Testing of leather; determination of the contents of organic and inorganic materials extractable by washing out (loss of weight by washing out)— 3 стр.
Respiratory equipment; compressed air line breathing apparatus incorporating a hood, a helmet, or a suit; safety requirements, testing, marking— 7 стр.
Directions for transporting and storing of concrete pipes, reinforced concrete pipes, prestressed concrete pipes and fittings and concrete manhole shaft rings— 3 стр.