Perhaps the most comparable product around is a type of simulated granite, or quartz with resins, that can indeed approach or meet the price of granite at around $35.00 to $80.00 per square foot, depending on color chosen.
Definition of primary standard. 1) A substance of a known high degree of purity that undergoes one invariable reaction with the other reactant of interest.
We can express this with definite numbers with proper units. By using this standard we can find out the concentration of that substance in a new material. Therefore, primary standard serves the purpose of being the primary calibrator or primary reference material.