Regulation for material measurements
Date FOR-2007-12-21-1739
Ministry of Industry and Ministry of Fisheries
Published in 2008 Booklet 1
Commencement 01/01/2008
Edited
FOR 2016-05-03-471
Changes
For
Norway
Legal
LOV-2007-01-26-4-§7, LAW-2007-01-26-4-§8, LAW-2007-01-26-4-§10, LAW-2007-01-26- 4 §19, LAW-2007-01-26-4-§30, LAW-2007-01-26-4-§35, FOR-2007-12-20-1723-2-2, TO-2007- 12-20-1723-5-2
Promulgated
11.01.2008 kl. 15.40
Corrected 02.05.2008 (§ 28, second paragraph)
Short Title
Regulations Concerning the substantive measurements
Chapter Overview:
Chapter 1 - Introductory provisions (§§ 1-5)
Chapter 2 - Requirements for material measurements (§§ 6-30)
Chapter 3 - Final provisions (§§ 31-32)
Adopted by Metrology 21 December 2007 pursuant to the Act on 26 January 2007 no. 4 to units of measurement, measurement and standard time § 35, ref. § 7 and § 10 and § 8, § 19 and § 30 and regulation of 20 December 2007. in 1723 on measurement units and measurement § 2-2 first paragraph and § 5-2 second paragraph.
EEA information: EEA Agreement, Annex II, Sec. IX. 27b (Directive 2004/22 / EC).
Sent to notification under the Act of 17 December 2004 no. 101 on European notification of technical rules mm (EEA hearing Act) § 11, ref. § 10; see. The EEA Agreement, Annex II, Chap. XIX. 1 (Directive 98/34 / EC, as amended by Directive 98/48 / EC).
Technical rules upheld, cf. Announcement May 3rd, 2016 No.. 471.
Changes: Amended by Regulations 16 Dec 2013 No.. 1531, 1 February 2016 No.. 89, 10 Dec 2015 No.. 1458, May 3, 2016 No.. 471.
Chapter 1 - Introductory provisions
§ 1. Scope The Regulation establishes the requirements that apply to material measures of length, ref. Regulation of 20 December 2007. 1723 on units of measurement and Chapters 3 and supplementary rules concerning validation during use.
The requirements of these Regulations apply when
A)
such measurements sold or offered for sale for use as the basis for calculating the financial settlement, cf. Regulations on measurement units and measurement § 3-1 and when
B)
such measurements used as a basis for calculating the financial settlement, cf. Regulations on measurement units and measurement § 3-4.
This regulation sets no requirements for electromagnetic radiation. This is regulated by the Regulations on 10 August 1995 no. 713 on electrical equipment.
§ 2. Definitions In these regulations:
A)
Material measurements: A measuring instrument with a scale division whose aim is specified in statutory length units
B)
Measurand: The particular quantity subject to measurement
C)
Influence quantity: One size that is not the measurand but that affects the result of measurement
D)
Specified operating conditions: The values of the measurand and influence quantities making up the material measurements normal operating conditions
E)
Disturbance: An influence quantity having a value within the limits specified in the appropriate requirement but outside the material measures of length specified operating conditions. An influence quantity is nevertheless a disturbance if it is not specified in the operating conditions
F)
Critical change value: The value at which the change in the measurement result is considered undesirable
G)
Materially objectives: A device that sustained during use is intended to reproduce or supplement one of a given size
H)
Climatic Environments: The environments where material measurements can be used. It defined a range of temperature limits to account for climate differences between Member States.
§ 3. Requirements for material measurements Material measurements must at least meet the basic requirements set out in Chapter 2. Maximum permissible error for material measures of length specified in § 28
Material measurements that are approved by the former regulations, shall use meet the requirements that existed when the material length target was approved, including requirements for measurement accuracy during use.
Material measurements that are not rightfully conformity mark or has valid type approval and initial approval, are not allowed to use.
§ 4. Inspection and approval on the sale of tangible measurements Material meteyard sold or offered for sale, must have valid conformity assessment under the provisions of regulations on measurement units and measurement Chapter 4.
§ 5. Supervision of a material measurements used a tangible measurements are subject to periodic inspections. Supervision period for a material of length is three years.
Testing of material measurements in connection with the checks to be performed in accordance with relevant sections of the applicable OIML R35 and OIML R98 and Metrology procedures, unless Metrology deems it more appropriate and judged properly perform testing otherwise.
Chapter 2 - Requirements for material measurements
Section I - General requirements
§ 6. Measuring Technical protection and quality level Tangible measurements should have a high level of metrological protection so that all interested parties can have confidence in the measurement results, and it must be designed and manufactured to satisfactory quality level with regard to measurement technology and measurement data security.
§ 7. Intended use and foreseeable misuse Consideration should be given to the material measures of length intended use and the foreseeable misuse when selecting solutions adopted to meet the requirements of this chapter.
§ 8. Allowable error Under rated operating conditions and in the absence of a disturbance to measure the error does not exceed the maximum permissible errors laid down in Section II. Unless otherwise specified in Section II, expressed the maximum permissible error as the deviation from the true measurement value as a bilateral.
Under operating conditions and when there is a disturbance, the performance requirement as laid down in Section II.
If substantive measurements are intended for use in a given permanent continuous electromagnetic field, the measurement result during the experiment with amplitude-modulated electromagnetic fields lie within the maximum permissible errors.
§ 9. The manufacturer shall specify the climatic, mechanical and electromagnetic environments in which the material length measurement is intended to be used, as well as power supply and other influence quantities likely to affect its accuracy, taking into account the requirements set out in Section II.
§ 10. Climatic environmental manufacturer shall specify the upper and lower temperature limit from the values in Table 1 and indicate whether the material length measurement is designed for condensing or non-condensing humidity as well as the intended location is open or closed.
Table 1
Upper temperature limit
30 ° C
40 ° C
55 ° C
70 ° C
Lower temperature limit
5 ° C
-10 ° C
-25 ° C
-40 ° C
§ 11. Mechanical environmental Mechanical environments are classified into the following classes:
Table 2
M1 This class applies to material measures of length used in locations with minimal exposure to vibration and shock, eg. meteyard mounted on the light supporting structures exposed to negligible vibrations and shocks transmitted from local blasting, construction work, smelling with doors etc.
M2
This class includes material measurements used in locations with significant or high levels of vibration and shock, eg. caused by machines and passing vehicles in the vicinity or by the length of the target is located in the immediate vicinity of heavy machinery, conveyors etc.
M3 This class applies to material measures of length used in locations with high and very high vibration and shock levels, such measurements mounted directly on machines, conveyor belts etc.
Consideration should be given to the following influence quantities in connection with the mechanical environment:
A)
Vibration
B)
Shock.
§ 12. Electromagnetic environment Electromagnetic environments are classified into classes E1, E2 or E3 as described below in Table 2, unless otherwise provided in Section II.
Table 3
E1 This class applies to material measures of length used in locations with electromagnetic disturbances corresponding to those likely to be found in buildings used for residential and commercial purposes, and light industrial buildings.
E2 This class applies to material measures of length used in locations with electromagnetic disturbances corresponding to those likely to be found in other industrial buildings.
E3 This class applies to material measures of length which is powered by the battery of a vehicle. Such measurements shall meet the requirements of E2 and the following additional requirements:
voltage drop caused by energizing the starter circuit of internal combustion engines and voltage transients when disconnecting depleted battery while the engine is running.
Consideration should be given to the following influence quantity associated with electromagnetic environments:
A)
Voltage Interruption
B)
Short voltage reductions
C)
Voltage transients on supply lines and / or signal lines, electrostatic discharge
D)
High-frequency electromagnetic fields
E)
Transmitted radio frequency electromagnetic fields on the supply lines and / or signal lines
F)
Surge on supply lines and / or signal lines.
Consideration should be given to the following additional influence quantities as appropriate:
A)
Voltage Variation
B)
Variations in mains frequency
C)
Power frequency magnetic fields
D)
Other sizes that can affect of length accuracy significantly.
§ 13. Basic rules for testing and the determination of errors The basic requirements specified in § 8 shall be verified for each relevant influence quantity. Unless otherwise specified in Section II, these basic requirements when each influence quantity is applied and its effect evaluated separately, all other influence quantities being kept relatively constant at their reference values.
Metrological tests shall be carried out during and after the application of the influence quantity, whichever corresponds to the normal operating state of the material length measurement when that influence quantity is likely to occur.
§ 14. Humidity According to the climatic environment the material length measurement is intended to be used, may be the most appropriate test stream either the damp heat (non-condensing) or damp heat cyclic (condensing).
Cyclic test varying moisture is appropriate where condensation is important or when penetration of vapor will be accelerated by ventilation. When conditions where non-condensing humidity is important, test the damp heat appropriate.
§ 15. Reproducibility If a material measurements used to measure the same measurand but in different places and by different users, the results of successive measurements in close agreement. Difference between the measurement results shall be small relative to MPE.
§ 16 Repeatability The measurand have the same value and the measuring conditions are unchanged, the subsequent measurement results correspond well. Difference between the measurement results shall be small relative to the maximum permissible error.
§ 17. Resolution and sensitivity A materially measurements shall be sufficiently sensitive and must be sufficient for the intended measurement task.
§ 18. Durability is a tangible measurements shall be constructed so that its metrological characteristics are sufficiently stable for a period estimated by the manufacturer, provided that it is installed, maintained and used according to manufacturer instructions and in the environment it is intended for .
§ 19. Reliability is a tangible measurements must be designed so that the effect of a defect that would lead to an inaccurate measurement result, is reduced as much as possible, unless such mistakes are obvious.
§ 20. Suitability A materially measurements should be:
A)
suitable for its intended use, taking into account of the practical working conditions, and it shall not be unreasonable demands of the user to obtain a correct measurement result
B)
Robust and made of materials suitable for the intended operating conditions
C)
Constructed so that measurement function to be controlled by the length measurement is marketed and used. If necessary, special equipment or software for this control shall be part of the length measurement. The test procedure shall be described in the user manual
D)
insensitive to small variations in the value of the measurand, or to react in an appropriate way if the length measurement is intended to measure the value of the measurand that is constant over time.
A materially measurements should not be of such a nature that it can easily be used for fraud, and the possibility of unintentional misuse shall be minimal.
If a material measurements have associated software with other functions besides the measuring function, the software that is critical for the metrological characteristics shall be identifiable and shall not be inadmissibly influenced by the associated software.
§ 21. Protection against corruption If the material length measurement is connected to another device directly or by remote connection, should its metrological characteristics are not affected by the arrangement is inappropriate.
Components that is critical for metrological characteristics shall be designed so that they can be secured. Security measures should make it possible to determine whether the intervention has taken place.
Software that is critical for metrological characteristics shall be identified as such and shall be secured. Software identification shall be easily obtained from the length measurement. Evidence that there has been an intervention shall be available for a reasonable period.
Measurement data, software that is critical for measurement characteristics and metrologically significant parameters stored or transmitted shall be adequately protected against accidental or intentional corruption.
§ 22. Information to be applied or follow the material length measurement is a tangible measurements shall bear the manufacturer's mark or name, and information about its accuracy. To the extent applicable, the following information shall also be applied length measurement:
A)
Relevant information on conditions of use
B)
Measuring Capacity
C)
Measuring range
D)
Identity Brand
E)
Number of the certificate of EC type-approval or EC design examination
F)
information about options that provide test results comply with the provisions of the regulations issued regarding regulated metrological control.
If measurements of dimensions too small or its too sensitive to the relevant information can be applied, they shall be applied on any packaging and in the accompanying documents required by these regulations.
Details of operation shall comply with the substantive length measurement with less length measurement is so simple that this is unnecessary. The information must be easily understood, and shall include where relevant following:
A)
Specified operating conditions
B)
Mechanical and electromagnetic environment class
C)
Upper and lower temperature limit, whether condensation is acceptable or not, open or closed location
D)
instructions for installation, maintenance, repairs, permissible adjustments
E)
Directions for correct operation and any special conditions of use
F)
Conditions for compatibility with interfaces, sub-assemblies or measuring instruments.
All marks and inscriptions shall be clear and unambiguous and should not be removed or moved. Groups of identical measurements are not required individual manuals.
§ 23. Display of measured value Unless otherwise specified in Section II, the minimum share for a measured value to the form 1 × 10n, 2 × 10n or 5 × 10n, where n is an integer or zero. Of measurement or its symbol shall be shown close to the numerical value.
Shall be used measurement units and symbols that are in accordance with the provisions of regulations on measurement units and measurement.
The material length measurement can also view other measurement units than the current under the provisions of regulations on measurement units and measurement Section 2
§ 24. Display of results presented result shall be easily readable under normal conditions. Further information can be displayed on the condition that it can not be confused with the metrologically controlled results.
By copy the print or record shall also be easily legible and could not be removed.
§ 25. Further processing of data to conclude the trading transaction Tangible measurements shall on a durable means the measurement result accompanied by information to identify the particular transaction, when the measurement can not be repeated and the material length measurement is normally intended to be used when one party the transaction is absent.
Additionally, a durable proof of the measurement result and the information to identify the transaction shall be available on request the measurement is concluded.
§ 26. Conformity assessment is a tangible measurements shall be constructed so that it can easily be considered whether it complies with the relevant requirements of these regulations.
Section II - Specific requirements
§ 27. Reference Conditions For measuring tape with a length of at least five meters, the maximum permissible errors observed when applying a pulling force of fifty newtons or other force values as specified by the manufacturer and marked on the tape, or, in the case of rigid or semi-rigid targets without the need for traction.
Reference temperature is 20 ° C, unless otherwise specified by the manufacturer and marked on the target.
§ 28. Maximum permissible errors Maximum permissible errors, positive or negative in mm, between two non-adjacent scale marks is (a + bL), where L is the value of the length rounded up to the nearest whole meter, and a and b are given in table 1 below. If a final interval is limited by a surface increases the MPE for any distance beginning at this point, with the value c given in Table 4. Table 4
Accuracy class a (mm)
b (mm)
c (mm)
I
0.1
0.1
0.1
II 0.3
0.2
0.2
III 0.6
0.4
0.3
D - Fawlty Towers for bearing strip up to and including 30 m
1.5
zero
zero
S - Fawlty Towers for tankbåndmål for each 30 m length when the tape is resting on a flat surface
1.5
zero
zero
Accuracy Class D applies to the bearing band / vertical combinations. If the nominal measuring tape length exceeds 30 m, allowed an additional ia of 0.75 mm for each 30 m tape length. Bearing Tapes may also be of class I or II; in that case MPE ± 0.6 mm when applying the formula gives a value of less than 0.6 mm, for any length between two scale marks, one of which is on nedsenkingsdelen and the other on the oil belt.
Maximum permissible error for the length between adjacent scale marks, and the maximum permissible difference between two adjacent intervals are given in Table 5 below.
Table 5
Maximum permissible error or difference in millimeters for accuracy class
I
II
III
I≤ 1mm
0.1
0.2
0.3
1 mm <i ≤ 1 cm
0.2
0.4
0.6
If a ruler to be folded, the joints could cause an overall error in addition to the above, of 0.3 mm for class II, and 0.5 mm for class III.
§ 29. Materials Materials to material measures of length shall be such that length variations due to temperature variations of up to ± 8 ° C about the reference temperature do not exceed the MPE. This does not apply to Class S and Class D measurements where the manufacturer expects varmeutvidelsens corrections, if necessary, be applied to the observed readings.
Measure made of material whose dimensions may change significantly when subjected to variations in relative humidity can be removed only with Class II or III.
§ 30. Markings The nominal value shall be specified on the target. Millimeter scales shall be numbered at every centimeter and measure with a larger scale interval than 2 cm shall have all scale marks numbered.
Chapter 3 - Final provisions
§ 31 Fine Violation of this regulation may result in imposition of fines meted out under the provisions of regulations on measurement units and measurement Section 7
§ 32. Commencement This Regulation shall enter into force on 1 January 2008.
