|
US$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 938.2-2013: Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 2: Determination of palladium content. Dimethylglyoxime gravimetry
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 938.2-2013 | English | 159 |
Add to Cart
|
3 days [Need to translate]
|
Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 2: Determination of palladium content. Dimethylglyoxime gravimetry
| Valid |
YS/T 938.2-2013
|
PDF similar to YS/T 938.2-2013
Basic data | Standard ID | YS/T 938.2-2013 (YS/T938.2-2013) | | Description (Translated English) | Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 2: Determination of palladium content. Dimethylglyoxime gravimetry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,664 | | 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 porcelain dental restoration and the determination of the amount of palladium-based alloys with gold base. This standard applies to repair dental porcelain base with gold and palladium-based alloys of palladium content. Measuri | YS/T 938.2-2013: Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration. Part 2: Determination of palladium content. Dimethylglyoxime gravimetry
---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.
Chemical analysis methods of gold alloys and palladium alloys for dental ceramic restoration Part 2. Determination of palladium content Dimethylglyoxime gravimetry
ICS 77.120.99
H68
People's Republic of China Nonferrous Metals Industry Standard
Porcelain dental restoration with gold-based alloys and palladium-based analysis
Part 2. Determination of the amount of palladium
Dimethylglyoxime gravimetric method
restoration-
Part 2. Determinationofpaladiumcontent-
Issued on. 2013-10-17
2014-03-01 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 YS/T 938 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
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, Guangzhou Nonferrous Metal Research Institute, Xuzhou Flexcomm New Material Technology Company Limited
Division, the China Nonferrous Guilin Research Institute of Geology and Minerals Co. Ltd., Fujian Zijin Mining and Metallurgy Testing Technology Limited.
The main drafters of this section. Liu Bing, Zang Muwen, Li Na, to Lei, Zhang Li, Wang Haoying, Chen Xiaolan, Yufeng Shan Hu Zhen Zhen, Liu hair, Mary,
Redevex school, Xu Chaoxiu, Fang.
Porcelain dental restoration with gold-based alloys and palladium-based analysis
Part 2. Determination of the amount of palladium
Dimethylglyoxime gravimetric method
1 Scope
This section YS/T 938 provides for dental porcelain repair method for the determination of gold and palladium-based alloys base amount of palladium.
This section applies to dental porcelain restoration with gold-based and palladium-based alloys of palladium contents. Measurement range. 15.00% - 60.00%.
2 Method summary
Mixing the sample with hydrochloric acid, nitric acid dissolved. After precipitation of silver chloride in addition to silver, in dilute hydrochloric acid medium to precipitate palladium dimethylglyoxime. Drying Shen
Lake, constant weight, and calculate the mass fraction of palladium.
3 Reagents and materials
Unless otherwise specified, the reagents were analytical 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 (199).
3.5 hydrochloride (11).
3.6 dimethylglyoxime in ethanol (10g/L). Weigh 1g diacetyldioxime, dissolved in 100mL ethanol solution and mix.
3.7 G4 glass frit funnel (particle size 3μm ~ 4μm).
4 Sample
Sample (sheet) is processed into crushed particles with acetone to remove oil, washed with water, dried and mixed.
Step 5 Analysis
5.1 Sample
Table 1 sample was weighed, accurate to 0.0001g.
Table 1 Sample volume
Palladium mass fraction /% sample weight/g
15 to 30 0.20
> 30 to 60 0.10
|