This standard defines the applicable dimensioning and tolerancing standards, surface texture standards, and associated measurement standards when no reference is made to a company, regional, national, or international standard on dimensioning and tolerancing on a drawing or model. ASME Product Definition Specifications (PDS) are a set of standards used to document and interpret engineering and verification requirements. PDS standards are jointly developed and approved by the B46, B89, and Y14 committees. PDS standards are harmonized to address engineering and verification requirements.