The development of SRMs involves several rigorous steps:
Selection: Identifying materials that are representative of the types of samples typically analyzed in catalysis. Characterization: Extensive characterization using multiple analytical techniques to determine the material's properties accurately. Homogeneity Testing: Ensuring that the material is homogeneous so that different samples from the same batch will yield consistent results. Stability Testing: Testing the material over time to ensure that its properties remain stable under specified storage conditions. Certification: Official certification by authoritative bodies such as the National Institute of Standards and Technology (NIST) or equivalent organizations.