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GB/T 19702-2021 (GB/T19702-2021)

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GB/T 19702-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 11.100.10
C 30
GB/T 19702-2021 / ISO 15193:2009
Replacing GB/T 19702-2005
In vitro diagnostic medical devices - Measurement of
quantities in samples of biological origin -
Requirements for content and presentation of
reference measurement procedures
(ISO 15193:2009, IDT)
ISSUED ON: MARCH 09, 2021
IMPLEMENTED ON: APRIL 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3 
Introduction ... 5 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 7 
4 Presentation of a reference measurement procedure ... 10 
4.1 Elements of a reference measurement procedure ... 10 
4.2 Warning and safety precautions ... 11 
4.3 Introduction ... 11 
4.4 Scope ... 12 
4.5 Terms, definitions, symbols and abbreviated terms ... 12 
4.6 Measurement principle and method ... 13 
4.7 Check list ... 13 
4.8 Reagents and materials ... 14 
4.9 Apparatus ... 17 
4.10 Sampling and sample ... 17 
4.11 Preparation of measuring system and analytical portion ... 18 
4.12 Operation of measuring system ... 20 
4.13 Data processing ... 20 
4.14 Analytical reliability ... 22 
4.15 Special cases ... 25 
4.16 Validation of a reference measurement procedure ... 26 
4.17 Reporting ... 26 
4.18 Quality assurance ... 27 
4.19 Bibliography ... 27 
4.20 Dates of authorization and revision ... 27 
Annex A (Informative) Reference procedures for properties other than
differential and rational quantities ... 28 
Bibliography ... 30 
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 19702-2005 "In vitro diagnostic medical devices
- Measurement of quantities in samples of biological origin - Description of
reference materials". Compared with GB/T 19702-2005, the main technical
changes of this Standard are as follows:
- In the scope, add "This Standard specifies requirements for the content of
a reference measurement procedure for in vitro diagnostic medical devices
and medical laboratories." and "This Standard applies to reference
measurement procedures providing values of differential or rational
quantities. Annex A provides information on nominal properties and ordinal
quantities." (see Clause 1);
- ADD the terms and definitions of "analytical sensitivity", "detection limit" and
"calibrator" (see Clause 3);
- CHANGE the "quality assurance" element from an optional element to a
mandatory element; CHANGE the "foreword", "normative references" and
"special cases" elements from mandatory elements to optional elements
(see Table 1);
- Delete the content of 4.2.2 in "Warning and safety precautions" (see 4.2.2
of the 2005 edition);
- Modify the subclause name: Modify "4.5 Terms" to "4.5 Terms, definitions,
symbols and abbreviated terms" (see 4.5; 4.5 of the 2005 edition);
- Modify the subclause name: Modify "4.8 Reagents" to "4.8 Reagents and
materials" (see 4.8; 4.8 of the 2005 edition);
- Modify the subclause name: Modify "4.16 Verification by inter-laboratory
research" to "4.16 Validation of a reference measurement procedure" (see
4.16; 4.16 of the 2005 edition);
- In "4.10.2 Samples", add "Requirements for the primary sample shall be
specified in terms of required sample container and/or sample handling
procedure, as required to minimize changes of the measurand (e.g. loss
and/or contamination)" (see 4.10.2);
- ADD the content of "4.14.13 Intermediate precision standard deviation"
(see 4.14.13);
- Modify the title of Annex A: Modify "Reference procedures for parameters
other than quantities" to "Reference procedures for properties other than
differential and rational quantities" (see Annex A; Annex A of the 2005
edition).
This Standard, using translation method, is identical to ISO 15193:2009 "In vitro
diagnostic medical devices - Measurement of quantities in samples of biological
origin - Requirements for content and presentation of reference measurement
procedures".
China’s document which has a consistent correspondence with the international
document normatively referenced in this Standard is as follows:
- GB/T 27418-2017 Guide to the evaluation and expression of uncertainty in
measurement (ISO/IEC Guide 98-3:2008, MOD).
This Standard was proposed by National Medical Products Administration.
This Standard shall be under the jurisdiction of National Technical Committee
136 on System of Medical Clinical Test Lab and in Vitro Diagnostic System of
Standardization Administration of China (SAC/TC 136).
Drafting organization of this Standard: Beijing Institute of Medical Device
Testing.
Main drafters of this Standard: Yang Zongbing, Kang Juan, He Xueying, Wang
Huiru.
The previous editions of the standard replaced by this Standard were released
as follows:
- GB/T 19702-2005.
In vitro diagnostic medical devices - Measurement of
quantities in samples of biological origin -
Requirements for content and presentation of
reference measurement procedures
1 Scope
This Standard specifies requirements for the content of a reference
measurement procedure for in vitro diagnostic medical devices and medical
laboratories.
Note 1: It is intended that an experienced laboratory worker who follows a measurement
procedure written in accordance with this Standard can be expected to produce
measurement results with a measurement uncertainty not exceeding the stipulated
interval.
This Standard applies to reference measurement procedures providing values
of differential or rational quantities. Annex A provides information on nominal
properties and ordinal quantities.
This Standard is valid for any person, body or institution involved in one of the
various branches of laboratory medicine whose intention is to write a document
to serve as a reference measurement procedure.
Full descriptions of measurement methods are usually published in scientific
literature, in which methods are described in sufficient detail that they can be
used as the basis of a documented measurement procedure.
Note 2: In this Standard, “international measurement standard” designates a material
standard. The term “international standard” is used by WHO for reference materials.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
ISO 15194 In vitro diagnostic medical devices - Measurement of quantities
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.