BS MA 24:1974

Foreword
Specification
1. General
1.1 Scope
1.2 Conformity with law or regulation
1.3 Definitions
2. Materials
2.1 General
2.2 Schedule of materials
3. Glasses for side scuttles
3.1 General
3.2 Dimensions of toughened safety glass
3.3 Examination and testing of toughened glasses
3.4 Marking
4. Design and construction
4.1 General
4.2 Construction
5. Glazing
5.1 General
5.2 Glazing strips
5.3 Retaining rings
6. Installation and testing
6.1 Installation
6.2 Testing
6.3 Inspection
6.4 Testing facilities
7. Identification and designation
7.1 Identification
7.2 Designation
8. Type and position of side scuttles
8.1 General
8.2 Type A: heavy series side scuttles with deadlight
8.3 Type B: medium series side scuttles with deadlight
8.4 Type C: light series side scuttles without deadlight
8.5 Zone ZD side scuttles
8.6 Side scuttles positioned in-board of ship's side
8.7 Locknuts for fastening of side scuttles
8.8 Design head
APPENDICES
A. Examination in polarized light
B. Suitable apparatus for the load stamp test: punch
      method
TABLES
1. Glass thicknesses and permissible head of water
      for ships' side scuttles
2. Thickness tolerances for glasses
3. Tolerances on flatness and parallelism of glasses
4. Dimensions of arris for edge of glasses
5. Proof leading for load stamp test: punch method
6. Minimum tensile strength and elongation of
      materials for main frame, glassholder and deadlight
7. Minimum requirements for tensile strength and
      elongation of materials for swing bolts, pins and
      nuts
8. Thread dimensions for retaining rings
9. Test pressures for mechanical strength
10. Test pressures for watertightness
11. Designation of the model of side scuttle
12. Designation of the material for side scuttles
13. Components used in Figs. 11, 12 and 13 for test
      apparatus
14. Non-opening side scuttles (bolted). ISO type A:
      heavy series with deadlight
15. Opening side scuttles (bolted). ISO type A: heavy
      series with deadlight
16. Non-opening side scuttles (bolted). ISO type B:
      medium series with deadlight
17. Opening side scuttles (bolted). ISO type B: medium
      series with deadlight
18. Non-opening side scuttles (bolted). ISO type C:
      light series without deadlight
19. Opening side scuttles (bolted). ISO type C: light
      series without deadlight
20. Non-opening side scuttles (welded). ISO type A:
      heavy series with deadlight
21. Opening side scuttles (welded). ISO type A: heavy
      series with deadlight
22. Non-opening side scuttles (welded). ISO type B:
      medium series with deadlight
23. Opening side scuttles (welded). ISO type B: medium
      series with deadlight
24. Non-opening side scuttles (welded). ISO type C:
      light series without deadlight
25. Opening side scuttles (welded). ISO type C: light
      series without deadlight
26. Non-opening side scuttles (aluminium). ISO type B:
      medium series with deadlight
27. Opening side scuttles (aluminium). ISO type B:
      medium series with deadlight
28. Non-opening side scuttles (aluminium). ISO type C:
      light series without deadlight
29. Opening side scuttles (aluminium). ISO type C:
      light series without deadlight
FIGURES
1. Arris for edge of glass
2. Marking symbols for toughened glasses
3. Glassholder and deadlight rubber ring suggested
      dimensions
4. Position of types of side scuttles when lower deck
      is datum level for ships under 150m in length
5. Position of types of side scuttles when lower deck
      is datum level for ships of 150m to 200m in length
6. Position of types of side scuttles when lower deck
      is datum level for ships over 200m in length
7. Position of types of side scuttles when upper deck
      is datum level for ships under 150m in length
8. Position of types of side scuttles when upper deck
      is datum level for ships of 150m to 200m in length
9. Position of types of side scuttles when upper deck
      is datum level for ships over 200m in length
10. Polariscope for examining standard of toughening
11. Test apparatus for glass of scuttles 250 mm nominal
      size and above
12. Test apparatus for glass of scuttles of 150 mm and
      200 mm nominal size
13. Test punch
14. Typical design of side scuttles (bolted) for
      Table 14
15. Typical design of side scuttles (bolted) for
      Table 15
16. Typical design of side scuttles (bolted) for
      Table 16
17. Typical design of side scuttles (bolted) for
      Table 17
18. Typical design of side scuttles (bolted) for
      Table 18
19. Typical design of side scuttles (bolted) for
      Table 19
20. Typical design of side scuttles (welded) for
      Table 20
21. Typical design of side scuttles (welded) for
      Table 21
22. Typical design of side scuttles (welded) for
      Table 22
23. Typical design of side scuttles (welded) for
      Table 23
24. Typical design of side scuttles (welded) for
      Table 24
25. Typical design of side scuttles (welded) for
      Table 25
26. Typical design of side scuttles (aluminium) for
      Table 26
27. Typical design of side scuttles (aluminium) for
      Table 27
28. Typical design of side scuttles (aluminium) for
      Table 28
29. Typical design of side scuttles (aluminium) for
      Table 29

Requirements for design, construction, scantlings, glazing, testing and installation of light, medium and heavy series side scuttles suitable for bolting or welding to the superstructure. The range of 200 mm to 400 mm covers opening and non-opening types fitted with or without a dead light.