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YS/T 938.4-2013: Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 4: Determination of gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium content. Inductively coupled plasma a
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Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 4: Determination of gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium content. Inductively coupled plasma a
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YS/T 938.4-2013
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Basic data | Standard ID | YS/T 938.4-2013 (YS/T938.4-2013) | | Description (Translated English) | Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 4: Determination of gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium content. Inductively coupled plasma a | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H15 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 12,155 | | Regulation (derived from) | Ministry of Industry and Information Technology Bulletin No. 52, 2013; industry standard for filing Notice No. 1 of 2014 (No. 169 overall) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the use of gold-based dental ceramic restoration and the base alloy of gold, platinum, put, copper, tin, indium, zinc, gallium, was, iron, manganese, determination Keng amount. This standard applies to dental porcelain repair and t | YS/T 938.4-2013: Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 4: Determination of gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium content. Inductively coupled plasma a
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Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration Part 4. Determination of gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium content Inductively coupled plasma a
ICS 77.120.99
H15
People's Republic of China Nonferrous Metals Industry Standard
PFM group dental gold and palladium-based alloys
Analysis - Part 4. gold, platinum, palladium, copper, tin,
Determination of indium, zinc, gallium, beryllium, iron, manganese, lithium amount
Inductively coupled plasma atomic emission spectrometry
Part 4. Determinationofgold, platinum, paladium, copper, tin,
indium, zinc, galium, berylium, iron, manganese, lithiumcontent-
Issued on. 2014-03-01 2013-10-17 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 938 "dental gold PFM group and palladium-based alloy chemical analysis method" is divided into four parts.
--- Part 1. determination of gold by weight of sodium nitrite reduction method;
--- Part 2. Determination of the amount of palladium dimethylglyoxime gravimetric method;
--- Part 3. Determination of the amount of silver by flame atomic absorption spectrometry and potentiometric titration;
--- Part 4. Inductively coupled plasma atomic gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium amount of emitted light
Spectroscopy.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section YS/T Part 4 938.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Institute of Standards and Metrology and Quality.
Participated in the drafting of this section. Beijing Mining Research Institute, Xuzhou ho-new material Technology Co., Ltd., China Nonferrous minerals Guilin
Institute of Geological Ltd., Fujian Zijin Mining and Metallurgy Testing Technology Limited.
The main drafters of this section. Li Na, Yang Hui, Chen Caixia to Lei, Liu Bing, Wang Haoying, Yufeng Shan, Mary, Zeng Zhiping, Qiu Li, Xia pearls,
Lin Yingling.
PFM group dental gold and palladium-based alloys
Analysis - Part 4. gold, platinum, palladium, copper, tin,
Determination of indium, zinc, gallium, beryllium, iron, manganese, lithium amount
Inductively coupled plasma atomic emission spectrometry
1 Scope
This section YS/T 938 provides for dental porcelain restoration with gold-based and palladium-based alloys of gold, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron,
Manganese, a lithium content.
This section applies to dental porcelain restoration with gold and base metal palladium, platinum, palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium-based alloy measured amount
set. Determination of the range in Table 1.
Table 1 measurement range of each element
Measuring element Measuring range w /% range of elements w /%
Au 2.00 ~ 15.00 Zn 0.10 ~ 10.00
Pt 1.00 ~ 15.00 Ga 1.00 ~ 10.00
Pd 1.00 ~ 15.00 Be 0.01 ~ 0.10
Cu 5.00 ~ 20.00 Fe 0.10 ~ 0.50
Sn 0.100 ~ 5.00 Mn 0.050 ~ 0.500
In 0.50 ~ 10.00 Li 0.020 ~ 0.500
2 Method summary
Sample mixed with salt nitric acid dissolution, inductively coupled plasma atomic emission spectrometer, at the recommended wavelength measuring gold, platinum,
Emission intensity of palladium, copper, tin, indium, zinc, gallium, beryllium, iron, manganese, lithium, calculate the mass concentration of each measured element.
3 Reagents
Unless otherwise specified, all reagents superior grade pure reagent solution preparation and analysis are secondary distilled water or equivalent purity test
Room with water.
3.1 hydrochloric acid (ρ = 1.19g/mL).
3.2 nitric acid (ρ = 1.42g/mL).
3.3 mixed acid. hydrochloric acid (3.1) and nitrate (3.2) in a volume ratio 40.7 mixed preparation.
3.4 hydrochloride (11).
3.5 nitric acid (1 l).
3.6 gold standard stock solution. Weigh 0.1000g Gold (wAu≥99.99%) in 100mL beaker, add 1mL of nitric acid (3.2) and
3mL hydrochloric acid (3.1), heated until completely dissolved and evaporated to near dryness, remove the coolish, adding 10mL hydrochloric acid (3.4), boiled to drive the best nitrogen oxide
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