GB/T 33877-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 33877-2017 | English | 90 |
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Non-Destructive Testing - Test Method for Comparing the Brightness of Fluorescent Penetrants
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GB/T 33877-2017: Non-Destructive Testing - Test Method for Comparing the Brightness of Fluorescent Penetrants
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT33877-2017
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
Issued on: JULY 12, 2017
Implemented on: FEBRUARY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
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 into the specimen notch
of fluorescent luminance meter.
7.3 Turn the adjusting knob to “80”.
7.4 Take out specimen holder, use the untreated blank filter paper to replace the
standard specimen; then re-insert into the instrument.
7.5 Turn the zero-adjusting button to “0”.
7.6 Take off the blank paper and insert the to-be-tested specimen to measure. Test
the to-be-tested specimen and standard specimen alternatively, so that reduce the
instrument deviation.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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