6.6.2.4.10 There shall be no sudden change of plate thickness at the attachment of the ends (heads) to the cylindrical portion of the shell.

6.6.3.4.7 There shall be no sudden change of plate thickness at the attachment of the ends (heads) to the cylindrical portion of the shell.

6.6.4.4.8 There shall be no sudden change of plate thickness at the attachment of the ends (heads) to the cylindrical portion of the shell.

6.6.2.4.4 The cylindrical portions, ends (heads) and manhole covers of all shells shall be not less than 3 mm thick regardless of the material of construction.

6.6.3.4.3 The cylindrical portions, ends (heads) and manhole covers of all shells shall be not less than 4 mm thick regardless of the material of construction.

A total external surface area of shell in square metres

Shell means the part of the portable tank which retains the substance intended for transport (tank proper), including openings and their closures, but does not include service equipment or external structural equipment

Shell means the part of the portable tank which retains the refrigerated liquefied gas intended for transport, including openings and their closures, but does not include service equipment or external structural equipment

For flammable non refrigerated liquefied gases, the escaping vapour shall be directed away from the shell in such a manner that it cannot impinge upon the shell.

Shell means the part of the portable tank which retains the non refrigerated liquefied gas intended for transport (tank proper), including openings and their closures, but does not include service equipment or structural equipment

6.2.2.1.3 In the table, under For the cylinder shell , delete the reference to ISO 7866 1999.

It shall possess stabilizing members external to the shell, and shall be capable of being lifted when full.

Structural equipment means the reinforcing, fastening, protective and stabilizing members external to the shell

For an insulated IBC or tank, the Model Regulations require that the heat load to the shell be equivalent to the heat transfer through the insulation plus the heat load to the shell on the assumption that 1 of the insulation is missing.

6.6.2.15.1 Each pressure relief device inlet shall be situated on top of the shell in a position as near the longitudinal and transverse centre of the shell as reasonably practicable.

6.6.3.11.1 Each pressure relief device inlet shall be situated on top of the shell in a position as near the longitudinal and transverse centre of the shell as reasonably practicable.

6.6.4.10.1 All pressure relief device inlets shall be situated on top of the shell in a position as near the longitudinal and transverse centre of the shell as reasonably practicable.

The portable tank includes a shell fitted with service equipment and structural equipment necessary for the transport of gases.

(a) It shall consist of a shield covering not less than the upper third but not more than the upper half of the surface of the shell and separated from the shell by an air space about 40 mm across or

6.6.2.2.11 Vacuum relief devices used on portable tanks intended for the transport of substances meeting the flash point criteria of Class 3, including elevated temperature substances transported at or above their flash point, shall prevent the immediate passage of flame into the shell, or the portable tank shall have a shell capable of withstanding, without leakage an internal explosion resulting from the passage of flame into the shell.

All parts of the shell shall have a minimum thickness as determined by 6.6.2.4.2 to 6.6.2.4.4.

All parts of the shell shall have a minimum thickness as determined by 6.6.3.4.1 to 6.6.3.4.3.

All parts of the shell shall have a minimum thickness as determined by 6.6.4.4.1 to 6.6.4.4.6.

6.6.3.4.2 The cylindrical portions, ends (heads) and manhole covers of shells of not more than 1.80 m in diameter shall be not less than 5 mm thick in the reference steel or of equivalent thickness in the steel to be used.

Shells?

Attention is drawn to the minimum shell thickness requirements for these shells specified in 6.6.3.4.

External fittings shall be protected so as to preclude the release of the shell contents upon impact or overturning of the portable tank on its fittings.

Jacket means the outer insulation cover or cladding which may be part of the insulation system

(b) a jacket and an inner shell with an intermediate layer of solid thermally insulating material (e.g. solid foam)

6.6.2.5.2 All openings in the shell, intended for filling or discharging the portable tank shall be fitted with a manually operated stop valve located as close to the shell as reasonably practicable.

When for reasons of portable tank arrangements the plate cannot be permanently attached to the shell, the shell shall be marked with at least the information required by the pressure vessel code.

When for reasons of portable tank arrangements, the plate cannot be permanently attached to the shell, the shell shall be marked with at least the information required by the pressure vessel code.

(b) with residue of goods previously transported adhering to the outside of the shell or service equipment

Test pressure means the maximum gauge pressure at the top of the shell during the pressure test

6.6.4.4.4 For vacuum insulated tanks, the aggregate thickness of the jacket and the shell shall correspond to the minimum thickness prescribed in 6.6.4.4.2, the thickness of the shell itself being not less than the minimum thickness prescribed in 6.6.4.4.3.

Part IX Resources other than polymetallic sulphides or cobalt crusts

Attention is drawn to the minimum shell thickness requirements for these tanks specified in 6.6.2.4.1 to 6.6.2.4.10.

If you're in China, you might use a rice husk or a cottonseed hull.

Now, going back to the abalone shell, the abalone makes this shell by having these proteins.

Cover open

She took my buttons. Made of shells.

Shell Oil?

That's the smashing part of the heel on both these images, and it gets worn away. In fact, I've seen them wear away their heel all the way to the flesh.

And what parts of the seed husk we don't digest, actually become part of the final, physical composite.

Plants and organisms that make shells, coral, think of it as a building block.