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RS 941.212 DFJP Order of 19 March 2006 on measuring sets and measuring instruments of liquids other than water

Original Language Title: RS 941.212 Ordonnance du DFJP du 19 mars 2006 sur les ensembles de mesurage et sur les instruments de mesure de liquides autres que l’eau

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941.212

DFJP Ordinance on measuring sets and measuring instruments of liquids other than water 1

19 March 2006 (State 1 Er January 2013)

Federal Department of Justice and Police (DFJP),

Having regard to art. 5, para. 2, 8, para. 2, 11, para. 2, 24, para. 3, and 33 of the order of 15 February 2006 on measuring instruments (Ordinance on measuring instruments) 2 , 3

Stops:

Art. 1 1 Purpose

This Order fixes:

A.
Requirements for measuring sets and instruments for measuring liquids other than water;
B.
The procedures for placing these metering assemblies and measuring instruments on the market;
C.
Procedures to maintain the stability of measurement of these measuring sets and measuring instruments.

1 New content according to the c. I 7 of the 7 Dec DFJP O. 2012 (New legal bases in metrology), in force since 1 Er Jan 2013 ( RO 2012 7183 ).

Art. 2 Scope of application

This order applies to measuring instruments and measuring sets for the continuous and dynamic measurement of quantities (volumes or masses) of liquids other than water.

Art. 3 Definitions

For the purposes of this order:

A.
Counter: An instrument designed to measure continuously, to store and display, in the measurement conditions, the amount of liquid passing through the measurement transducer in a closed and fully loaded pipeline;
B.
Calculator: The part of a meter that receives the output signals of one or more measuring transducers and, optionally, associated measuring instruments and that displays the results of the measurement;
C.
Associated measurement instrument: An instrument connected to the calculator that measures certain quantities characteristic of the liquid in order to make a correction or conversion;
D.
Conversion device: The part of the calculator which includes associated measuring instruments and which, taking into account the characteristics of the liquid such as temperature or density measured by means of measuring instruments associated with or stored in a Memory, automatically converts:
1.
The volume of the liquid measured under the conditions of the measurement in a volume under the basic or mass conditions, or
2.
The mass of the liquid measured under the conditions of the measurement in a volume under the conditions of the measurement or in a volume under the basic conditions;
E.
Metering assembly: A measuring system comprising the meter itself and all devices that are necessary to ensure correct measurement or to facilitate measurement operations.
Art. 4 Terms of Reference

The reference conditions (basic conditions) for the determination of quantities of liquid are as follows:

A.

Pressure

101 325 Pa;

B.

Temperature

20 ° C in general, 15 ° C for fuels and fuels;

C.

Reference volume mass of standard pods

8000 kg/m 3 .

Art. 5 Obligation to declare volume at reference temperature

1 In the trade of liquid fuels and fuels on the basis of volume, the quantity of liquid considered (volume) and unit price shall relate to the reference temperature of 15 ° C and shall be declared. The specific tables in the standards set out in Annex 1 shall serve as the basis for conversion operations.

2 The obligation to report the quantity at 15 ° C specified in para. 1 does not apply to the sale of fuel to consumers in common quantities by means of road metering assemblies.

Art. 6 Essential requirements

Liquid measuring sets shall meet the essential requirements set out in Schedule 1 of the Instrument for Measurement and Schedule 2 of this Order.

Art. 7 Marketing Procedures

Compliance of liquid measuring sets with the essential requirements referred to in s. 6 may be evaluated and certified at the manufacturer's choice in accordance with one of the following procedures set out in Schedule 2 of the Ordinance on Measuring Instruments:

A.
Type examination (module B) completed by the declaration of conformity to the type on the basis of a product verification (module F);
B.
Type examination (module B) completed by the declaration of conformity to the type on the basis of quality assurance of the manufacturing process (module D);
C.
Declaration of conformity on the basis of comprehensive quality assurance and design control (module H1);
D.
Declaration of compliance on the basis of unit verification (module G).
Art. 8 Procedures for maintaining measurement stability

1 Liquid measuring sets shall be subject to subsequent verification in accordance with Annex 7, c. 1, of the Ordinance on Measuring Instruments, carried out by a cantonal audit office.

2 The duration of validity of the audit is:

A.
One year for measuring sets that must be disassembled in service;
B.
One year for liquefied gas measuring sets that are mounted on specific camions-cite;
C.
One year for temperature compensators, density calculators and add-on devices;
D.
Two years for all other measuring sets.

3 Federal Institute of Metrology 1 May establish a longer or shorter validity period for certain types of instruments if the metrological characteristics of the measuring instruments used or require it.

4 Outside the specified range, measuring sets are considered to be unofficially verified.


1 The designation of the administrative unit has been adapted to 1 Er Jan 2013 under Art. 16 al. 3 of the O of 17 Nov 2004 on Official Publications (RS 170.512.1 ).

Art. User obligations

The user assumes the responsibility specified in s. 21, para. 1, of the order on measuring instruments, but also the order:

A.
Ensure compliance with the manufacturer's instructions for the assembly and commissioning of the measuring instrument;
B.
Maintain the measuring instrument in good condition and periodically review the parts subject to wear, aging or fouling.
Art. 10 Maximum Tolerable Errors During Controls

The maximum permissible errors applicable in the challenge of results of measures within the meaning of Art. 29, para. 1, of the order on measuring instruments or in the official control of an instrument of measurement carried out outside the verification shall be the double of the maximum permissible errors set out in Annex 2 to this order.

Art. 11 Repeal of the law in force

The Order of 1 Er December 1986 on measuring devices of liquids other than water 1 Is repealed.


1 [RO 1987 216, 1997 2761 hp. II. C]

Art. 12 Transitional provisions

1 Liquid measuring sets that have been verified prior to the coming into force of this order may continue to be subject to further verification.

2 Liquid measuring sets which have been approved under the earlier right may be placed on the market and initially verified according to Annex 5, c. 2, of the order on instruments of measurement for ten years from the coming into force of this order. After these ten years, they will still be able to be checked at a later date.

Art. 13 Entry into force

This Order comes into force on October 30, 2006.

Annex 1

(art. 5, para. 1)

Conversion tables for fuels and liquid fuels

-
International OIML Recommendation 1 R 63: Oil Measurement Tables, (1994);
-
International Standard ISO 91-1:1992 2 : Petroleum measuring tables; Part 1: Tables based on reference temperatures of 15 ° C and 60 ° F.

1 OIML: International Organization of Legal Metrology. Information on OIML recommendations can be obtained from the Federal Institute of Metrology (METAS), 3003 Berne-Wabern.
2 Information on the above-mentioned standards can be obtained from the Swiss Standards Association (ASN), Bürglistrasse 29, 8400 Winterthur.


State 1 Er January 2013

Annex 2 1

(art. 6)

Specific requirements for measuring sets of liquids other than water

A Definitions

Basic conditions

Specified conditions in which the quantity of liquid measured shall be converted to the conditions of the measurement.

Road metering assembly

A set of measurements for refuelling of motor vehicles, small boats and small aircraft.

Self-service installation

An installation that allows the customer to use a metering assembly to obtain liquid for personal use.

Self-service device

A specific device that is part of a self-service installation that allows one or more metering sets to operate in this facility.

Minimum Measured Quantity (MMQ)

The quantity of minimum liquid for which the measurement is metrologically acceptable for the metering assembly.

Direct Indication

Indication, in volume or mass, corresponding to the measurement that the meter is physically able to measure.

The direct indication can be converted to an indication in another quantity using a conversion device.

Interruptible metering assembly

A metering assembly that allows the flow of liquid to be stopped easily and quickly.

Debit Span

Range between minimum flow (Q Min ) And maximum flow rate (Q Max ) .

B Metrological Requirements

1

Nominal Operating Conditions

1.1
The manufacturer shall indicate the nominal operating conditions for the flow rate.
The flow rate is subject to the following conditions:
A.
The flow rate of a metering assembly shall be in the rate range of each of its components, including the meter.
B.
Meter and metering assembly:

Table 1

Specific metering assembly

Liquid Characteristic

Report Q Max /Q Min Minimal

Road Metering Sets

Non-liquefied gas

10: 1

Liquefied gas

5: 1

Measurement Set

Cryogenic liquids

5: 1

Pipeline metering assemblies and vessel loading sets

All liquids

By use

All other measuring sets

All liquids

4: 1

1.2
The manufacturer shall indicate the properties of the liquid to be measured by the instrument under nominal operating conditions, indicating the name or type of liquid or its relevant characteristics, for example:
-
Temperature range;
-
Pressure range;
-
Bulk density;
-
Range of viscosity.
1.3
The manufacturer shall indicate the nominal operating conditions for the power supply: the nominal values of the ac power supply or the limit values of the dc power supply.
1.4
The manufacturer shall indicate the basic conditions in which the measured liquid quantity is converted.

2

Maximum Tolerable Errors

2.1
For quantities equal to or greater than 2 L, the maximum tolerated errors (EMT) on the measurements shall be as follows:

Table 2

Accuracy Class

0.3

0.5

1.0

1.5

2.5

A Metering Sets

0.3 %

0.5 %

1.0 %

1.5 %

2.5 %

B Meters

0.2 %

0.3 %

0.6 %

1.0 %

1.5 %

2.2
For quantities less than 2 L, the EMT on measurements shall be as follows:

Table 3

Measured Volume

EMT

V < 0.1 L

4 × value of Table 2, applied to 0.1 L

0.1 L ≤V < 0.2 L

4 × value of Table 2

0.2 L ≤V < 0.4 L

2 × value of Table 2, applied to 0.4 L

0.4 L ≤V < 1 L

2 × value of Table 2

1 L ≤V < 2 L

Value of Table 2, applied to 2 L

2.3
However, regardless of the measured quantity, the EMT is the largest of the following two values:
-
The absolute value of the TRM shown in Table 2 or Table 3;
-
The absolute value of the EMT for the minimum measured quantity E Min .
2.4.1
For minimum measured quantities greater than or equal to 2 L, the following conditions apply:
Condition 1
E Min Must meet the condition: E Min ³ 2 ' R , where R Is the smallest interval of the indicator device.
Condition 2
E Min Is given by the formula: E Min = (2 ' MMQ ) × (A/100), where:
-
MMQ Is the minimum measured quantity;
-
A is the numeric value shown in Table 2, let. A.
2.4.2
For minimum measured quantities that are less than 2 L, condition 1 shown in c. 2.4.1 applies, and E Min Is equal to twice the value specified in Table 3 based on the value shown in Table 2, let. A.
2.5
Translated Indication
In the case of a converted indication, the TRAs are those of Table 2, let. A.
2.6
Conversion devices
The TRAs for indications converted by a conversion device are equal to ± (A-B), A and B being the values shown in Table 2.
Parts of conversion devices that can be tested separately:
A.
Calculator
EMT, positive or negative, for indications of quantities of liquid applicable to the calculations shall be one tenth of the EMT indicated in Table 2, let. A.
B.
Associated measuring instruments
The associated measuring instruments must be accurate at least as good as the values in Table 4:

Table 4

EMT for measurement

Measurement Set Accuracy Classes

0.3

0.5

1.0

1.5

2.5

Temperature

± 0.3 ° C

± 0.5 ° C

± 1.0 ° C

Pressure

Less than 1 MPa: ± 50 kPa from 1 to 4 MPa: ± 5 % more than 4 MPa: ± 200 kPa

Density Density

± 1 kg/m 3

± 2 kg/m 3

± 5 kg/m 3

These values apply to the indication of the characteristic quantities of the liquid displayed by the conversion device.
C.
Accuracy for Calculation Function
The TRM, positive or negative, for the calculation of each characteristic quantity of the liquid is two-fifths of the value determined under the let. B.
2.7
The requirement referred to in c. 2.6, let. A, applies for any calculation, and not only for conversion.

3

Maximum tolerated effect of disturbance

3.1
The effect of an electromagnetic disturbance affecting a metering assembly is only permissible:
-
If the variation of the measurement result does not exceed the critical variation value defined in the c. 3.2;
-
If the indication of the result of the measurement presents a temporary variation which cannot be interpreted, stored or transmitted as a measurement result, or
-
If the variation of the measurement result is greater than the critical variation value, in which case the measurement set must be able to recover the result of the measurement just before the occurrence of the critical change value and to interrupt the Throughput.
3.2
The critical variation value is the largest of the following two values: one fifth of the EMT for a measured quantity or E Min .

4

Sustainability

After an appropriate test has been carried out taking into account a period estimated by the manufacturer, the following criteria must be met:
After the durability test, the variation of the result of the measure in relation to the result of the initial measurement shall not exceed the value fixed for the meters in Table 2, let. B.

5

Adéquation

5.1
For any measured quantity corresponding to the same measurement, the indications provided by various devices shall not show a deviation of more than one step when the devices have the same level. Where devices have different levels, the difference shall not exceed that of the highest echelon.
However, in the case of a self-service facility, the levels of the main measuring device of the metering assembly and the levels of the free service device shall be the same, and the results shall not deviate from each other Others.
5.2
It should not be possible to divert the measured quantity under normal conditions of use without this being obvious.
5.3
Any proportion of air or gas in the liquid cannot lead to an error variation greater than:
-
0.5 % for liquids other than potable liquids and for liquids of a viscosity not exceeding 1 mPa-s, or
-
1 % for liquid and liquid with a viscosity exceeding 1 mPa-s.
However, this variation is not required to be less than 1 % of the MMQ .
5.4
Direct selling instruments
5.4.1
A metering assembly for direct sales must be equipped with a means of resetting the display. It should not be possible to divert the measured quantity.
5.4.2
The display of the quantity that serves as the basis for the transaction must be maintained until the parties to the transaction have accepted the measurement result.
5.4.3
The metering assemblies for direct sale must be interruptible.
5.4.4
The presence, regardless of the proportion, of air or gas in the liquid shall not lead to an error variation greater than the values indicated in the c. 5.3.
5.5
Road Metering Sets
5.5.1
The display on road metering assemblies shall not be capable of being reset to zero during measurement.
5.5.2
The commencement of a new measurement shall be inhibited until the display has been reset.
5.5.3
Where a metering assembly is equipped with a price display device, the difference between the quoted price and the price calculated from the unit price and the specified quantity shall not exceed the price corresponding to E Min However, it is not necessary for this difference to be less than the smallest monetary unit.

6

Power supply failure

A metering assembly shall be equipped either with an emergency power supply device which will safeguard all the metering functions during the power supply main failure, or of a backup device, and Display of the data present, in order to allow the conclusion of the current transaction, as well as a device for stopping the flow at the time of the main power supply failure.

7

Getting into service

Table 5

Accuracy Class

Types of metering sets

0.3

Pipeline metering assemblies;

Measuring sets for the determination of the quantity of alcohol.

0.5

All measuring sets, unless otherwise indicated in this table, including:

-
Road metering assemblies (other than liquefied gases),
-
Measuring sets on tank trucks for liquids of low viscosity (≤20 mPa-s),
-
Measuring sets for the (d) loading of tanker tanks, tank cars and tanker trucks A ,
-
Measuring sets for milk,
-
Measuring sets for refuelling aircraft.

1.0

Liquefied gas metering assemblies measured at a temperature greater than or equal to -10 ° C;

Metering sets normally entering class 0.3 or 0.5 but used for liquids:

-
The temperature is less than -10 ° C or greater than +50 ° C,
-
Whose viscosity is greater than 1000 mPa-s,
-
Whose maximum volumetric flow does not exceed 20 L/h.

1.5

Liquefied carbon dioxide metering assemblies;

Metering sets of liquefied gas under pressure measured at a temperature below -10 ° C (other than cryogenic liquids).

2.5

Cryogenic liquid measuring sets (temperature below -153 ° C).

A
The measurement sets used for the recovery of duties on mineral oils in the (d) loading of ships, tank cars and tanker trucks may also belong to the accuracy class 0.3.

However, the manufacturer may indicate better accuracy for certain types of metering assemblies.

8

Units of Measure

The measured quantity shall be indicated in ml, in cm 3 , in L or l, m 3 , in g, kg or t.

1 Update according to Art. 14 of the O of 5 Oct. 2010 on Alcohol Determination, in force since 1 Er Jan 2011 ( RO 2010 4595 ).


State 1 Er January 2013