Published
ISO 13500:2008 covers physical properties and test procedures for materials manufactured for use in oil- and gas-well drilling fluids. The materials covered are barite, haematite, bentonite, nontreated bentonite, OCMA-grade bentonite, attapulgite, sepiolite, technical-grade low-viscosity carboxymethylcellulose (CMC‑LVT), technical-grade high-viscosity carboxymethylcellulose (CMC-HVT), starch, low-viscosity polyanionic cellulose (PAC-LV), high-viscosity polyanionic cellulose (PAC-HV) and drilling-grade Xanthomonas campestris (Xanthan gum).
ISO 13500:2008 is intended for the use of manufacturers of named products.
WITHDRAWN
ISO 13500:2006
PUBLISHED
ISO 13500:2008
90.20
Standard under periodical review
Jul 15, 2026
ABANDON
ISO/PWI 13500
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