GB/T 37665-2019 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 37665-2019: Non-destructive testing for chemical compositions of ancient ceramics - PIXE analysis technique standards Status: Valid
Basic dataStandard ID: GB/T 37665-2019 (GB/T37665-2019)Description (Translated English): Non-destructive testing for chemical compositions of ancient ceramics - PIXE analysis technique standards Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A10 Classification of International Standard: 03.080.99 Word Count Estimation: 10,158 Date of Issue: 2019-06-04 Date of Implementation: 2019-06-04 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 37665-2019: Non-destructive testing for chemical compositions of ancient ceramics - PIXE analysis technique standards---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 for chemical compositions of ancient ceramics--PIXE analysis technique standards ICS 03.080.99 A10 National Standards of People's Republic of China Non-destructive testing of ancient ceramic chemical composition PIXE analysis technical specification Published on.2019-06-04 Implementation of.2019-06-04 State market supervision and administration China National Standardization Administration issued ContentForeword III 1 Scope 1 2 Principle 1 3 Equipment 1 4 sample processing 1 5 Measurement and Analysis 2 6 Test report 3 Appendix A (informative) PIXE analysis test report for non-destructive testing of ancient ceramic chemical composition 4ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the State Administration of Cultural Heritage. This standard is under the jurisdiction of the National Cultural Relics Protection Standardization Technical Committee (SAC/TC289). This standard was drafted. Fudan University. The main drafters of this standard. Cheng Huansheng, Zhang Bin. Non-destructive testing of ancient ceramic chemical composition PIXE analysis technical specification1 ScopeThis standard specifies the proton-excited X-ray fluorescence (PIXE) analysis technique during the nondestructive testing of ancient ceramics. Claim. This standard applies to the non-destructive testing of the composition of ancient ceramic chemical elements.2 PrincipleThe sample is bombarded with a proton beam accelerated by an accelerator, so that atoms in the substance to be tested are excited and ionized, and when the inner shell layer is formed, When the layer is filled with electrons, characteristic X-rays are emitted, and the energy and intensity of the characteristic X-rays are detected to determine the type of elements in the sample and content.3 equipment3.1 Accelerator Accelerators that provide 1.5MeV to 4.0MeV collimated proton beams, such as single-stage electrostatic accelerators or tandem accelerators. 3.2 Sample stage A sample "positioning" device should be set up - the sample stage. The sample stage can be divided into the following two ways. --- Closed. a certain volume of vacuum target chamber, the sample to be tested is placed in the target chamber, the sample size is limited by the geometry of the target chamber; --- Open type. using the outer beam test, the sample to be tested is placed at the leading end of the proton beam. For example. collimation proton beaming obtained by an accelerator The 7.5 μm Kapton membrane is introduced into the atmosphere and continues to pass through the air layer to reach the sample to be tested. The advantage of this method is that the sample to be tested The geometry of the product is not limited, and it is convenient to change the sample. 3.3 X-ray measurement system In the PIXE measurement system, the detector's 5.87 keV Kα ray should have an energy resolution of less than 150 eV to ensure exploration. Measure accuracy. The thickness of the detector window should be 7.5μm~12μm to ensure that the energy of the detector for Na is 1.041keV. The ray has sufficient detection efficiency. When using a closed target chamber, vacuum test should be carried out, and the vacuum should be below 10-4Pa. When using the external beam PIXE method, helium should be filled between the sample target and the detector window to reduce the low energy X of air emission to the sample. Absorption of radiation, otherwise the test system will be insensitive to the detection of elements Na and Mg or the measurement error is too large.4 sample processing4.1 Reagents and materials 4.1.1 Absolute ethanol. used to clean the surface of the sample. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 37665-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 37665-2019_English as soon as possible, and keep you informed of the progress. 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