International Organization for Standardizationthe organization that sets international quality and safety standards for industry and business 国际标准化组织◆All ISO standards are voluntary. 所有 ISO 标准都是非强制性的。
() Independent Service Organizationa company that offers to deal with credit-card payments made on the Internet 独立服务组织（在互联网上提供信用卡付款服务的公司）