Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 21. Particular requirements for boxes and enclosures with provision for suspension means
Equipment for crop protection. Spraying equipment. Part 3. Test method for volume/hectare adjustment systems of agricultural hydraulic pressure sprayers
Optics and photonics. Semiconducting photoelectric detectors. Photoelectric and photoreceiving devices. Methods of measuring photoelectric parameters and determining characteristics
