Each unit of SRM 3139 contains five 10 mL sealed borosilicate glass ampoules containing an acidified aqueous solution, prepared gravimetrically to contain a known mass fraction of phosphorus. The solution consists of around 0.8% nitric acid at a volume fraction.
The certified value is metrologically traceable to the SI unit of mass fraction, expressed in units of milligrams per gram.
The NIST certificate is provided with expiration certificate, storage, handling, use,and maintenance instructions.
Other Notes
Example analytes are listed below as a reference. Please download a current certificate at nist.gov/SRM for current analytes and certified values. Phosphorus (P)
See certificate for values and more details at nist.gov/SRM.
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