GOST 21939-76

Dental handpieces. Electrical-powered scalers and scaler tips

Audio signal diagnostic generators. Audiometers. General technical requirements and testing methods

Ignition systems of automobile. Terms and definitions

Resilient, textile and laminate floor covering. Essential properties

State system for ensuring the uniformity of measurements. National standard. Standard reference data. Segnetoelectric ceramic materials based on niobates of sodium and potassium. Dielectric and piezoelectric characteristics at temperatures from 0°C to 100°C

Meat and meat products. Determination of starch content