GB/T 19799.2-2024 English PDF

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GB/T 19799.2-2024: Non-destructive testing - Ultrasonic testing block - Part 2: Calibration block No.2
Status: Valid

GB/T 19799.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 19799.2-2024	274	Add to Cart	3 days	Non-destructive testing - Ultrasonic testing block - Part 2: Calibration block No.2	Valid
GB/T 19799.2-2012	479	Add to Cart	3 days	Non-destructive testing -- Ultrasonic testing -- Specification for calibration block No.2	Obsolete
GB/T 19799.2-2005	399	Add to Cart	3 days	Non-destructive testing - Ultrasonic testing - Calibration block No. 2	Obsolete

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GB/T 19799.1   GB/T 19873.1   GB/T 19943   GB/T 30565   GB/T 33523.600   GB/T 19799.3   

Basic data

Standard ID: GB/T 19799.2-2024 (GB/T19799.2-2024)
Description (Translated English): Non-destructive testing - Ultrasonic testing block - Part 2: Calibration block No.2
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 14,194
Date of Issue: 2024-11-28
Date of Implementation: 2024-11-28
Older Standard (superseded by this standard): GB/T 19799.2-2012
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 19799.2-2024: Non-destructive testing - Ultrasonic testing block - Part 2: Calibration block No.2

---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 Standard of the People's Republic of China ICS 19.100CCS J 04 Non-destructive testing ultrasonic test blocks Part 2.Standard test block No. 2 Non⁃destructive testing-Ultrasonic testing block- Part 2.Calibration block No.2 (ISO 7963.2022, Non⁃destructive testing-Ultrasonic testing- 2024-11-28 Release 2024-11-28 Implementation State Administration for Market Regulation The National Standardization Administration issued Replaces GB/T 19799.2-2012

Table of Contents

Preface Ⅲ Introduction Ⅳ 1 Scope...1 2 Normative references ...1 3 Terms and Definitions 1 4 Production...1 5 How to use ...3 6 Declaration of Conformity 7 References ...8

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document is part 2 of GB/T 19799 "Non-destructive testing - ultrasonic test blocks". GB/T 19799 has published the following part. --GB/T 19799.1 Non-destructive testing - Ultrasonic testing - Calibration test block No. 1. --GB/T 19799.2 Non-destructive testing - Ultrasonic testing test blocks - Part 2.Standard test blocks No. 2. This document replaces GB/T 19799.2-2012 "Non-destructive testing ultrasonic testing No. 2 calibration test block" and is consistent with GB/T 19799.2- Compared with.2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The definition of average surface roughness Ra is deleted (see Chapter 4 of the.2012 edition); b) The length of the scale groove of the No. 2 standard test block has been changed, and the provisions for the test block angle identification have been added (see 4.2, Chapter 4 of the.2012 edition); c) Added requirements for the preparation of semi-finished test blocks, as well as the requirements for ultrasonic testing and sound velocity measurement of test blocks before final machining (see 4.3); d) The requirements for specimen machining, heat treatment and surface treatment have been modified (see 4.3, Chapter 6 of the.2012 edition); e) Added the technical requirements for Figures 2, 3, 4, 5 and 6, and the graduation values of the scales in Figures 3 and 6 (see Chapter 5); f) The adjustment requirements for time base setting have been changed (see 5.1, 8.1 of the.2012 edition); g) The provisions on the characteristics and uses of standard test blocks have been deleted (see Appendix A of the.2012 edition). This document is equivalent to ISO 7963.2022 "Standard test block No. 2 for non-destructive testing - ultrasonic testing". The following minimal editorial changes were made to this document. --To coordinate with the existing standards, the name of the standard is changed to "Non-destructive Testing Ultrasonic Test Blocks Part 2.Standard Test Block No. 2". Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Nondestructive Testing (SAC/TC 56). This document was drafted by. Shanghai Materials Research Institute Co., Ltd., China Special Equipment Testing and Research Institute, Shandong Ruixiang Mould Co., Ltd., Zhejiang Ult Testing Technology Co., Ltd. and Huizhou Testing Institute of Guangdong Special Equipment Testing Institute. The main drafters of this document are. Jiang Jiansheng, Luo Jianxi, Zhang Chi, Ding Jie, Wei Yulong, Liu Zhanglong, Han Lina, Wu Haihong, Yan Zhihai, Huang Yin, Wan Haitao and Xue Jianhong. This document was first published in.2005, revised for the first time in.2012, and this is the second revision.

Introduction

Ultrasonic test blocks are divided into standard test blocks, comparison test blocks and test test blocks. GB/T 19799 "Ultrasonic Test Blocks for Nondestructive Testing" is intended to standardize ultrasonic test blocks. GB/T 19799 is intended to consist of three parts. constitute. --Part 1.Standard test block No. 1.The purpose is to specify the size, material and manufacturing requirements of standard test block No. 1. --Part 2.Standard test block No. 2.The purpose is to specify the dimensions, materials, manufacturing requirements, and use of standard test blocks No. 2. Methods for setting up and verifying ultrasonic testing equipment. -- Part 3.Standard test blocks for curved surface inspection. The purpose is to specify the size, material, and manufacturing requirements of standard test blocks for curved surface inspection. And the method of using test blocks to verify the performance of curved surface probes and material sound velocity. Standard test block No. 2 is different from standard test block No. 1 in size and shape, but both are made of the same material, steel, and are used for all ultrasonic testing. Compared with the No. 1 standard test block, the No. 2 standard test block is smaller in size, lighter in weight, and has a simpler geometry. The scope of application is not as comprehensive as that of the No. 1 standard test block, especially it cannot be used to fully verify the performance of ultrasonic instruments. The test block can be used to easily and conveniently check the time baseline and sensitivity settings of ultrasonic instruments at any time. It is also suitable for checking the beam angle and Point of incidence. This document is Part 2 of GB/T 19799.This revision of GB/T 19799.2-2012 clarifies and refines the test blocks. drawings, semi-finished test block preparation, and ultrasonic testing requirements before test block machining, promote the standardization of ultrasonic testing blocks, and ensure product quality and Service safety is of great significance. Non-destructive testing ultrasonic test blocks Part 2.Standard test block No. 2

1 Scope

This document specifies the size, material, manufacturing requirements of No. 2 standard test block (hereinafter referred to as the test block), and the use of the test block for ultrasonic testing equipment. Methods for setting up and verifying equipment.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. ISO 2400 Non-destructive testing-Ultrasonic testing-No. 1 standard test block Note. GB/T 19799.1-2015 Non-destructive testing - Ultrasonic testing - Calibration test block No. 1 (ISO 2400.2012, IDT) ISO 5577 Non-destructive testing-Ultrasonic testing-Vocabulary Note. GB/T 12604.1-2020 Non-destructive testing terminology Ultrasonic testing (ISO 5577.2017, MOD) EN 10025-2 Hot rolled products of structural steels Part 2.Technical delivery conditions for non-alloy structural steels structural steels-Part 2.Technical delivery conditions for non⁃alloy structural steels)

3 Terms and definitions

For the purpose of this document, the terms and definitions given in ISO 5577 apply.

4 Production

4.1 Steel The test blocks shall be made of steel grade S355J0 as specified in EN 10025-2 or equivalent. 4.2 Dimensions The dimensions of standard test block No. 2 shall be consistent with Figure 1. When using a non-compact probe, the thickness of the test block may be greater than 12.5 mm, such as 20 mm or 25 mm. ......

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