This standard specifies general rules for determining the ash content of plastics (resins and compounds) under appropriate conditions. Special test conditions applicable to plastics containing glass fiber reinforcement, fillers and/or certain additives are specified elsewhere in ISO 7250 for individual resins (see Preface).
JIS K 7250-1:2006 history
2006JIS K 7250-1:2006 Plastics -- Determination of ash -- Part 1: General methods