Decree of the Ministry of Industry and Trade No. 30 / 2002 Coll.
Ordinance of the Ministry of Industry and Trade laying down procedures for the verification of tanks used as measuring instruments which are on vessels and marked by EEC
Valid
Order
Effective from 21.04.2004
30
DECLARATION
Ministry of Industry and Trade
of 11 January 2002
laying down procedures for the verification of tanks used as gauges on vessels and marked by the EEC mark
The Ministry of Industry and Trade provides pursuant to Section 27 of Act No. 505 / 1990 Coll., on Metrology, as amended by Act No. 119 / 2000 Coll., (hereinafter referred to as "the Act") for the implementation of Section 9 (1) of the Act:
This decree lays down procedures for the verification of tanks used as gauges which are on inland, coastal and coastal vessels and which are marked with EEC mark ("tanks').
(1) Tanks may be marked with the EEC initial verification mark, the graphic form of which is provided for by a specific legislation, instead of the official marks laid down by a special legislature1) only if they are verified by the procedures set out in the Annex.
(2) On the basis of the results of the procedures referred to in paragraph 1, the Czech Metrology Institute or the Authorised Metrology Centre (Section 9 (2) of the Act) shall issue a certificate containing the elements listed in Part II of the Annex and a model of which is given in Part III of the Annex.
This Regulation shall enter into force on the day of the publication of the sectoral annex to the Protocol to the Europe Agreement establishing an association between the Czech Republic, of the one part, and the European Communities and their Member States, of the other part, on conformity assessment and acceptance of industrial products in the Collection of International Treaties, or on the date of the entry into force of the Treaty of Accession of the Czech Republic to the European Union, if that date is earlier.
Minister:
Doc.
Annex to Decree No. 30 / 2002 Coll.
I. GENERAL PROCEDURES FOR VERIFICATION OF THE BUSINESS
1. The volume of tanks shall be determined by:
(a) by comparison with water or other appropriate liquid, the volume of which is measured by measuring instruments or measuring instruments with meters specially calibrated for this purpose; or
(b) by calculation from the essential dimensions of the tank as established; This activity shall be supplemented, where possible, by a partial check using measured liquid volumes.
2. The tank volume verification shall be carried out by a method and measuring aids such that the relative error of the measured volume does not exceed:
(a) according to the general rule: ± 0,003 of the indicated volume,
(b) exceptionally in the case of tanks of very complicated shape which cannot be verified by direct comparison: ± 0,005 of the indicated volume.
3. The results of the verification shall be recorded in a verification sheet supplemented by diagrams and tables showing in particular the volume of the liquid, expressed in litres or decimals of cubic or cubic metres, contained in the container when the level of free liquid level is at a given height expressed in centimetres or decimals on the vertical surface of the measuring instrument.
Centimeter or decimeter tables may be supplemented by a millimeter interpolation table.
4. Each tank shall be labelled near the aperture used for measurements.
The label shall include the following information:
(a) the tank number,
(b) the total H reference height;
(c) the number of the certificate.
The label shall be made of sufficiently durable material and sealed with a lead seal bearing the EEC mark so that it cannot be removed without damaging the mark.
The characteristics and the type of EEC-mark seal shall be as laid down for the EEC sub-verification mark in a separate legislative act (2).
5. The verification sheet shall not be issued unless the structure and configuration of the tanks and coupling lines are such that, under normal operating conditions of the vessel, the tanks and coupling lines can be completely discharged or fully discharged without the air pockets below the level at which the tank is considered to be full above or below the measured liquid.
Where exemptions are allowed or if it is necessary to take any measures to ensure correct measurement, this shall be indicated in the certificate.
6. The vertical surface of the measuring device at which the heights of the liquid are determined shall, according to the general rule, pass approximately the centre of gravity of the horizontal parts of the tank, in each part where free liquid levels may occur under normal operating conditions of use.
If this condition is not met due to the design characteristics of the tank, the verification sheet shall state that the level of the liquid level in the tank can only be determined if the vessel has a zero inclination and inclination.
The axis of the guide determines the vertical position of the gauge.
This device shall ensure the correct position of the gauge; there shall be no systematic measurement errors resulting from the way this device is designed. The horizontal plane passing through the upper edge of the guide is the reference zero plane. The distance from this plane to the horizontal, constant contact plane placed vertically below the reference plane is called "total reference height H 'and shall be indicated at the top of each table.
All measures shall be taken to ensure that the position of the reference zero plane relative to the tank and the overall reference height H is constant.
A seal bearing the EEC mark shall be affixed to the reference zero plane.
7. Account must be taken of:
(a) the accuracy with which the volumes specified in the tables have been determined;
(b) the accuracy with which the level of the free surface of the liquid in the tank can be determined.
The verification sheet indicates the relative accuracy of the use of the tanks to determine the volume of the liquid they contain.
In the case referred to in point 2 (a) of this Annex, the relative inaccuracy shall not exceed ± 0,005 of the volume specified in the table; in the case referred to in point 2 (b), this inaccuracy shall not exceed ± 0,008 from the volume specified in the table.
The minimum measuring height shall be determined at least 500 mm.
8. The period of validity of the EEC-mark seal, certificate sheets and tables ends
(a) after 12 years; or
(b) as soon as the tank starts to deform or has been repaired or rebuilt in a way that could alter metrological characteristics.
The last month and year of the relevant 12-year period shall be indicated on the top of each sheet and on each table.
Verification sheets and tables shall be renewed only after further verification.
II. VERIFICATION LISTS
The certificate shall contain the following documents:
1. Own verification sheet which contains:
(a) the name and address of the authorised authority issuing the certificate;
(b) name and rank of operator,
(c) the serial number of the certificate (repeated on all other documents and labels),
(d) the date of issue of the certificate and the working address of the body responsible for the verification
(e) the date of expiry of the certificate
(f) identification of the vessel (name, registration mark, name and address of owner and year of manufacture),
(g) the list and type of documents attached;
(h) the groups of tanks for which the same table may be used;
(i) marking of tanks in which the discharge or heating bodies are located
(j) total volume,
(k) the accuracy of the results given in the tables indicating the tank volumes;
(l) the accuracy of the verification sheet data for determining the volume of liquid contained in the tanks;
(m) minimum measurable height.
2. A table expressing the volume dependence on the level height in cm or dm containing the total H reference height and the expiry date and, if available, a millimetre interpolation table for each tank or group of identical tanks.
1) Decree No. 262 / 2000 Coll., which ensures uniformity and correctness of meters and measurements.
2) Decree No. 332 / 2000 Coll., laying down certain procedures for the approval and verification of certain EEC-marked measuring instruments.
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Regulation Information
| Citation | Decree of the Ministry of Industry and Trade No. 30 / 2002 Coll., laying down procedures for the verification of tanks used as measuring instruments which are on vessels and marked by EEC |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 29.01.2002 |
|---|---|
| Effective from | 21.04.2004 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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