STAS 2247-1971
Natural aggregates SCREENED AND UNSECREENED GRAVEL FOR TRACK BALLASTING

Standard No.

STAS 2247-1971

Release Date

1972

Published By

RO-ASRO

Latest

STAS 2247-1971

Scope

1.1. Prezentul standard se refer? la pietri?ul ciuruit ?i nemuriiit ulilizat la balaslnrea liniilor ferate. 1.2. Pietri?ul dup? provenien?? poate fi: — din prunduri; — din albiile apelor curg?toaie.

STAS 2247-1971 history

• 1972 STAS 2247-1971 Natural aggregates SCREENED AND UNSECREENED GRAVEL FOR TRACK BALLASTING