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BS EN 45501:2015 – TC:2020 Edition

$280.87

Tracked Changes. Metrological aspects of non-automatic weighing instruments

Published By Publication Date Number of Pages
BSI 2020 358
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This European Standard has been adapted from the OIML Recommendation R 76-1, Edition 2006, Non-automatic weighing instruments Part 1 – Metrological and technical requirements – Tests by a Joint Working Group from CEN and CENELEC. It was elaborated following a standardization request from the Commission of the European Communities to CEN and CENELEC to establish a European Standards related to Council Directive 2009/23/EC on Non-automatic weighing instruments.

PDF Catalog

PDF Pages PDF Title
221 Terminology
T.1 General definitions
223 T.2 Construction of an instrument
229 T.3 Metrological characteristics of an instrument
230 T.4 Metrological properties of an instrument
231 T.5 Indications and errors
236 T.6 Influences and reference conditions
T.7 Performance test
T.8 Index of terms defined
238 T.9 Abbreviations and symbols
241 1 Scope
2 Principles of the European Standard
2.1 Units of measurement
2.2 Principles of the metrological requirements
2.3 Principles of the technical requirements
242 2.4 Application of requirements
2.5 Terminology
3 Metrological requirements
3.1 Principles of classification
3.2 Classification of instruments
243 3.3 Additional requirements for multi-interval instruments
244 3.4 Auxiliary indicating devices
246 3.5 Maximum permissible errors
247 3.6 Permissible differences between results
3.7 Test standards
248 3.8 Discrimination
3.9 Variations due to influence quantities and time
252 3.10 Type evaluation tests and examinations
257 4 Technical requirements for self- or semi-self-indicating instruments
4.1 General construction requirements
259 4.2 Indication of weighing results
260 4.3 Analog indicating device
262 4.4 Digital indicating devices
263 4.5 Zero-setting and zero-tracking devices
265 4.6 Tare devices
268 4.7 Preset tare devices
269 4.8 Locking positions
4.9 Auxiliary verification devices (removable or fixed)
4.10 Selection of weighing ranges on a multiple range instrument
270 4.11 Devices for selection (or switching) between various load receptors and/or load transmitting devices and various load measuring devices
4.12 “Plus and minus” comparator instruments
4.13 Instruments for direct sales to the public
272 4.14 Additional requirements for price-computing instruments for directsales to the public
274 4.15 Instruments similar to those normally used for direct sales to the public
4.16 Price-labeling instruments
4.17 Mechanical counting instruments with unit-weight receptor
275 4.18 Additional technical requirements for mobile instruments (see also 3.9.1.1)
276 4.19 Portable instruments for weighing road vehicles
4.20 Modes of operation
277 5 Technical requirements for electronic instruments
5.1 General requirements
5.2 Acting upon significant faults
5.3 Functional requirements
278 5.4 Performance and span stability tests
279 5.5 Additional requirements for software-controlled electronic devices
285 6 Technical requirements for non-self-indicating instruments
6.1 Minimum sensitivity
6.2 Acceptable solutions for indicating devices
286 6.3 Conditions of construction
287 6.4 Simple equal arm beam
6.5 Simple 1/10 ratio beam
288 6.6 Simple sliding poise instruments (steelyards)
289 6.7 Roberval and Béranger instruments
6.8 Instruments with ratio platforms
290 6.9 Instruments with a load-measuring device having accessible sliding poises(of the steelyard type)
291 7 Marking of instruments and modules
7.1 Descriptive Markings
294 7.2 Other marks
295 8 Metrological controls
8.1 Liability to metrological controls
8.2 Type approval
8.3 Verification of conformity to type
297 A.1 Administrative examination
A.2 Compare construction with documentation
A.3 Initial examination
A.4 Performance tests
306 A.5 Influence factors
309 A.6 Endurance test (3.9.4.3)
311 B.1 General requirements for electronic instruments under test
B.2 Damp heat, steady state
B.3 Performance tests for disturbances
318 B.4 Span stability test
320 C.1 Applicable requirements
321 C.2 General principles of testing
325 C.3 Tests
328 C.4 Test Record
330 D.1 Applicable requirements
331 D.2 General principles of testing
D.3 Tests
332 D.4 Test record
333 E.1 Applicable requirements
334 E.2 General principles of testing
E.3 Tests
E.4 Test Record
336 F.1 Weighing instruments
337 F.2 Separately tested load cells
338 F.3 Separately tested indicators and analog data processing devices
340 F.4 Compatibility checks for modules with analog output
342 F.5 Compatibility checks for modules with digital output
F.6 Examples of compatibility checks for modules with analog output
347 G.1 Devices and instruments with embedded software (5.5.1)
G.2 Personal computers and other devices with programmable or loadable software (5.5.2)
348 G.3 Data storage devices (5.5.3)
349 G.4 Test record content
BS EN 45501:2015 - TC
$280.87