Vetter, T.
, Bryan Sallee, C.
, Lang, B.
, Marlow, A.
, Ness, J.
, Paul, R.
, Pintar, A.
, Scruggs, B.
, Sharp, N.
, Vega Martinez, M.
and Sieber, J.
(2024),
Certification of Standard Reference Material® 2693a Bituminous Coal (Nominal Mass Fraction 0.5 % Sulfur), Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.SP.260-230, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956682
(Accessed December 21, 2024)