PNST 492-2020

Maintenance management system of railway transport infrastructure. General provisions

Industrial automation systems and integration. Product data representation and exchange. Part 1654. Application module. Characteristic

Common test methods for insulating and sheathing materials of electric and optical cables. Part 4-2. Methods specific to polyethylene and polypropylene compounds. Tensile strength and elongation at break after conditioning and elevated temperature. Wrapping test after conditioning and elevated temperature. Wrapping test after thermal ageing in air. Measurement of mass increase. Long-term stability test. Test method for copper-catalyzed oxidative degradation

Optics and photonics. Lenses for optical electronic systems. Methods for measuring the diameter of the entrance pupil and determining the relative aperture

The system of protection against fraud and counterfeiting. The verification criteria for conformity assessment of the methods and practice of organizations for the protection against fraud and counterfeiting requirements

Perfumery and cosmetic production. Anodic stripping voltammetric method of definition of mercury