Electrical apparatus for potentially explosive atmospheres for mining - Cable entries - Part 2: Gland adaptors for entries; safety requirements and testing— 7 стр.
Electrical apparatus for potentially explosive atmospheres for mining - Cable entries - Part 3: Gland flanges for entries; safety requirements and testing— 9 стр.
Testing of rubber; determination of tensile strength at break, tensile stress at yield, elongation at break and stress values in a tensile test— 7 стр.