OpenLegislation

Division 4.4.3 Materials

United Kingdom

Original text. Later amendments are not shown.

  1. (a)

    Plastic explosive containing 83 % to 86 % penthrite

    • density: 1 500 kg/m3 to 1 600 kg/m3

    • detonation velocity: 7 300 m/s to 7 700 m/s

    • mass: (500 ± 1) g;

    or any other plastic explosive with similar detonation characteristics.

  2. (b)

    Seven lengths of flexible detonating cord with non-metallic sleeve

    • filling mass: 11 g/m to 13 g/m

    • length of each cord: (400 ± 2) mm.

  3. (c)

    Compressed pellet of secondary explosive, recessed to receive detonator

    • explosive: hexogen/wax 95/5 or similar secondary explosive, with or without added graphite

    • density: 1 500 kg/m3 to 1 600 kg/m3

    • diameter: 19 mm to 21 mm

    • height: 19 mm to 23 mm

    • mass of the compressed pellet: maximum 10 g

    • central recess to receive detonator: maximal diameter 7,0 to 7,3 mm, depth about 12 mm. In case of detonators with large diameters, the diameter of the recess shall be slightly larger (e.g. 0,5 mm) than the diameter of the detonator.

  4. (d)

    Seamless steel tube as specified in ISO 65 – 1981 – Heavy Series, with nominal dimensions DN 100 (4'')

    • outside diameter: 113,1 mm to 115,0 mm

    • wall thickness: 5,0 mm to 6,5 mm

    • length: 1 005 ± 2 mm.

  5. (e)

    Bottom plate

    • material: steel of good weldable quality

    • dimensions: 160 mm × 160 mm

    • thickness: 5 mm to 6 mm.

  6. (f)

    Six lead cylinders

    • diameter: 50 ± 1 mm

    • height: 100 mm to 101 mm

    • materials: soft lead, at least 99,5 % purity.

  7. (g)

    Steel block

    • length: at least 1 000 mm

    • width: at least 150 mm

    • height: at least 150 mm (alternatively a stack of several beams can be used to achieve this height)

    • Mass: at least 300 kg if there is no firm base for the steel block.

  8. (h)

    Plastic or cardboard cylinder for booster charge

    • wall thickness: 1,5 mm to 2,5 mm

    • diameter: 92 mm to 96 mm

    • height: 64 mm to 67 mm.

  9. (i)

    Detonator (electric or non-electric) with initiation force 8 to 10

  10. (j)

    Wooden or plastic disc

    • diameter: 92 mm to 96 mm. Diameter to be matched to the internal diameter of the plastic or cardboard cylinder (point (h))

    • thickness: 20 mm.

  11. (k)

    Wooden or plastic rod of same dimensions as detonator (point (i))

  12. (l)

    Small split pins (maximum length 20 mm)

  13. (m)

    Split pins (length about 20 mm)