Search result: GB/T 42433-2023
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Gem testing - Infrared spectroscopy method
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GB/T 42433-2023
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| Standard ID | GB/T 42433-2023 (GB/T42433-2023) | | Description (Translated English) | Gem testing -- Infrared spectroscopy method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D59 | | Classification of International Standard | 39.060 | | Word Count Estimation | 114,165 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Management Committee |
GB/T 42433-2023: Infrared Spectroscopy for Identification of Jewelry and Jade
ICS 39:060
CCSD59
National Standards of People's Republic of China
Infrared Spectroscopy for Identification of Jewelry and Jade
Released on 2023-05-23
2023-12-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface V
1 Range 1
2 Normative references 1
3 Terms and Definitions 1
4 Method principle 2
5 Instruments and equipment 2
6 sample 2
7 Selection of Spectrum Acquisition Method 3
8 Test steps (taking Fourier transform infrared spectrometer as an example) 3
9 Experimental data processing (spectrum analysis) 3
10 Main Influencing Factors 3
11 Test report (result presentation) 4
Appendix A (Informative) Common Infrared Spectrum Charts and Brief Descriptions of Jewelry and Jade 5
A:1 Restrictive notes on spectra5
A:2 Infrared Spectrum 5
A:2:1 Atmospheric background single beam diagram 5
A:2:2 Diamond 6
A:2:3 Corundum 11
A:2:4 Chrysoberyl14
A:2:5 Beryl 15
A:2:6 Tourmaline 20
A:2:7 Spinel 22
A:2:8 Zircon 23
A:2:9 Topaz 24
A:2:10 Peridot 25
A:2:11 Garnet 26
A:2:12 Quartz 28
A:2:13 Feldspar 33
A:2:14 Stereotype 35
A:2:15 Pillars 36
A:2:16 Zoisite37
A:2:17 Epidote38
A:2:18 Cordierite 38
A:2:19 Titanite39
A:2:20 Apatite 40
A:2:21 Diopside 41
A:2:22 Enstatite 42
A:2:23 Spodumene 43
A:2:24 Andalusite 44
A:2:25 Sillimanite45
A:2:26 Kyanite 46
A:2:27 Apophyllite47
A:2:28 Fushan Stone 48
A:2:29 Magnesite 49
A:2:30 Taaffeite 50
A:2:31 Benitoite 51
A:2:32 Barite 51
A:2:33 Celestite 52
A:2:34 Gypsum53
A:2:35 Calcite-structured carbonate jewelry jade 53
A:2:36 Aragonite structure carbonate jewelry jade 54
A:2:37 Cassiterite 55
A:2:38 Phospholithite 56
A:2:39 Perspective stone 56
A:2:40 cyanolite 57
A:2:41 Saihuangjing 58
A:2:42 Beryllite 59
A:2:43 Emerald 59
A:2:44 Omphacite Jade 64
A:2:45 Nephrite 65
A:2:46 Opal (glassy state) 66
A:2:47 Quartzite 68
A:2:48 Chalcedony 70
A:2:49 Quartz Jade (Aphanitic-Aphromatic) 71
A:2:50 Serpentine 72
A:2:51 Charoite73
A:2:52 rhodonite 74
A:2:53 Actinolite 74
A:2:54 Turquoise 75
A:2:55 lapis lazuli76
A:2:56 Malachite 77
A:2:57 Previne stone 77
A:2:58 Fluorite 78
A:2:59 Hydrogross garnet 79
A:2:60 Talc 80
A:2:61 Sodalite 80
A:2:62 Hematite 81
A:2:63 Kaolinite group 82
A:2:64 Pyrophyllite83
A:2:65 Brucite 83
A:2:66 Su Jishi 84
A:2:67 Hemimorphite 84
A:2:68 Mica, illite 85
A:2:69 Acetite 85
A:2:70 Chlorite 86
A:2:71 Clinophanite 87
A:2:72 Diaspore 87
A:2:73 Magnesite 88
A:2:74 Rutile 89
A:2:75 Pearl mica 89
A:2:76 Wollastonite 90
A:2:77 Amber 91
A:2:78 Cementum 93
A:2:79 Keratin proteins 94
A:2:80 Synthetic cubic zirconia 95
A:2:81 Synthetic moissanite 96
A:2:82 Synthetic yttrium aluminum garnet97
A:2:83 Artificial strontium titanate 98
A:2:84 Glass 99
References 105
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:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by the Ministry of Natural Resources of the People's Republic of China:
This document is under the jurisdiction of the National Gemstone Standardization Technical Committee (SAC/TC298):
This document was drafted by: Shandong Provincial Institute of Metrology, National Jewelry and Jade Jewelry Inspection Group Co:, Ltd:, Sichuan Provincial Product Quality
Institute of Supervision, Inspection and Testing, Guangdong Jewelry, Jade and Precious Metal Testing Center, Tongji University, Anhui Geological Experiment Research Institute (jointly with the Ministry of Land and Resources)
Fertilizer and Mineral Resources Supervision and Testing Center), Guangdong Gold and Silver Jewelry Testing Center Co:, Ltd:, Beijing Nigaoli Tianguang Technology and Trade Co:, Ltd:, Shandong Province
Metrology and Testing Center, Shandong Social Justice Metrology Co:, Ltd:
The main drafters of this document: Li Jianjun, Zhang Jun, Cheng Youfa, Dai Sulan, Chen Nengxiang, Zhou Zhengyu, Dai Hui, Zhang Xiangjun, Yang Jian, Liu Haibin,
Li Haibo, Wang Yue, Chen Dapeng, Li Xueming, Ma Tingting, Yu Lu, Chen Shan, Chen Kan, Wang Lei, Su Jun, Ma Xiao, Hu Yao, Jin Xiaoting, Zuo Rui, Huang Zhun,
Ding Xiuyun, Li Hejun, Yan Fei, Du Ran:
Infrared Spectroscopy for Identification of Jewelry and Jade
1 Scope
This document describes the method principle, equipment, samples, selection of spectral collection methods, and test methods for identifying gemstones and gemstones by infrared spectroscopy:
Test steps, test data processing, main influencing factors and test report:
This document applies to the identification of gemstones with characteristic absorption by means of spectroscopy in the mid-infrared to near-infrared range:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 6040-2019 General Rules for Infrared Spectroscopy Analysis Methods
GB/T 16553 Identification of Jewelry and Jade
3 Terms and Definitions
GB/T 6040-2019, GB/T 16553 and the following terms and definitions apply to this document:
3:1
A method of mixing a small amount of sample powder with an appropriate amount of potassium bromide powder and pressing it into a sheet, and collecting infrared spectra through transmission:
3:2
A method of collecting infrared spectra by letting infrared light pass directly through jewelry and jade samples:
3:3
A method of collecting infrared light reflected by the surface of the sample (specular reflection) to obtain a reflection infrared spectrum:
NOTE: Due to the correlation with the reflectance (corresponding to the refractive index), the spectrum may need to be corrected, making the necessary transformations:
3:4
It is a method used for the determination of high absorption samples or sample surfaces: Infrared light is incident on a high surface close to the sample surface at an angle greater than the critical angle:
When the refractive index crystal is used, because the sample has a lower refractive index than the crystal, total reflection occurs, and the infrared light only enters the very shallow surface of the sample, and only certain frequencies are detected:
The attenuated total reflection spectrum of the sample is obtained by measuring this attenuated radiation:
Note: Attenuated total reflection, referred to as ATR:
[Source: GB/T 6040-2019, 3:15, modified]
3:5
transmittance
The ratio of the infrared radiant energy transmitted through the sample to the incident infrared radiant energy:
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