RMXTS_STD_CHAR is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "TMS-TLS: Customizing Standardization and Additional Data" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_RMXTS_STD_CHAR TYPE RMXTS_STD_CHAR.
The RMXTS_STD_CHAR table consists of various fields, each holding specific information or linking keys about TMS-TLS: Customizing Standardization and Additional Data data available in SAP. These include MANDT (Client), ATINN (Internal characteristic), NUTRI_RECN (Sequential Number of Data Record), FLAG_TS (Total Solids)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .