• “code” is mostly reserved for a code of practice (e.g. a recommended design or operating procedure) • “standard” is preferred for sizes(e.g. 1-inch nominal size steel pipe schedule number) and compositions
• “code” is mostly reserved for a code of practice (e.g. a recommended design or operating procedure) • “standard” is preferred for sizes(e.g. 1-inch nominal size steel pipe schedule number) and compositions