STAS 2640-1982
RAW BENTONITE (LUMPS) FOR DRILLING FLUIDS PRODUCTION

Standard No.

STAS 2640-1982

Release Date

1982

Published By

RO-ASRO

Latest

STAS 2640-1982

Scope

Prezentul standard se refer? la bentonita brut? (bulg?ri), destinat? activ?rii, ?n vederea ?ntrebuin??rii la fabricarea fluidelor de foraj.

STAS 2640-1982 history

• 1982 STAS 2640-1982 RAW BENTONITE (LUMPS) FOR DRILLING FLUIDS PRODUCTION