CEN ISO/TS 16491:2012
(Main)Guidelines for the evaluation of uncertainty of measurement in air conditioner and heat pump cooling and heating capacity tests (ISO/TS 16491:2012)
Guidelines for the evaluation of uncertainty of measurement in air conditioner and heat pump cooling and heating capacity tests (ISO/TS 16491:2012)
ISO/TS 16491:2012 gives guidance on the practical applications of the principles of performance measurement of air-cooled air-conditioners and air-to-air heat pumps as described in ISO 5151, ISO 13253, and ISO 15042.
Leitlinien für die Beurteilung der Messunsicherheit bei der Prüfung der Kühl- und Heizleistung von Klimaanlagen und Wärmepumpen (ISO/TS 16491:2012)
Diese Technische Spezifikation enthält eine Anleitung zu den praktischen Anwendungen jener Prinzipien bei der Leistungsbemessung von luftgekühlten Luftkonditionierungsgeräten und Luft/Luft-Wärmepumpen, die in ISO 5151, ISO 13253 und ISO 15042 beschrieben sind.
Lignes directrices pour l'évaluation de l'incertitude de mesure lors des essais de puissance frigorifique et calorifique des climatiseurs et des pompes à chaleur (ISO/TS 16491:2012)
L'ISO/TS 16491:2012 donne des lignes directrices pour les applications pratiques des principes de mesure de la performance des climatiseurs à condensation par air et des pompes à chaleur air/air tels que décrits dans l'ISO 5151, l'ISO 13253 et l'ISO 15042.
Smernice za vrednotenje merilne negotovosti preskusov učinkovitosti hlajenja in ogrevanja klimatskih naprav in toplotnih črpalk (ISO/DTR 16491:2012)
Ta tehnična specifikacija vsebuje navodila za praktično uporabo načel za oceno delovanja zračno hlajenih klimatskih naprav in toplotnih črpalk zrak-zrak, kot je opisano v standardih ISO 5151, ISO 13253 in ISO 15042.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2014
6PHUQLFH]DYUHGQRWHQMHPHULOQHQHJRWRYRVWLSUHVNXVRYXþLQNRYLWRVWLKODMHQMDLQ
RJUHYDQMDNOLPDWVNLKQDSUDYLQWRSORWQLKþUSDON ,62'75
Guidelines for the evaluation of uncertainty of measurement in air conditioner and heat
pump cooling and heating capacity tests (ISO/DTR 16491:2012)
Leitfaden zur Bestimmung der Messunsicherheit von Kälte- und Heizleistungsprüfungen
bei Luftkonditionierern und Wärmepumpen (ISO/DTR 16491:2012)
Lignes directrices pour l'évaluation de l'incertitude de mesure lors des essais de
puissance frigorifique et calorifique des climatiseurs et des pompes à chaleur (ISO/DTR
16491:2012)
Ta slovenski standard je istoveten z: CEN ISO/TS 16491:2012
ICS:
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
27.080 7RSORWQHþUSDONH Heat pumps
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL SPECIFICATION
CEN ISO/TS 16491
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
December 2012
ICS 23.120; 27.080
English Version
Guidelines for the evaluation of uncertainty of measurement in
air conditioner and heat pump cooling and heating capacity tests
(ISO/TS 16491:2012)
Lignes directrices pour l'évaluation de l'incertitude de Leitlinien für die Beurteilung der Messunsicherheit bei der
mesure lors des essais de puissance frigorifique et Prüfung der Kühl- und Heizleistung von Klimaanlagen und
calorifique des climatiseurs et des pompes à chaleur Wärmepumpen (ISO/TS 16491:2012)
(ISO/TS 16491:2012)
This Technical Specification (CEN/TS) was approved by CEN on 20 November 2012 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 16491:2012: E
worldwide for CEN national Members.
Contents Page
Foreword . 3
Foreword
This document (CEN ISO/TS 16491:2012) has been prepared by Technical Committee ISO/TC 86
"Refrigeration and air-conditioning" in collaboration with Technical Committee CEN/TC 113 “Heat pumps and
air conditioning units” the secretariat of which is held by AENOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO/TS 16491:2012 has been approved by CEN as a CEN ISO/TS 16491:2012 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 16491
First edition
2012-12-01
Guidelines for the evaluation of
uncertainty of measurement in air
conditioner and heat pump cooling and
heating capacity tests
Lignes directrices pour l'évaluation de l'incertitude de mesure lors des
essais de puissance frigorifique et calorifique des climatiseurs et des
pompes à chaleur
Reference number
ISO/TS 16491:2012(E)
©
ISO 2012
ISO/TS 16491:2012(E)
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
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Published in Switzerland
ii © ISO 2012 – All rights reserved
ISO/TS 16491:2012(E)
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 3
5 Method of calculation . 4
5.1 Calibration . 4
5.2 Correction . 4
5.3 (Instrumental) drift . 4
5.4 Stability . 4
5.5 Uncertainty due to the lack of homogeneity . 4
6 Explanatory notes useful in laboratory application . 4
6.1 Uncertainty . 4
6.2 Confidence level . 4
6.3 Evaluation of errors . 5
6.4 Steps in evaluation of uncertainty in measurements . 5
6.5 Uncertainty of measurements . 5
7 Evaluation of uncertainty — Calorimeter room method . 7
7.1 Cooling capacity test . 8
7.2 Heating capacity test . 11
8 Evaluation of uncertainty — Air enthalpy method . 14
8.1 Cooling capacity test . 15
8.2 Heating capacity test . 16
8.3 Uncertainty of measurement on the air volume flow rate . 18
Annex A (normative) Uncertainty budget sheets . 19
Annex B (informative) Determination of indirect contribution to uncertainty, U(C ) . 27
I
Bibliography . 28
ISO/TS 16491:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of document:
an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO/TS 16491 was prepared by Technical Committee ISO/TC 86, Refrigeration and air-conditioning,
Subcommittee SC 6, Air-cooled air conditioners and air-to-air heat pumps.
iv © ISO 2012 – All rights reserved
ISO/TS 16491:2012(E)
Introduction
This Technical Specification is intended to be a practical guide to assist laboratory personnel in evaluating the
uncertainties in the measurement of the cooling and heating capacities of air conditioners and heat pumps. It
contains a brief introduction to the theoretical basis for the calculations, and contains examples of uncertainty
budget sheets that can be used as a basis for the determination of the uncertainty of measurement.
TECHNICAL SPECIFICATION ISO/TS 16491:2012(E)
Guidelines for the evaluation of uncertainty of measurement in
air conditioner and heat pump cooling and heating capacity
tests
1 Scope
This Technical Specification gives guidance on the practical applications of the principles of performance
measurement of air-cooled air-conditioners and air-to-air heat pumps as described in ISO 5151, ISO 13253,
and ISO 15042.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO/IEC Guide 99, International vocabulary of metrology — Basic and general concepts and associated terms
(VIM)
ISO/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in
measurement (GUM:1995)
ISO 3534-1, Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in
probabil
...
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