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GB/T 33877-2017

Chinese Standard: 'GB/T 33877-2017'
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Detail Information of GB/T 33877-2017; GB/T33877-2017
Description (Translated English): Non-destructive testing--Test method for comparing the brightness of fluorescent penetrants
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 6,686
Date of Issue: 2017-07-12
Date of Implementation: 2018-02-01
Drafting Organization: China Aviation Industry Group Corporation Beijing Aeronautical Materials Research Institute, China Aviation Aircraft Co., Ltd. Xi An Aircraft Branch, Sichuan Chengfa Aviation Technology Co., Ltd., Guizhou Liyang Aviation Power Co., Ltd., Beijing Tak high aviation detection materials limited liability company, Shanghai ship craft Research Institute, Inner Mongolia North Heavy Industry Group Co., Ltd
Administrative Organization: National Standard Commission on Non-destructive Testing (SAC/TC 56)
Proposing organization: National Standard Commission on Non-destructive Testing (SAC/TC 56)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee

GB/T 33877-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 19.100
J 04
Non-Destructive Testing –
Test Method for Comparing the
Brightness of Fluorescent Penetrants
无损检测 荧光渗透剂亮度测定方法
ISSUED ON. JULY 12, 2017
IMPLEMENTED ON. FEBRUARY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
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Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 General Requirements ... 4
5 Apparatus ... 5
6 Specimen Preparation ... 6
7 Test Method ... 6
8 Calculation ... 7
Appendix A (Informative) Calibration Method of Fluorescent Luminance Meter
... 8
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard was proposed by and under the jurisdiction of National
Technical Committee for Standardization of Non-Destructive Testing (SAC/TC 56).
Drafting organizations of this Standard. Beijing Institute of Aeronautical Materials of
AVIC, AVIC Aircraft Co., Ltd. Xi’an Branch, Sichuan Chengfa Aero Science &
Technology Co., Ltd., Guizhou Liyang Aero-Engine Co., Ltd., Beijing Degao Aviation
Testing Materials Co., Ltd., Shanghai Shipbuilding Technology Research Institute, and
Inner Mongolia North Heavy Industries Group Co., Ltd.
Chief drafting staffs of this Standard. Ren Xuedong, Qiao Haiyan, Zhao Hongda, Li
Xiufeng, Liu Suping, Xu Yongming, Cong Changlin, Shao Jianhua, and Wang Hailing.
Non-Destructive Testing –
Test Method for Comparing the
Brightness of Fluorescent Penetrants
1 Scope
This Standard specifies the test method for comparing the brightness of fluorescent
penetrants for penetrant test.
This Standard is applicable to the brightness inspection when the fluorescent penetrant
leaves the factor, and brightness calibration when using.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 12604.3 Non-Destructive Testing – Terminology – Terms Used in Penetrant
Testing
3 Terms and Definitions
The terms and definitions stipulated in GB/T 12604.3 are applicable to this document.
4 General Requirements
4.1 Fluorescent luminance meter
The fluorescent luminance meter shall be equipped with black light that can stimulate
the penetrant. Calibrate the fluorescent luminance meter every year; the calibration
method can refer to Appendix A.
4.2 Specimen
The specimen can be divided into standard specimen and to-be-tested specimen.
clip shall be kept dry.
5.6 Alcohol or acetone. industrial grade.
5.7 Dryer with diameter no less than 250mm.
5.8 Desiccant. silica gel.
5.9 Specimen holder for placing specimen, the specimen holder shall connect with
instrument.
6 Specimen Preparation
6.1 When preparing the to-be-tested specimen, a set of standard specimens shall
also be prepared.
6.2 Use pipette to drop 1mL of penetrant into the volumetric flask; then inject acetone
or alcohol into volumetric flask to 25mL of scale line; plug the stopper and mix.
6.3 Pour 10mL~20mL of mixture into the beaker. Use tweezers to dip the 4 pieces of
filter papers into the beaker; when taking out, discharge the excessive penetrant on
the bottle mouth; and respectively clip them onto the drying clip of filter paper. Drying
clip shall cover the filter paper as small as possible.
6.4 Hang the filter paper vertically in the dryer till it is dry. Or place it under the room
temperature to dry for 5min.
7 Test Method
7.1 Start the instrument, and pre-heat 10min~15min.
7.2 Visually examine the standard specimens under the black light; select the
brightest one; place it onto the specimen holder; then insert i......
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