New NBMG standard reference materials available

NBMG is announcing the sale of new standard reference materials for three Carlin-type gold ores:

NBM-8a is a low-grade oxide ore standard having a recommended gold concentration of 0.049 ounces/ton.

NBM-8b is a high-grade oxide ore standard having a recommended gold concentration of 0.290 ounces/ton.

NBM-8c is a high-grade refractory ore standard having a recommended gold concentration on 0.397 ounces/ton with very high arsenic concentration.

All three standards have a broad suite of trace-element data reported. These new SRMs are available in 300-gram bottles for $100.00 or 30-gram bags for $15.00.

NBMG standard reference materials:

http://www.nbmg.unr.edu/Departments/AnalyticalLab/SRM.html

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