In Poland, the authority competent to perform preliminary and periodic tests and tests after repairing of DPPL is the Transport Technical Supervision, and the entity authorised to perform tests of DPPL construction type is the Packaging Research and Development Centre (COBRO) in accordance with the Agreement on the carriage of dangerous goods by road. Tests of construction types are comprehensive and cover endurance tests constituting a simulation of possible events which may occur during exploitation and aim to confirm admission of a given type of IBC (DPPL) to carriage of specific dangerous goods or a group of dangerous goods. Tests of construction types are conducted by the “competent authority” or an authorised unit /COBRO/. A positive result of the tests gives a right to mark each item of IBC (DPPL) corresponding to its model construction type with “UN” marking.
Requirements for construction, testing and exploitation are defined by the provisions of the ADR Agreement, in sections 4.1 and 6.5, and in the scope of utilisation period, in particular in the following points:
22.214.171.124 – indicated maximum exploitation period of such packaging, that is 5 years from its production date; exception: when the competent authority determines shorter period resulting from the properties of transported material – some DPPL used to transport nitric acid can be exploited only for 2 years
126.96.36.199.1 – the indicated period 2.5 year for indirect test
Each metal DPPL, synthetic DPPL and DPPL consisting of synthetic tank is subject to preliminary and period tests
Tests of DPPL after repair
All repairs are made in workshops authorised by TDT and on the basis of individually determined documentation. DPPL damaged by hit for other reason should be repaired in such way and scope so that it corresponds to construction type. Synthetic DPPL and inner containers of complex DPPL are not subject to repair and should be replaced. After repair, DPPL is subject to full tests and trials in such scope as during the preliminary test. New dates of periodic tests may be determined, starting from the date of completing tests after the repair.
After periodic tests performed by TDT, if the result is positive, the containers are marked in the following manner:
- XX/YY/ inspector feature /ZZZ
- XX – month during which leakage test was performed,
- YY – the last two numbers of a year during which the aforementioned test was performed
- Inspector feature TDT
- ZZZ – consecutive number of a protocol of the TDT inspector performing the test in a given calendar year
Protocols are prepared from the conducted tests and transferred to the owner of DPPL. The protocol of the test and trail should be kept at least until the next test or trial.
Detailed provisions pertaining to packages made from synthetics
DPPL should not be filled and used for transport after the lapse of the expiry date of the last periodic test or control. DPPL filled before the lapse of the expiry date of the last periodic control can be transported for period no longer than three months after the expiry date of the last periodic test or control. Additionally, DPPL can be transported after the lapse of the expiry date of the last periodic test or control:
– after emptying and prior to cleaning in order to perform required test or control before being filled again.
– unless the competent authority did not decide otherwise, in period no longer than 6 months starting from the date of the expiry date of the last periodic test or control allowing for returning dangerous materials or their remainders in order to liquidate them or for their secondary usage.
Our company performs direct and periodic tests of DPPL containers. We have an indispensable equipment and experience allowing for the performance of tests in accordance with the provisions and requirements of the ADR Agreement