GB/T 19799.2-2024 无损检测 超声检测试块 第2部分：2号标准试块

ICS19.100

CCSJ04

中华人民共和国国家标准

GB/T19799.2—2024/ISO7963:2022

代替GB/T19799.2—2012

无损检测超声检测试块

第2部分：2号标准试块

Non⁃destructivetesting—Ultrasonictestingblock—

Part2：CalibrationblockNo.2

（ISO7963：2022，Non⁃destructivetesting—Ultrasonictesting—

SpecificationforcalibrationblockNo.2，IDT）

2024⁃11⁃28发布2024⁃11⁃28实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T19799.2—2024/ISO7963:2022

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4制作·······················································································································1

5使用方法·················································································································3

6符合性声明··············································································································7

参考文献·····················································································································8

Ⅰ

GB/T19799.2—2024/ISO7963:2022

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

本文件是GB/T19799《无损检测超声检测试块》的第2部分。GB/T19799已经发布了以下

部分：

——GB/T19799.1无损检测超声检测1号校准试块。

——GB/T19799.2无损检测超声检测试块第2部分：2号标准试块。

本文件代替GB/T19799.2—2012《无损检测超声检测2号校准试块》，与GB/T19799.2—

2012相比，除结构调整和编辑性改动外，主要技术变化如下：

a）删除了平均表面粗糙度Ra的定义（见2012年版的第4章）；

b）更改了2号标准试块刻度槽长度，增加了试块角度标识规定（见4.2，2012年版的第4章）；

c）增加了半成品试块的制备要求，以及试块在最终机加工之前进行超声检测和声速测定的要求

（见4.3）；

d）更改了试块机加工、热处理和表面处理规定（见4.3，2012年版的第6章）；

e）增加了图2、图3、图4、图5和图6的技术要求，以及图3和图6的刻度尺的分度值（见

第5章）；

f）更改了时基线设定的调节要求（见5.1，2012年版的8.1）；

g）删除了标准试块的特性和用途的规定（见2012年版的附录A）。

本文件等同采用ISO7963：2022《无损检测超声检测2号标准试块》。

本文件做了下列最小限度的编辑性改动：

——为与现有标准协调，将标准名称改为《无损检测超声检测试块第2部分：2号标准试块》。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由全国无损检测标准化技术委员会（SAC/TC56）提出并归口。

本文件起草单位：上海材料研究所有限公司、中国特种设备检测研究院、山东瑞祥模具有限公司、

浙江优尔特检测科技有限公司、广东省特种设备检测研究院惠州检测院。

本文件主要起草人：蒋建生、罗见喜、张驰、丁杰、魏玉龙、柳章龙、韩丽娜、吴海泓、严志海、黄隐、

万海涛、薛建虹。

本文件于2005年首次发布，2012