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JJF 2026-2023 English PDF

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JJF 2026-2023: Calibration Specification for Electric Pneumatic Tourniquet Equipment
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JJF 2026-2023English409 Add to Cart 4 days [Need to translate] Calibration Specification for Electric Pneumatic Tourniquet Equipment Valid JJF 2026-2023

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Basic data

Standard ID JJF 2026-2023 (JJF2026-2023)
Description (Translated English) Calibration Specification for Electric Pneumatic Tourniquet Equipment
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 18,19
Date of Issue 2023-03-15
Date of Implementation 2023-09-15
Issuing agency(ies) State Administration for Market Regulation

JJF 2026-2023: Calibration Specification for Electric Pneumatic Tourniquet Equipment

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
National Metrology Technical Specifications of the People's Republic of China Calibration specification for electric pneumatic tourniquet machine Released on 2023-03-15 2023-09-15 Implementation Released by the State Administration for Market Regulation Calibration specification for electric pneumatic tourniquet machine Tourniquet Equipment Responsible unit: National Pressure Measurement Technical Committee Main drafting unit: General Station of Drug Instrument Supervision and Inspection of Joint Logistics Support Force General Hospital of Chinese People's Liberation Army Shanghai Institute of Metrology and Testing Technology Participating in the drafting unit: The Fourth Medical Center of the General Hospital of the Chinese People's Liberation Army Zhejiang Medical Device Evaluation Center This specification entrusts the National Pressure Measurement Technical Committee to be responsible for interpretation The main drafters of this specification: Li Yongxue (Joint Logistics Support Force Drug Instrument Supervision and Inspection Center) Juan Zhou (General Hospital of the Chinese People's Liberation Army) Tu Limeng (Shanghai Institute of Metrology and Testing Technology) Huang Chengfeng (General Station of Drug Instrument Supervision and Inspection of Joint Logistics Support Force) Participating drafters: Shuai Wanjun (The Fourth Medical Center, General Hospital of the Chinese People's Liberation Army) Duan Xin'an (General Station of Drug Instrument Supervision and Inspection of Joint Logistics Support Force) Zhu Wenwu (Zhejiang Medical Device Evaluation Center)

Table of contents

Introduction (Ⅱ) 1 Scope(1) 2 Terms and units of measurement (1) 2:1 Pressure fluctuation (1) 2:2 Units of measurement(1) 3 Overview(1) 4 Metrological characteristics(1) 4:1 Working pressure range(1) 4:2 Setting range of hemostasis time(1) 4:3 Pressurization rise time(1) 4:4 Consistency between pressure setting value and cuff pressure indication (1) 4:5 Air tightness(1) 4:6 Indication error of cuff pressure (2) 4:7 Pressure fluctuations(2) 5 Calibration conditions(2) 5:1 Environmental conditions (2) 5:2 Measuring standards and other equipment(2) 6 Calibration Items and Calibration Methods(2) 6:1 Pre-calibration checks(2) 6:2 Pressurization rise time(4) 6:3 Consistency between pressure setting value and cuff pressure indication(4) 6:4 Airtightness(4) 6:5 Indication error of cuff pressure(5) 6:6 Pressure fluctuations(5) 7 Expression of Calibration Results(6) 7:1 Calibration records(6) 7:2 Processing of calibration results (6) 8 Recalibration interval(6) Appendix A Example of Calibration Uncertainty Evaluation of Cuff Pressure Indication of Electric Pneumatic Tourniquet Machine (7) Appendix B Calibration Record Format(9) Appendix C Calibration Certificate Inner Page Format (11)

Introduction

JJF 1071 "Rules for Compilation of National Metrology and Calibration Standards", JJF 1001 "General Metrology Terms and Definitions", JJF 1059:1 "Assessment and Expression of Measurement Uncertainty" together constitute the basic series of specifications formulated by this specification: The determination of the measurement characteristics of the electropneumatic tourniquet machine in this specification mainly refers to BS7088:1989 Pneumatic hemostasis This specification is published for the first time: Calibration specification for electric pneumatic tourniquet machine

1 Scope

This specification applies to the calibration of electric pneumatic tourniquet machines, pneumatic tourniquet machines pressurized manually, liquefied or compressed gas Calibration of the blood band machine (the pressurized form is non-electric) can also refer to this specification:

2 Terms and units of measurement

The half-width of the cuff pressure change band when the electric pneumatic tourniquet machine is in working condition: 2:2 Units of measurement The pressure measurement unit used by the electric pneumatic tourniquet machine is kPa; the time measurement unit is min:

3 Overview

The electric pneumatic tourniquet machine (hereinafter referred to as the tourniquet machine) inflates and deflates the tourniquet cuff through the pressure control unit Control and adjust the pressure in the tourniquet cuff, and its pressure-sensing element monitors the controlled cuff pressure and displays it on the monitor: show it: The tourniquet machine is mainly used for limb surgery, providing specific hemostatic pressure (working pressure), and reducing surgical bleeding At the same time, it provides a bloodless surgical field for surgery: According to the number of pressurized channels, the tourniquet machine can be divided into single-channel and double-channel tourniquet machines; according to the degree of automation, it can be divided into full Automatic and semi-automatic pneumatic tourniquet machines, automatic tourniquet machines have pressure compensation function, while semi-automatic tourniquet machines do not ready for this function:

4 Metrological characteristics

4:1 Working pressure range The working pressure range should be able to cover 6:7kPa~66:7kPa: Note: The upper limit of the working pressure of the tourniquet machine with a wide cuff can be appropriately lowered, such as as low as 63:3kPa: 4:2 Setting range of hemostasis time The setting range of hemostasis time should be able to cover (5~120)min: 4:3 Pressurization rise time Under specified conditions, the time it takes for the working pressure to rise from atmospheric pressure to 90% of the maximum working pressure setting The interval should not be greater than 20s: 4:4 Consistency between pressure setting value and cuff pressure indication The difference shall not exceed ±2:0kPa: NOTE: Tourniquet machines that share the same indicator for pressure setting and cuff pressure indication do not need to be calibrated for this feature: 4:5 Air tightness Under 90% of the maximum working pressure, for the semi-automatic tourniquet machine, the drop rate of the cuff pressure shall not exceed

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