GOST 23251-2023

Household and similar electrical appliances. Safety. Part 2-81. Particular requirements for foot warmers and heating mats

Medical devices. Biological evaluation of medical devices. Part 1. Evaluation and testing

Occupational safety standards system. Respiratory protective devices. Thread for facepieces. Thread connection M45x3

Polymer composites. Production of plates by contact and spray-up moulding for preparation of test specimens

Explosive atmospheres. Explosion prevention and protection. Part 2. Basic concepts and methodology for mining

Electromagnetic compatibility of technical equipment. Electrical equipment for measurement, control and laboratory use. Part 2-2. Particular requirements for portable test, measuring and monitoring equipment used in low-voltage distribution systems. Test configurations, operational conditions and performance criteria