NA 055
DIN Standards Committee Laboratory Devices and Installations
DIN 12540 [New] references following documents:
| Document number | Edition | Title |
|---|---|---|
| DIN ISO 719 | 2021-12 | Glass - Hydrolytic resistance of glass grains at 98 °C - Method of test and classification (ISO 719:2020) More |
| DIN 12256 | 2022-08 | Laboratory glassware - Tightness test of conical joints, spherical joints and stopcocks More |
| DIN 12553 | 2024-12 | Laboratory glassware - Double oblique bore stopcocks More |
| DIN 12554 | 2020-03 | Laboratory glassware - T-bore stopcocks More |
| ISO 4785 | 1997-05 | Laboratory glassware - Straight-bore glass stopcocks for general purposes More |
