NA 131
DIN Standards Committee Aerospace
DIN EN 4637 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ISO 565 | 1990-07 | Test sieves; metal wire cloth, perforated metal plate and electroformed sheet; nominal sizes of openings More |
| ISO 8486-1 | 1996-08 | Bonded abrasives - Determination and designation of grain size distribution - Part 1: Macrogrits F4 to F220 More |
| ISO 8486-2 | 2007-08 | Bonded abrasives - Determination and designation of grain size distribution - Part 2: Microgrits F230 to F2000 More |
