Safe Handling of Tank Containers - ITCO

More documents

Recommendations

Info

ICHCA International Safety Panel Briefing Pamphlet No 30 6.3.2.1 As stated in paragraph 5.3.6 spill boxes are fitted with a drain tube to allow waste material to be drained. However it is important to note that liquids escaping from these tubes are not always dangerous. There have been a large number of false alarms raised because operators erroneously believed that the tank container was leaking. However on closer examination the liquid was found to be melt or rain water. 6.3.3 Cryogenic Tanks 6.3.3.1 Cryogenic tanks do not have any refrigeration equipment but rely on the vacuum insulation to reduce heat gain and retain the gaseous cargo in a liquefied state. All such tanks have a maximum “holding time”, a maximum time from filling before heat gain from ambient sources causes a pressure rise sufficient to open the pressure relief valves. The “holding time” will vary from tank to tank and should be made know to handlers and vessel operators as exceeding the holding time can be dangerous. 6.3.4 Tank Container Heating 6.3.4.1 If steam heating is being undertaken, it is essential that suitable precautions are taken to prevent anyone being scalded. Each steam coil is designed to a specific maximum pressure. Pressure should never be introduced into a steam coil in excess of its maximum pressure rating as there will be a risk of frangible the steam coil and even causing serious damage to the tank shell. 6.3.4.2 Electrically heater tank containers do not have their own power source so that a power cable has to be plugged into an external power source. Most tank containers have a power cable but there is no standard length for the cable. It may be that extension cables have to be supplied to reach the power point. Care must be taken that these are in good condition and of the appropriate power rating. Most electrical systems are designed for operation from a 380 Volt three phase supply, usually 32 amps. It is important to ensure that only the correct voltage and amperage power source is used. Only the correct plug and socket should be used. 7 Documentation 7.1 When goods are offered for transport, shippers have to prepare documentation suitable for the modes of transport and the type of the cargo. The form of these documents, the particulars to be entered on them and the obligations they entail may be fixed by international and national conventions, legislation, regulations and rules which apply to the different modes of transport. 7.2 As it would be impossible for this pamphlet to cover all these requirements individuals should make themselves aware of their local legislation, statutory instruments and regulations. 7.3 Documentation does not preclude the use of electronic data processing (EDP) and electronic data interchange (EDI) transmission techniques as an aid to, or in some cases in lieu of, paper documentation. 7.4 The examples shown in Annex 4 are intended to provide guidance of the detail required. Page 26 ©ICHCA International Limited
ICHCA International Safety Panel Briefing Pamphlet No 30 8 Marking 8.1 Mandatory 8.1.1 ISO 6346 details the mandatory markings required for tank containers. Reference is drawn to the ICHCA International Safety Briefing Pamphlet 25 – “An Illustrated Guide to Container Size and Type Codes”. 8.1.2 Under ISO 6346 all tank containers that are international intermodal loading units must carry: a four capital letter code consisting of a three letter owner identification code and an equipment identifier “U”. a serial number consisting of six Arabic numerals a check digit a size / type code. This is 22T6 for the majority of all 20 ft tank containers the maximum gross and tare masses measured in kg and lb. a warning of overhead electrical danger. Note: The size/type code 22T6 relates to an ISO classification and does not correlate to the “T” codes set out in the IMDG Code. 8.1.3 Under the Convention for Safe Containers, all tank containers that are international intermodal loading units must carry a Safety Approval Plate with at least: an approval reference, the date of manufacture, a manufacturer’s identification number, maximum operation gross mass, allowable stacking weight for 1.8g transverse racking test load value the next examination date or Approved Continuous Examination Programme reference number 8.1.4 Under the Customs Convention for Containers, all tank containers that are international intermodal loading units must carry: a means to identify the owner and their address, this may be an address plate or decal or the three letter owner identification code registered with BIC a customs approval number 8.1.5 All international regulations require tank containers intended to carry dangerous goods to be inspected and tested at prescribed intervals. It is good practice for all tank container shells that are designed to carry pressurised cargoes to be similarly inspected and tested. All tank containers must carry: the date of the initial hydraulic test the date of each 2½ yearly intermediate inspection and test Page 27 ©ICHCA International Limited
Page 1 and 2: INTERNATIONAL SAFETY PANEL SAFETY B
Page 3 and 4: ICHCA International Safety Panel Br
Page 33: ICHCA International Safety Panel Br

Safe Handling of Tank Containers - ITCO

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?