ISO 17491-3:2008规定了一种测定防护服抗液体喷射渗透性的试验方法。 ISO 17491-3:2008适用于服装不同部分之间以及服装与其他个人防护装备之间（如适用）具有液密连接的服装。 ISO 17491-3:2008未涉及其他标准中规定的服装材料的耐化学渗透性。

ISO 17491-3:2008 specifies a test method for determining the resistance of protective clothing against penetration by a jet of liquid. ISO 17491-3:2008 is applicable to clothing with liquid-tight connections between different parts of the clothing and, if applicable, between the clothing and other items of personal protective equipment worn with it. ISO 17491-3:2008 does not address chemical permeation resistance of the clothing materials, which is specified in other standards.