadium 5
Zinc 5