JJF 1016-2014 PDF in English
JJF 1016-2014 (JJF1016-2014) PDF English
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The Rules for Drafting Program of Pattern Evaluation of Measuring Instruments
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| JJF 1016-2009 | English | 399 |
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The Rules for Drafting Program of Pattern. Evaluation of Measuring Instruments
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| JJF 1016-2002 | English | 359 |
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The Rules for Drafting Program of Pattern Evaluation of Measuring Instruments
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Rules for Drafting Norms of Pattern Evaluation of Measuring Instruments
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JJF 1016-2014: PDF in English JJF 1016-2014
NATIONAL METROLOGY TECHINICAL SPECIFICATION
OF THE PEOPLE’S REPUBLIC OF CHINA
The Rules for Drafting Program of
Pattern Evaluation of Measuring Instruments
ISSUED ON: JANUARY 23, 2014
IMPLEMENTED ON: JULY 23, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
______________________________________________________________
Jurisdiction organization: National Technical Committee on Legal Metrology
and Management Metrology
Drafting organizations: Beijing Institute of Metrology
Beijing Municipal Administration of Quality and
Technology Supervision
China Institute of Metrology
National Technical Committee on Legal Metrology and Management Metrology
is entrusted for interpretation of this Rules
Replacing JJF 1016-2009
The Rules for Drafting Program of
Pattern Evaluation of Measuring
Instruments
Drafters of this Rules:
Wang, Zigang (Beijing Institute of Metrology)
Chen, Jinghua (Beijing Municipal Administration of Quality and Technology
Supervision)
He, Zhao (China Institute of Metrology)
Table of Contents
Introduction ... 5
1 Scope ... 6
2 References ... 6
3 Terms and definitions ... 6
3.1 Single product ... 6
3.2 Series product ... 6
4 General ... 7
5 Composition of the program of pattern evaluation ... 7
6 Contents of each component of the program of pattern evaluation ... 8
6.1 Cover ... 8
6.2 Title page ... 8
6.3 Table of contents ... 8
6.4 Introduction ... 9
6.5 Scope ... 9
6.6 References ... 9
6.7 Terms ... 9
6.8 General ... 10
6.9 Legal management requirements... 10
6.10 Measurement requirements ... 11
6.11 General technical requirements ... 11
6.12 List of pattern evaluation items ... 14
6.13 Number of prototypes provided and way of using a prototype ... 14
6.14 Test methods and conditions of test items and data processing and
qualification criteria ... 15
6.15 List of measuring instruments and equipment used in test items ... 16
6.16 Pattern evaluation record format ... 16
7 Editing detailed rules ... 16
Annex A Pattern evaluation record format ... 17
Introduction
JJF 1016-2014 “The Rules for Drafting Program of Pattern Evaluation of
Measuring Instruments” is a guiding technical specification for formulating a
program of pattern evaluation. It shall also refer to relevant product standards
when formulating a program of pattern evaluation.
JJF 1016-2014 “The Rules for Drafting Program of Pattern Evaluation of
Measuring Instruments” is revised by referring to part of the content of the
International Organization of Legal Metrology (OIML) Document No. 19
“Pattern evaluation and pattern approval”, combined with the relevant
requirements put forward by the metrology administrative department.
Compared with JJF 1016-2009, in addition to editorial changes, the main
changes in the technical requirements of this Rules are as follows:
- ADD the terms “single product” and “series product” (see 3.1 and 3.2);
- PUT FORWARD the requirements for using classification codes in the
“scope” (see 6.5);
- REFINE the formulating method for electromagnetic environment (immunity)
(see 6.11.3.3);
- PUT FORWARD the clear formulating requirements for stability tests (see
6.11.4);
- ADD “Number of prototypes provided and way of using a prototype” (see
6.13); PUT FORWARD the principle requirements for the way of providing
a prototype and using a prototype;
- ADD the “List of measuring instruments and equipment used in the test item”
(see 6.15);
- ADD the “Pattern evaluation record format” (see 6.16);
- DELETE the content about the software evaluation.
The previous released versions replaced by this Rules are as follows:
- JJF 1016-2009;
- JJF 1016-2002;
- JJF 1016-1990.
The Rules for Drafting Program of
Pattern Evaluation of Measuring Instruments
1 Scope
This Rules applies to the drafting of program of pattern evaluation of measuring
instruments.
2 References
JJF 1002-2010 The rules for drafting national metrological verification
regulation
JJF 1051 Designation and classification code for measuring instrument
JJF 1094 Evaluation of the characteristics of measuring instruments
GB/T 17799.1 Electromagnetic compatibility - Generic standards - Immunity
for residential, commercial and light-industrial environments
GB/T 17799.2 Electromagnetic compatibility - Generic standards - Immunity
for industrial environments
For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments)
applies.
3 Terms and definitions
For the purpose of this Rules, the terms and definitions defined in JJF 1001
“General Terms in Metrology and Their Definitions” and the following apply.
3.1 Single product
A product of only one specification or model.
3.2 Series product
A group of products having the same measurement principle, similar structure
(appearance) and satisfying one of the following conditions:
a) the accuracy is the same, but the measurement range is different;
b) the accuracy is different, but the measurement range is the same and the
structure is the same.
4 General
The program of pattern evaluation of measuring instruments is the technical
basis for the pattern evaluation of measuring instruments, and its drafting shall
meet the following requirements:
- it shall comply with the relevant laws and regulations;
- it shall actively adopt international recommendations, international
standards and international documents;
- the requirements for each item shall have a basis, including national
metrology technical specifications, national standards, industry standards,
etc.;
- the test method shall be scientific and operable;
- the textual expression is of rigorous structure, clear hierarchy, accurate
wording;
- the terms, symbols, codes, etc. used shall be consistent and comply with
the requirements of relevant national standards;
- the formula, table, and diagram data shall be correct.
5 Composition of the program of pattern evaluation
The composition and drafting sequence of the program of pattern evaluation
are as follows:
- cover;
- title page;
- table of contents;
- introduction;
- scope;
- references;
- terms;
- general;
- legal management requirements;
- metrological requirements;
- general technical requirements;
- a list of pattern evaluation items;
- number of prototypes provided and way of using a prototype;
- test methods and conditions of the test item and data processing and
qualification criteria;
- a list of measuring instruments used in the test item;
- Annex A -- Pattern evaluation record format.
6 Contents of each component of the program of
pattern evaluation
6.1 Cover
The cover includes the name, serial number, issuing (approval) organization,
and date of implementation of the program of pattern evaluation (in English and
Chinese). The name of the measuring instrument in the name of the program
of pattern evaluation shall be the name in the “Catalogue of Measuring
Instruments administered by the People's Republic of China (Pattern Approval
Section)”.
6.2 Title page
The title page includes information such as the jurisdiction organization, drafting
organization, and drafter.
6.3 Table of contents
The table of contents shall list the serial number, title and page number of the
clause, first-level subclause and annex. The title and page number are
connected by a dotted line.
6.4 Introduction
The introduction is not numbered and shall include the following: the rules on
which the program is based; extent or situation of using technical standards
such as international recommendations, international documents, international
standards, national standards, and industry standards. If the program is revised,
it shall also include the following: a description of all or part of the other
documents replaced by the program; the serial number and name of the
program or other documents being replaced; the main technical changes
compared to the previous edition; whether it is necessary to re-evaluate or
partially evaluate the previously approved pattern of an item; the previous
released versions replaced the pattern.
6.5 Scope
The name and classification code shall be given according to JJF 1051. If the
measuring instrument may have other names, it shall be listed in detail. If
necessary, it shall clearly write out the measuring instruments that are not
applicable.
The following typical terms are recommended:
“This program of pattern evaluation is applicable to the pattern evaluation of
×××× with the classification code of ××××.”
6.6 References
The serial number and name of the references shall be listed. The list of
references is in the order of: national metrology technical regulations, national
standards, international recommendations, international documents,
international standards, and industry standards. The above documents are
arranged in sequence numbers. Finally, there shall be a note: “NOTE: For dated
references, only the edition cited applies. For undated references, the latest
edition of the referenced document (including any amendments) applies.”
When referencing international recommendations and international documents,
the Chinese translated name shall be given after the serial (year) number, and
the original name shall be given in the following parentheses.
When the references are referenced below, the way of expression is generally
“it shall be in accordance with ×××× (write only serial number, not Chinese
name) or it shall be based on ×××× (write only serial number, not Chinese
name)”.
6.7 Terms
For the terms used in the program of pattern evaluation, if they not specified in
the current national terminology technical specifications, they shall be defined
or stated in the program.
The expression of terms is shown in JJF 1002-2010.
6.8 General
The general section briefly describes the principle, construction, and
applications of measuring instruments and identifies which are the critical
components and materials that affect the metrological performance, and lists
the critical components and materials in tabular form.
Example:
List of critical components and materials
Serial number name Main performance indicators Remarks
6.9 Legal management requirements
6.9.1 Unit of measurement
It shall specify the unit of measurement for the measurement, display, printing
and storage of measuring instruments. The unit shall be the national legal unit
of measurement. If a measuring instrument measures or displays multiple
quantities, it shall be separately specified.
6.9.2 External structure
For parts that are not allowed to be adjusted by the user, it shall use a closed
structure design or reserve a position for capping and sealing. The structure
shall be designed in a form of replaceable seal and it shall specify the position
and number of seals.
For measuring instruments that require on-site verification, there shall be
structures such as interfaces and wiring terminals that facilitate on-site
verification.
6.9.3 Mark
It shall specify the legal mark of measuring instruments. The test prototype is
required to reserve a position to indicate the mark and serial number of the
manufacturing license of a measuring instrument and the pattern approval mark
and serial number of a measuring instrument.
It shall give the contents of the nameplate of measuring instruments, such as
metrological performance, working environment conditions, and relevant
information of the manufacturer. For measuring instruments of which the
accuracy and safety may be affected due to improper installation, there shall
be a mark of the installation instructions.
6.9.4 Anti-spoofing measures
If necessary, it shall put forward the requirements for anti-spoofing protective
measures in the structural design.
6.9.5 Others
It must meet other requirements related to legal management.
6.10 Measurement requirements
Based JJF 1094 and with reference to national metrology technical
specifications, the specific requirements for the metrological performance of
measuring instruments are put forward.
The metrological performance generally includes the following: measurement
range, accuracy level, maximum allowable error, measurement uncertainty,
resolution, sensitivity, response time, repeatability, and stability. It may also
include ruler spacing, gauge length, gauge spacing, scale graduation, etc.
6.11 General technical requirements
The relevant technical requirements shall be put forward with reference to the
relevant product standards and according to the working conditions and
environmental conditions of measuring instruments. The technical
requirements shall be such that:
- the metrological performance can remain relatively stable during use;
- the measurement results are reliable, simple and clear;
- deceptive behaviors are eliminated as much as possible.
General technical requirements generally include the following:
6.11.1 Appearance and structure
6.11.1.1 Readability of scale and dial numbers
It shall put forward the content to be displayed by the measuring instrument,
the form of display (the number of digits before and after the decimal point, the
time of display, etc.), and the size (width, height) of the displayed number.
6.11.1.2 Applicability of instrument support and enclosure
If necessary, it shall put forward the requirements for of the applicability of
instrument enclosure.
6.11.2 Functional requirements
It shall put forward the most basic functional requirements for measuring
instruments with reference to the relevant product standards.
6.11.3 Environmental adaptability
It shall generally be described as “The measuring instruments shall work
properly in the following environments”.
6.11.3.1 Climatic environment
It shall specify the adaptability (adaptability of metrological performance and
function) of measuring instruments under different climatic conditions. The
climatic conditions include: temperature, humidity, salt spray, mold, air
corrosion, biological damage, solar radiation, etc.
The temperature and humidity adaptability requirements put forward shall be
appropriate, and the working environment of most of measuring instruments
shall be considered.
For measuring instruments that operate only in a salt spray environment such
as a ship or a seashore, it shall put forward appropriate salt spray adaptability
requirements.
The mold, air corrosion, and biological damage adaptability requirements shall
be put forward on measuring instruments that only works in the above
environment.
For measuring instruments that may work in the open air, it shall put forward
the requirements for solar radiation and IP protection levels.
6.11.3.2 Mechanical environment
It shall specify the adaptability (it is the adaptability of metrological performance
and function after the application of rated conditions) of measuring instrument
under different mechanical environmental conditions. The mechanical
environmental conditions include: vibration, impact, collision, drop, etc.
For measuring instruments of which the working environment may have
vibration and impact sources that may affect the metrological performance, it
shall put forward the vibration and impact adaptability requirements.
For portable and mobile measuring instruments, it shall put forward the collision
and drop adaptability requirements.
6.11.3.3 Electromagnetic environment (immunity)
For measuring instruments powered by a dedicated low-voltage utility grid, a
dedicated DC power source between the low-voltage utility grid and equipment,
or a non-commercial non-common low-voltage power distribution system, it
shall carry out the electromagnetic compatibility immunity (EMS) test.
In the case of relevant special product or product electromagnetic compatibility
immunity standards, it is formulated according to the requirements of its
electromagnetic compatibility immunity standard.
In the absence of relevant special product or product electromagnetic
compatibility immunity standards, it shall put forward the requirements
according to GB/T 17799.1. For measuring instruments that are connected to
the industrial grid and working in an industrial environment, it shall put forward
the requirements on determining the test strength level according to GB/T
17799.2.
The requirements for electromagnetic compatibility immunity (EMS) are divided
into two aspects: the first is the acceptable phenomena of the test results, the
second is the strength level of the test.
The acceptable phenomena of the test results are divided into three categories.
One of them shall be selected as a phenomenon that can be accepted in the
electromagnetic compatibility immunity test of the measuring instrument. The
three categories of phenomena are:
a) the performance is normal within the specified limits;
b) the function or performance is temporarily lost or reduced, but can resume
after the disturbance ceases without the intervention of the operator, and
the data is not lost;
c) the function or performance is temporarily lost or reduced, but it requires
the intervention of the operator to resume, and the data is not lost.
NOTE: For the measuring instruments of which the metrological performance cannot be
evaluated in an electromagnetic compatibility environment, consideration shall be given to
using a simulated method to evaluate the metrological performance or not to evaluate the
metrological performance, but only to evaluate the function.
6.11.3.4 Power supply environment
For measuring instruments that are powered by a dedicated low-voltage utility
grid, a dedicated DC power source between the low-voltage utility grid and
equipment, or a non-commercial non-common low-voltage power distribution
system, it shall carry out the power supply environment adaptability test. The
test shall include the metrological performance or functional test in the case of
varying combinations of supply voltage and frequency.
6.11.4 Stability
The requirements for the stability test are put forward with reference to the
relevant product standards or metrology technical specifications. The purpose
of the test is to determine the amount of change in the metrological performance
of a measuring instrument after operating for a certain period of time or a certain
cumulative amount. It shall clearly specify the allowable amount of change in
metrological performance. The determination of the operating time or
cumulative amount shall consider the operation of the measuring instrument
during the evaluation cycle and refer to relevant product standards. It is required
that no adjustments or modifications to the prototype is made during operation.
6.12 List of pattern evaluation items
The item list for the pattern evaluation of measuring instruments is prepared
according to the legal management requirements, measurement requirements
and general technical requirements.
The list of pattern evaluation items shall include all the observation items and
test items. The observation items are the items evaluated by visual inspection,
and the test items are the items evaluated by tests.
6.13 Number of prototypes provided and way of using a prototype
6.13.1 Number of prototypes provided
Determine the number of prototypes according to the following principles.
6.13.1.1 For single products, provide one to three prototypes.
6.13.1.2 For series products, it shall consider the measuring object, accuracy,
measurement range, etc. of the series product, select representative products,
and determine the number of prototypes provided by referring to the following
principles:
a) For products with the same accuracy and different measurement range,
when selecting a prototype, it shall include the products with the upper
and lower limits of the measurement range. One to three prototypes are
provided for each product.
b) For products with different accuracies and the same measurement range
and structure, when selecting a prototype, it shall include the products
with different accuracy levels. One to three prototypes are provided for
each product.
6.13.2 Way of using a prototype
It shall specify the way of using a prototype. In principle, all test items shall be
carried out on the same (or several, if required) prototype, and the prototype
shall not be adjusted during the test period and in the test (except those
required in the program of pattern evaluation).
It can specify that stability or destructive test items can be carried out on
separate prototypes.
6.14 Test methods and conditions of test items and data processing and
qualification criteria
The metrological performance test shall be carried out under the reference
conditions and rated conditions, respectively. The reference conditions shall be
determined and the tests under rated conditions shall be carried out according
to the relevant specifications.
The test method for each test item shall be drafted in the following format:
- Test purpose
This part shall state the purpose of the test, which shall generally be written
as “the purpose of the test is to verify whether ×××× meets the requirements
of ×××× under the conditions of ××××”.
- Test conditions
This part shall state the environmental conditions applied to the measuring
instrument during the test, including temperature, relative humidity, power
source, magnetic field, etc.
- Test equipment
This part shall provide metrological characteristics and other performance
requirements for the measuring instruments and equipment used in the test,
which are included in the list in 6.15.
- Test procedure
The steps of the test are described in the form of a), b), …
- Additional procedure requirements (if necessary)
This part can describe the additional operations in each step of the test.
- Data processing
This part shall list the formula for calculating the observed test data and the
method for selecting the coefficients used in the formula. If other people’s
coefficients or data are used, it shall indicate the source for later checking.
- Qualification criteria
This part shall specify the qualification conditions of the measuring
instrument during or after the test.
6.15 List of measuring instruments and equipment used in test items
The measuring instruments and equipment used in test items are filled in by
the following list:
List of measuring instruments and equipment used in test items
Serial
number
Name of the measuring
instrument used
Measurement
range
Main performance
indicators Remarks
6.16 Pattern evaluation record format
Design the record format according to the requirements of Annex A.
7 Editing detailed rules
Implement according to the provisions of Clauses 6 and 7 of JJF 1002-2010.
Annex A
Pattern evaluation record format
I Basic information of prototype
Application organization Measuring instrument’s name
Specification model Prototype’s serial number
II Observe item record
Program of pattern evaluation clause No. Requirements + - Remarks
NOTE:
+ -
× Pass
× Fail
The observation item shall include all inspection requirements in the program of pattern
evaluation.
III Test item record
Name of test item
Page of
Start time of the test: year, month, day, hour, second
End time of the test: year, month, day, hour, second
Data record of the test
Qualification determination criteria of this test item: Conclusion of this test item:
Record of abnormalities during the test
Measurement range of the
measuring instrument used
Measurement uncertainty/accuracy
level/maximum allowable error
Name of the test equipment used Model Serial number
Ambient temperature Relative humidity Atmospheric pressure
Evaluator Reviewer
__________ END __________
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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