Printed boards and printed board assemblies. Design and use. Part 5-6. Attachment (land/joint) considerations. Chip carriers with J-leads on four sides
State system for ensuring the uniformity of measurements. Measurement of liquids and gases flow rate and quantity by differential pressure method. Orifice plates, nozzles ISA 1932 and Venturi tubes inserted in circular cross-section filled conduits. Specifications
Corrosion protection in construction. Concrete and reinforced concrete constructions. Structural concrete. Test of vapor permeability of protection covers