ISO/TR 13121:2011描述了为保护公众、消费者、工人和环境的健康和安全，对开发和使用人造纳米材料的潜在风险进行识别、评估、解决、决策和沟通的过程。 ISO/TR 13121:2011提供了做出合理风险评估和风险管理决策所需的信息指南，以及如何通过合理假设和适当的风险管理实践，在信息不完整或不确定的情况下进行管理。此外，ISO/TR 13121: 2011年包括在新信息可用时更新假设、决策和实践的方法，以及如何向利益相关者传达信息和决策的方法。 ISO/TR 13121:2011建议组织在管理纳米材料时可以使用透明和负责的方法。它描述了组织、记录和交流组织关于纳米材料的信息的过程。

ISO/TR 13121:2011 describes a process for identifying, evaluating, addressing, making decisions about, and communicating the potential risks of developing and using manufactured nanomaterials, in order to protect the health and safety of the public, consumers, workers and the environment. ISO/TR 13121:2011 offers guidance on the information needed to make sound risk evaluations and risk management decisions, as well as how to manage in the face of incomplete or uncertain information by using reasonable assumptions and appropriate risk management practices. Further, ISO/TR 13121:2011 includes methods to update assumptions, decisions, and practices as new information becomes available, and on how to communicate information and decisions to stakeholders. ISO/TR 13121:2011 suggests methods organizations can use to be transparent and accountable in how they manage nanomaterials. It describes a process of organizing, documenting, and communicating what information organizations have about nanomaterials.