Merck, NIST1D, Limestone

General description
This Standard Reference Material (SRM) is intended primarily for use in evaluating chemical and instrumental methods of analysis of limestone and related materials. SRM 1d is composed of argillaceous limestone quarried in Putnam County, Indiana, USA. A unit of SRM 1d consists of a single bottle containing approximately 70 g of material of which 97 % passes a 75 μm (No. 200) sieve. For more information, please refer to the COA and SDS.

SRM 1D_cert

SRM 1D_SDS
Other Notes
Certified for the analytes listed below.
Sodium oxide (Na₂O), Magnesium oxide (MgO), Aluminium oxide (Al₂O₃), Silicon dioxide (SiO₂), Phosphorus pentoxide (P₂O₅), Sulfur (S), Potassium oxide (K₂O), Calcium oxide (CaO), Manganese (Mn), Iron(III) oxide (Fe₂O₃), Zinc oxide (ZnO), Strontium oxide (SrO)

Reference/Informational value is provided for the following analytes.
Carbon (C), Titanium dioxide (TiO₂), Chromium(III) oxide (Cr₂O₃), Barium oxide (BaO), Beryllium (Be), Niobium (Nb), Cadmium (Cd), Neodymium (Nd), Cerium (Ce), Nickel (Ni), Chlorium (Cl), Praseodymium (Pr), Cesium (Cs), Rubidium (Rb), Dysprosium (Dy), Samarium (Sm), Erbium (Er), Tin (Sn), Europium (Eu), Terbium (Tb), Flurine (F), Thorium (Th), Gallium (Ga), Uranium (U), Gadolinium (Gd), Vanadium (V), Holmium (Ho), Yttrium (Y), Lanthanum (La), Ytterbium (Yb)

See certificate for values and more details at nist.gov/SRM.
Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology