インテル® Fortran コンパイラー XE 13.1 ユーザー・リファレンス・ガイド
The RECL specifier asks the maximum record length for a file. It takes the following form:
RECL = rcl
The assigned value is expressed in 4-byte units if the file is currently (or was previously) connected for unformatted data transfer; otherwise, the value is expressed in bytes.