ISRI Code (27/29) R50 (51.67 Kg/Meter – GOST 7173-75) ISRI Code (27/29) R65 (64.72 Kg/Meter – GOST 8165-75) The scrap consists of R50-R65 (50% minimum) of Rails as R-50 (51.67 kg/m- GOST-7173-75), R65 (64.72 kg/m-GOST- 165-75), and Length: between 1 meter (min.) to 1.5 meters (max) not exciding 1.5 meters, according to INCOTERMS-2000.