Guides

Short answers to the questions geologists and labs ask us most often.

• How many standards to insert per sample batch

  How often to insert reference materials, blanks and duplicates into a sample batch, how to choose CRM grades, and how to evaluate results with 2SD and 3SD rules.

• GSO, OSO, SOP and CRM: the difference

  How national (GSO), industry (OSO) and in-house (SOP) reference materials used in Kazakhstan and Russia differ from certified reference materials (CRMs) such as OREAS and Geostats.

• How to choose a geological sample bag

  Which bag size suits core, channel and geochemical samples, why to print numbers, and how many bags to order for a drilling season.

• How to choose a diamond blade for core cutting

  How to choose a diamond blade for a core saw: 300 or 350 mm, continuous or segmented rim, soft or hard bond.