PNST 271-2018

Interstate system for ensuring the uniformity of measurements. Weight amounts of the standard materials for preparation of the buffer solutions - operational pH standards of 2-nd and 3-rd classes. The technical and the metrological characteristics. Methods of them

Circuit-breakers for equipment (CBE)

Plastics. Determination of the degree of disintegration of plastic materials under simulated composting conditions in a laboratory-scale test

Statistical methods. Combined accept-zero systems and process control procedures for product acceptance

Technical aids for communication and information of public use for disabled persons. Classification. Requirements of accessibility and safety

Agricultural and forestry machinery. Inter-row mowing units. Safety