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SN/T 0065.1-2011

Chinese Standard: 'SN/T 0065.1-2011'
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SN/T 0065.1-2011English139 Add to Cart Days<=2 Method for determination of europium-rich, yttrium-rich, Sm-Eu-Gd oxides for import and export. Part 1: Determination of moisture content Valid SN/T 0065.1-2011
SN/T 0065.1-2011Chinese14 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

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Detail Information of SN/T 0065.1-2011; SN/T0065.1-2011
Description (Translated English): Method for determination of europium-rich, yttrium-rich, Sm-Eu-Gd oxides for import and export. Part 1: Determination of moisture content
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: D41
Word Count Estimation: 5,592
Date of Issue: 2011-02-25
Date of Implementation: 2011-07-01
Older Standard (superseded by this standard): SN 0065.1-1992
Quoted Standard: GB/T 6379.2
Drafting Organization: Guangdong Exit Inspection and Quarantine of the PRC
Administrative Organization: National Certification and Accreditation Administration
Regulation (derived from): ?AQSIQ-Inspection [2011] 90
Summary: This standard specifies the import and export of rich platinum, determination of yttrium-rich off of gadolinium and samarium oxide moisture. This section applies to the import and export rich europium, determination rich yttrium and europium, gadolinium, samarium oxide moisture. Measuring range: 0. 10% to 2. 00 %.


SN/T 0065.1-2011
Method for determination of europium-rich, yttrium-rich, Sm-Eu-Gd oxides for import and export.Part 1: Determination of moisture content
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Replacing SN 0065.1-1992
Importers and rich europium, yttrium-rich, samarium, europium, gadolinium oxide determination
Part 1: Determination of moisture
Methodfordeterminationofeuropium-rich, yttrium-rich, Sm-Eu-Gd
oxidesforimportandexport-
Part 1: Determinationofmoisturecontent
Issued on: 2011-02-25
2011-07-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 0065 "Importers rich europium, yttrium-rich, samarium, europium, gadolinium oxide measurement method" standard series is divided into three parts:
--- Part 1: Determination of moisture
--- Part 2: Determination of loss on ignition
--- Part 3: Determination of total rare earth oxides
This section SN/T Section 10065 of.
This Part replaces SN 0065.1-1992 "export europium rich, rich yttrium, europium, gadolinium, samarium oxide determination of moisture measurement method --- the weight of law."
": Chemical analysis methods - Part 4 standard writing rules" provisions of this section in accordance with SN 0065.1-1992 GB/T 20001.4
Be revised.
This section compared with SN 0065.1-1992 main changes are as follows:
--- Add a description of the preamble;
--- Delete the obsolete GB 4471 "between Chemical test method precision laboratory tests to determine the repeatability and reproducibility";
--- This section, delete the original standard "milled water sample through a 200 mesh sieve" unreasonable terms;
--- Given precision repeatability limit, the reproducibility of the method has been covered limit measurement range, delete the original standard "7.2 critical difference calculation"
Terms.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section was drafted by: People's Republic of China Guangdong Entry-Exit Inspection and Quarantine of Liaoning People's Republic of China
Bureau, Qingyuan People's Republic of China Entry-Exit Inspection and Quarantine Foshan People's Republic of China, People's Republic of China
Daya Bay CIQ.
The main drafters of this section: Zhong Zhiguang, Guo Seoul, of Interferon Cao Xiaoyan, He Yingxian, Chengu Feng, Wu Feng order, Lu Zhenguo, Peng-speed standard,
Di Cuiping, Zheng Jianguo, Li Jinxing.
This part of the standard replaces the previous editions are:
--- SN 0065.1-1992.
Importers and rich europium, yttrium-rich, samarium, europium, gadolinium oxide determination
Part 1: Determination of moisture
1 Scope
SN/T 0065 provisions of this part of the import and export rich europium, samarium and yttrium-rich determination of europium, gadolinium oxide moisture.
This section applies to the import and export rich europium, samarium and europium measured yttrium-rich gadolinium oxide moisture. Measuring range: 0.10% to 2.00%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2: Determine the standard measurement method to repeat
Of the basic methods of reproduction
3 Method summary
The sample after 105 ℃ ± 5 ℃ oven dried to constant weight, measured losing quality material.
4 Instrument
4.1 Analysis of balance: a sense of the amount of 0.1mg.
4.2 flat glass weighing bottle: diameter 60mm ~ 70mm, height 35mm or less.
4.3 Electric oven: Maximum temperature range 300 ℃.
5 Sample
The sample was simple, rapid mixing, and sealed in plastic bags, used as a moisture measurement.
Step 6 Analysis
6.1 Sample
Weigh about 5g sample, accurate to 0.0001g.
Independently carry out two measurements, the results of the arithmetic mean.
6.2 Determination
The sample (see Chapter 5) placed by the 105 ℃ ± 5 ℃ constant weight of glass weighing bottle, lid, moved into an oven from room temperature
105 ℃ ± 5 ℃ maintained 2h. Remove and close the lid, moved into the dryer to cool to room temperature and weighed. Repeat dried to constant weight.
Poor quality does not exceed 2mg twice before and after is a constant weight.
Related standard:   SN/T 0065.2-2011  SN/T 0065.3-2011
   
 
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