EN ISO 7278-1:1995

Liquid hydrocarbons - Dynamic measurement - Proving systems for volumetric meters - Part 1: General principles (ISO 7278-1:1987)

The purpose of proving a meter is to determine its relative error or its meter factor as a function of flow rate and other parameters such as temperature, pressure and viscosity. The following types of proving systems are in use: tank prover systems; pipe provers, bidirectional and unidirectional; master meters. They can be used either connected (fixed or mobile) to the metering station or in a central proving station.

Flüssige Kohlenwasserstoffe - Dynamische Messung - Prüfsysteme für volumetrische Meßgeräte - Teil 1: Allgemeine Grundlagen (ISO 7278-1:1987)

Dieser Teil der ISO 7278 enthält die allgemeinen Grundlagen der Prüfsysteme für Meßgeräte zur dynamischen Messung von Kohlenwasserstoffen.

Hydrocarbures liquides - Mesurage dynamique - Systèmes d'étalonnage des compteurs volumétriques - Partie 1: Principles généraux (ISO 7278-1:1987)

La présente partie de l'ISO 7278 établit des principes généraux pour les systèmes d'étalonnage des appareils de mesure utilisés pour le mesurage dynamique des hydrocarbures liquides.

Tekoči ogljikovodiki - Dinamična meritev - Sistemi za overjanje volumetrov - 1. del: Splošna načela (ISO 7278-1:1987)

General Information

• Status: Published
• Publication Date: 03-Oct-1995
• ICS: 75.180.30 - Volumetric equipment and measurements
• Technical Committee: CEN/TC 19 - Petroleum products, lubricants and related products
• Drafting Committee: CEN/TC 19 - Petroleum products, lubricants and related products
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 08-Oct-2010
• Completion Date: 08-Oct-2010
• Ref Project: SIST EN ISO 7278-1:1998 - Liquid hydrocarbons - Dynamic measurement - Proving systems for volumetric meters - Part 1: General principles (ISO 7278-1:1987)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 7278-1:1998
01-maj-1998
7HNRþLRJOMLNRYRGLNL'LQDPLþQDPHULWHY6LVWHPL]DRYHUMDQMHYROXPHWURYGHO
6SORãQDQDþHOD,62
Liquid hydrocarbons - Dynamic measurement - Proving systems for volumetric meters -
Part 1: General principles (ISO 7278-1:1987)
Flüssige Kohlenwasserstoffe - Dynamische Messung - Prüfsysteme für volumetrische
Meßgeräte - Teil 1: Allgemeine Grundlagen (ISO 7278-1:1987)
Hydrocarbures liquides - Mesurage dynamique - Systemes d'étalonnage des compteurs
volumétriques - Partie 1: Principles généraux (ISO 7278-1:1987)
Ta slovenski standard je istoveten z: EN ISO 7278-1:1995
ICS:
75.180.30 Oprema za merjenje Volumetric equipment and
prostornine in merjenje measurements
SIST EN ISO 7278-1:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 7278-1:1998

---------------------- Page: 2 ----------------------

SIST EN ISO 7278-1:1998

---------------------- Page: 3 ----------------------

SIST EN ISO 7278-1:1998

---------------------- Page: 4 ----------------------

SIST EN ISO 7278-1:1998
ISO
INTERNATIONAL STANDARD
7278-1
First edition
1987-03-15
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXaYHAPOflHAR OPTAHM3A~MR fl0 CTAHjJAPTM3AqMM
Liquid hydrocarbons - Dynamit measurement -
Proving Systems for volumetric meters -
Part 1:
General principles
Hydrocarbures liquides
- Mesurage dynamique - Systemes d’etalonnage des compteurs
vofum&iques -
Partie 1: Principes ghkaux
Reference number
ISO 7278-1 : 1987 (E)

---------------------- Page: 5 ----------------------

SIST EN ISO 7278-1:1998
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bedies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch 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, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 7278-1 was prepared by Technical Committee ISO/TC 28,
Petroleum products and lubricants.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organkation for Standardkation, 1987
Printed in Switzerland

---------------------- Page: 6 ----------------------

SIST EN ISO 7278-1:1998
INTERNATIONAL STANDARD ISO 7278-1: 1987 (E)
Dynamit measurement -
Liquid hydrocarbons -
Proving Systems for volumetric meters -
Part 1:
General principles
for all liquids and flow rates, provided that the master meter
0 Introduction
is proved against acceptable proving Systems under condi-
This document is the first part of an International Standard on tions which simulate those under which it will operate.
proving Systems for meters used in dynamic measurement of
Sometimes, a meter is used as a means of standardization
liquid hydrocarbons. Future Parts of ISO 7278 will provide more
of transfer; this equipment is generally known as a “master
detailed descriptions of pipe provers, tank provers and pulse
meter”.
interpolation techniques; these Parts are in preparation. Parts
covering other aspects or types of proving Systems may be
3.2 Provers tan be used either connected (fixed or mobile) to
added as the need arises.
the metering Station or in a central proving Station to which the
meters or the measures tan be taken to be proved.
The purpose of proving a meter is to determine its relative error
or its meter factor as a function of flow rate and other
3.3 In Order to limit the maximum uncertainty to + 0,Ol %
Parameters such as temperature, pressure and viscosity.
when using a pulse generator for proving, at least
10 000 pulses shall be obtained from the meter per proving run.
The purpose of determining the relative error is to find out
This number of pulses tan be reduced by pulse-interpolation
whether the meter is working within prescribed or specially ac-
techniques which allow either the use of meters with fewer
cepted limits of error, whereas the meter factor is used to cor-
pulses per unit volume or reduction of the prover volume.
rect any error in the indication of a meter by calculation.
4
General considerations
1 Scope and fi
...