GOST 20841.4-75

Hexagon domed nuts (high precision). Construction and dimensions

Basic norms of interchangeability. Keyed joints with prismatic high keys. Dimensions of keys and keyways. Tolerances and fits

Molybdenum concentrates. Methods for the determination of iron content

State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring the content of components in liquid and solid substances and materials. Transfer of the units from the state primary standard based on coulometric titration

Dried fruits. Acceptance rules, methods of testing

Lifting appliances. Controls. Layout and characteristics. Part 1. General principles