that average time over a given work period (e.g. 8 h working day) of a person’s exposure to a chemical or an agent. The average is determined by sampling for the containment throughout the time period and represented by TLV - TWA. … [Read more...]
Threshold limit value (TLV)
airborne concentrations of substances devised by the American Conference of Government Industrial Hygienists (ACGIH). Representative of conditions under which it is believed that nearly all workers may be exposed day after day with no adverse effects. There are three different types of TLV, TWA, STEL and C.Note: TLVs are advisory exposure guidelines, not legal standards and are based on evidence from industrial experience and research studies. … [Read more...]
Tank dome
the upward extension of a position of a cargo tank. In the case of below deck cargo containment system the tank dome protrudes through the weather deck or through a tank covering. … [Read more...]
TEU
twenty feet equivalent unit. Used to express the cargo capacity of a container vessel. … [Read more...]
Tare weight
means the weight of the empty container including permanently affixed ancillary equipment. … [Read more...]
Timber loadline
a special loadline assigned to ships complying with certain conditions relating to their construction set out by the International Convention on Loadlines and used when the cargo complies with the stowage and securing conditions of this code. … [Read more...]
Timber lashings
all lashings and securing components should possess a breaking strength of not less than 133 kN. … [Read more...]
Timber deck cargo
means a cargo of timber carried on an uncovered part of a freeboard or superstructure deck. The term does not include wood pulp or similar cargo. … [Read more...]
Timber
should be taken to mean any sawn wood, or lumber, cants, logs, poles, pulpwood and all other types of timber in loose or packaged forms. The term does not include wood pulp or similar cargo.Timber Cargoes Example Timber is loaded in various forms with differing weights and methods being employed. Package timber is generally handled with rope slings while the heavier logs, depending on size, are slung with wire snotters or chain slings.Battens – sawn timber more than 10 cm thick and approximately 15–18cm wide. Usually shipped in standardized bundles and may be pre-slung for ease of … [Read more...]
Trimming
a manual or mechanically achieved adjustment to the surface level of the form/shape of a bulk stow in a cargo space. It may consist of altering the distribution or changing the surface angle to the point, perhaps of leveling some or all of the cargo, following loading. … [Read more...]