AN-001 Recommended CRM Gross Masses – Pulverised Materials
The reference list of recommended gross masses for pulverised CRMs used with PhotonAssay™
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What this note covers
Why settled pulverised CRMs cause biased PhotonAssay™ results — and how packing to a recommended gross mass prevents it
Recommended gross mass ranges for materials with a verified range, developed using the Chrysos tamping procedure
Indicative gross mass ranges for additional materials where 100% full remains the first priority
Important notes on overpacking, non-pulverised reference materials, and when not to use the tamper
