AS 2360.7.1-1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Measurement of fluid flow in closed conduits Assessment of uncertainty in the calibration and use of flow measurement devices - Linear calibration relationship
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
16-11-2022
English
01-01-1993
Important note : Users cannot be edited or removed once added to your Multi user PDF.Deals with methods of assessing the uncertainty, in the calibration of methods of measuring flow rate, in closed conduits or open channels, and in one or more measurements which use the resulting calibration graph. For most of the calculations given there are existing computer programmes, e.g. linear regression methods or linear curve fitting. It is identical with and has been reproduced from ISO 7066-1:1989.
| Committee |
CE-024
|
| DocumentType |
Standard
|
| ISBN |
0 7262 8499 8
|
| Pages |
39
|
| PublisherName |
Standards Australia
|
| Status |
Superseded
|
| SupersededBy |
This International Standard deals with methods of assessing the uncertainty in the calibration of any method of measuring flow-rate, either in closed conduits or in open channels. It also deals with the estimation of the uncertainty in one or more measurements which use the resulting calibration graph.Only linear relations are considered in this part of ISO 7066; the uncertainty in non-linear relations is the subject of ISO 7066-2.Where a calibration curve is not linear, this part of ISO 7066 is therefore applicable only ifa) the variables may be transformed (for example by taking logarithms) to create a linear relationship between them;b) the range over which the relationship is established may be subdivided in such a way that one variable varies linearly with the other within each subdivision; orc) systematic deviations from linearity of the calibration graph are negligible in comparison with the uncertainty associated with the individual points forming the graph1).Although it is assumed that the uncertainty in the independent and dependent variables for which the calibration graph is constructed is normally established prior to determining the calibration graph, consideration is given in 5.3 to how these uncertainties may sometimes be determined during the calibration procedure itself, when the uncertainty in an individual calibration point is not known.For most of the calculations given in this part of ISO 7066, computer programs exist which are generally referred to in program libraries as "linear regression methods" or "linear curve fitting".Examples are given in annexes A and B of how the principles in this part of ISO 7066 may be applied.
| Standards | Relationship |
| ISO 7066-1:1989 | Identical |
First published as AS 2360.7.1-1993.
| AS 3778.1-1990 | Measurement of water flow in open channels Vocabulary and symbols |
| AS 3778.2.4-1990 | Measurement of water flow in open channels General - Estimation of uncertainty of a flow-rate measurement |
| AS 2360.0-1993 | Measurement of fluid flow in closed conduits Vocabulary and symbols (Reconfirmed 2019) |
| AS 3778.2.3-1990 | Measurement of water flow in open channels General - Determination of the stage-discharge relation |
| AS 2360.7.2-1993 | Measurement of fluid flow in closed conduits Assessment of uncertainty in the calibration and use of flow measurement devices - Non-linear calibration relationships (Reconfirmed 2019) |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.