What are the non - iso standards?

Non-ISO standards refer to guidelines, regulations, or specifications developed by organizations other than the International Organization for Standardization (ISO). These can include standards from national bodies like ASTM (American Society for Testing and Materials), ANSI (American National Standards Institute), or regional organizations like CEN (European Committee for Standardization). Non-ISO standards may focus on specific industries or applications and often complement ISO standards by addressing local or specialized needs.