GB/T 33888-2017 English PDF

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GB/T 33888-2017: Non-destructive testing instruments -- Characterization and verification of ultrasonic thickness measuring equipment
Status: Valid

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Basic data

Standard ID: GB/T 33888-2017 (GB/T33888-2017)
Description (Translated English): Non-destructive testing instruments -- Characterization and verification of ultrasonic thickness measuring equipment
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N77
Classification of International Standard: 19.100
Word Count Estimation: 18,148
Date of Issue: 2017-07-12
Date of Implementation: 2018-02-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 33888-2017: Non-destructive testing instruments -- Characterization and verification of ultrasonic thickness measuring 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.
Non-destructive testing instruments - Characterization and verification of ultrasonic insulation measuring equipment ICS 19.100 N77 National Standards of People's Republic of China Nondestructive testing equipment Characteristics and Verification of Ultrasonic Thickness Gauge 2017-07-12 released 2018-02-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 General requirements 1 Technical specification for ultrasonic thickness measurement equipment 5.1 General conditions 1 Common attributes 1 5.3 Display 2 5.4 Transmitter 2 5.5 Receiver 2 5.6 Other information 2 6 calibration test block 3 6.1 General conditions 3 6.2 Materials 3 6.3 shape and size 3 7 ultrasonic thickness measurement equipment performance requirements 4 8 probe 5 9 Group 1 Test 5 9.1 Basic requirements 5 9.2 Equipment requirements for Group 1 testing 6 9.3 Temperature stability 6 9.4 Low battery warning 6 9.5 Power working time 6 9.6 Operating voltage range 7 9.7 Operating current range 7 9.8 Operating temperature range 7 9.9 pulse repetition frequency, PRF 7 9.10 Transmit pulse shape, rise time and peak voltage 8 9.11 Receiver operating frequency range 9 9.12 minimum and maximum measured thickness 9 9.13 Accuracy and resolution 9 9.14 Sound speed range setting (calibration) 9 9.15 Calibration mechanism 9 9.16 Calibration Settings Storage 9 9.17 data storage 10 9.18 print 10 9.19 Display and call 10 9.20 Display response time 10 10 Group 2 Tests 11 10.1 General Technology 11 10.2 Equipment requirements for Group 2 testing 11 10.3 General characteristics 11 10.4 General mechanical conditions and external conditions 11 11 Group 3 Test 11 11.1 General Technology 11 11.2 General mechanical conditions and external conditions 11 11.3 Calibration mechanism 11 11.4 Calibration Setup Storage 12 11.5 data storage 12

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Machinery Industry Federation. This standard by the National Testing Machine Standardization Technical Committee (SAC/TC122) centralized. The main drafting unit of this standard. Shantou City ultrasound Instrument Research Institute Co., Ltd., Shenzhen International Technology Co., Ltd., Liaoning Instrument Research Institute. The main drafters of this standard. Xie Xiaoyu, Guo Bing, Xu Bo, Wang Lin. Nondestructive testing equipment Characteristics and Verification of Ultrasonic Thickness Gauge

1 Scope

This standard specifies the method and acceptance criteria for evaluating the performance of pulse echo ultrasonic thickness measurement instruments. This standard includes straight (digital) read and waveform display types, using a single probe or twin crystal probe. This standard applies to GB/T 27664 series of standards for the thickness of the equipment validation.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 699 high quality carbon structural steel GB/T 12604.1 Non - destructive testing - Terminology - Ultrasonic testing GB/T 27664.2 Non-destructive testing - Performance and verification of ultrasonic testing equipment - Part 2. Probes

3 terms and definitions

GB/T 12604.1 Definitions of terms and definitions apply to this document.

4 General requirements

Ultrasonic thickness measurement equipment should meet the following conditions. a) Ultrasonic instruments and probes shall comply with the technical requirements of this standard; b) Declaration of conformity issued by an organization with ISO 9001 certification, or an organization such as an ultrasound product quality supervision and inspection center The test certificate, or the internal test of the test report; c) Ultrasonic instruments and probes shall clearly identify the manufacturer, model and series and unique serial number; d) instructions for use of specific models and series of ultrasound equipment; e) According to this standard in the manufacturer's technical specifications in the corresponding model and series of ultrasonic equipment performance indicators. Note. The manufacturer's technical specifications do not fully constitute the required certification for b). Technical specification for ultrasonic thickness measurement equipment 5.1 General conditions For a certain type of ultrasonic thickness measurement equipment, its technical specifications should contain at least the information listed in 5.2 ~ 5.5. Tests based on Chapter 7 Test the values obtained as nominal values and tolerances. 5.2 Common attributes The details are as follows. ......

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