ISO 13500:2008涵盖了用于油气井钻井液的材料的物理性质和测试程序。涵盖的材料有重晶石、赤铁矿、膨润土、未经处理的膨润土、OCMA级膨润土、凹凸棒石、海泡石、工业级低粘度羧甲基纤维素（CMC？LVT）、工业级高粘度羧甲基纤维素（CMC-HVT）、淀粉、低粘度聚阴离子纤维素（PAC-LV）、高粘度聚阴离子纤维素（PAC-HV）和钻井级野油菜黄单胞菌（黄原胶）。 ISO 13500:2008旨在供指定产品的制造商使用。

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.