These sample cup features a double open-ended and integrated upper cell flange physically prevents cell from uncontrollable retraction or protrusion from the lower edge of the aluminium sample holder. Vented friction-fitting cap equalises pressure differentials within assembled sample cup.

Use with Oxford x-ray analysers requiring user L240 aluminum sample cup holders with interior O ring seals. Replacement sample cups plus vented caps for Oxford aluminium L242 sample cup holder.