The document specifies frames of class C 250 and D 400 as well as grids of class 250 of curve-type gully tops (side length 500 mm * 500 mm) for gullies.
DIN 19571-2:1997 history
2012DIN 19571-2:2012-10 Gully tops 500 × 500 for road gullies, class C 250, curve type - Part 2: Particulars / Note: Applies in conjunction with DIN 1229 (1996-06), DIN EN 124 (1994-08).
2012DIN 19571-2:2012 Gully tops 500 × 500 for road gullies, class C 250, curve type - Part 2: Particulars
1997DIN 19571-2:1997 Gully tops 500 × 500 for gullies, class C 250, curve type - Particulars
1970DIN 19571-2:1990 Gully tops 500 × 500 for road gullies, class C 250, curve type - Part 2: Particulars
1970DIN 19571-2:1985 Gully tops 500 × 500 for road gullies, class C 250, curve type - Part 2: Particulars