GB/T 7999-2015 PDF English
US$85.00 · In stock · Download in 9 secondsGB/T 7999-2015: Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 7999: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 7999-2015 | English | 85 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys
| Valid |
| GB/T 7999-2007 | English | 319 |
Add to Cart
|
3 days
|
Optical emission spectrometric analysis method of aluminum and aluminum alloys
| Obsolete |
| GB/T 7999-2000 | English | 319 |
Add to Cart
|
3 days
|
Standard method for direct reading spectromertric analysis of aluminum and its alloys
| Obsolete |
| GB/T 7999-1987 | English | RFQ |
ASK
|
3 days
|
Standard method for direct reading spectrometric analysis of aluminum and its alloys
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 7999-2015
GB/T 7999-2015: Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT7999-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.040.01
H 12
Replacing GB/T 7999-2007
Optical Emission Spectrometric Analysis
Method of Aluminum and Aluminum Alloys
Issued on. SEPTEMBER 11, 2015
Implemented on. APRIL 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 6
3 Method Summary... 6
4 Auxiliary Equipment, Material and Environment... 6
5 Apparatus... 7
6 Specimen... 7
7 Analytical Procedures... 7
8 Precision... 11
9 Test Report... 12
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB/T 7999-2007 Optical Emission Spectrometric Analysis
Method of Aluminum and Aluminum Alloys; compared with GB/T 7999-2007, this
Standard has the major changes as follows.
--- Add “Warning”;
--- Increase 4 elements of barium, boron, lithium, scandium to “1 Scope”;
--- Re-adjust the order of elements according to their English names in Table 1 and
Table 2;
--- Expand the analytical lower limit of 11 elements like bismuth, cadmium, calcium,
chromium, gallium, lead, nickel, sodium, vanadium, zinc and zirconium;
--- Add provisions of “standard sample, control sample” to “4 Auxiliary Equipment,
Materials, Environment”;
--- Add provisions of “apparatus safety guarantee” in “5 Apparatus”;
--- Change the contents of “6 Specimen” into “specimen shall meet the requirements
of GB/T 17432”;
--- Re-draw “7 Analytical Procedures”;
--- Change “Measurement range” in “Table 2” into “possible interference elements
and their wavelengths”; add a recommended analytical spectral line for each 7
elements including calcium, cerium, lead, magnesium, manganese, nickel,
vanadium, etc.; the spectral line of Ga element is revised to be “294.36” nm;
--- Add the provisions of allowable deviation with mass fraction ≤0.0005% and
repeatability;
--- Combine “9 Quality Assurance and Control” into “7 Analytical Procedures”;
--- Add “9 Test Report”.
This Standard was proposed by China Non-Ferrous Metals Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee for
Standardization of Non-Ferrous Metal (SAC/TC 243).
Drafting organizations of this Standard. Northeast Light Alloy Co., Ltd., and Nonferrous
Metals Technology and Economic Research Institute.
Participating drafting organizations of this Standard. Xinjiang Join World Company
Limited, Kunming Metallurgy Research Institute, Guizhou Research Center of Physico-
Chemical Test & Analysis, Guangzhou Research Institute of Non-Ferrous Metals,
Suzhou Research Institute for Nonferrous Metals, Hebi Quality Technology
Supervision, Inspection and Test Center, Fushun Aluminum Co., Ltd., Baotou
Aluminum Co., Ltd., Zhenzhou Research Institute of Aluminum Corporation of China
Limited, Southwest Aluminum (Group) Co., Ltd., Chalco Ruimin Co., Ltd., Fujian
Nanping Aluminum Co., Ltd., Aluminum Corporation of China Limited Northwest
Aluminum Fabrication Branch, Zhenjiang Dingsheng Aluminum Co., Ltd., Aluminum
Corporation of China Limited Guizhou Branch, and Jinzhou Entry-Exit Inspection and
Quarantine Bureau.
Chief drafting staffs of this Standard. Zhou Bing, Liu Xin, Yao Jia, Xi Huan, Wu Bin, Liu
Yingbo, Zhang Jidong, Li Fujiang, Xiao Limei, Zhao Shizhuo, Luo Shun, Sun Hongying,
Cui Shuang, Wu Jingmin, Zhang Ying, Song Yuping, Zeng Ping, Lu XinYu, Liu
Shuangqing, Li Weijie, Zheng Feng, Lan Zheng, Wang Caoyu, Chen Xiaoming, and
Feng Dongsheng.
The historical editions replaced by this Standard are as follows.
--- GB/T 7999-1987, GB/T 7999-2000, GB/T 7999-2007.
Optical Emission Spectrometric Analysis
Method of Aluminum and Aluminum Alloys
Warning -- Personnel using this Standard shall have practical working
experience in the formal laboratory. This Standard doesn’t address all possible
security issues. The users are responsible to take appropriate safety and health
measures; and guarantee to conform to the specified conditions of relevant
national regulations.
1 Scope
This Standard specifies the optical emission spectrometric analysis method of
aluminum, aluminum alloys and impurities.
This Standard is applicable to measure 28 elements at the same time in the aluminum
and aluminum alloy like antimony, arsenic, barium, beryllium, bismuth, boron, cadmium,
calcium, cerium, chromium, copper, gallium, iron, lead, lithium, magnesium,
manganese, nickel, phosphorus, scandium, silicon, sodium, strontium, tin, titanium,
vanadium, zinc, and zirconium; the measuring scope can see Table 1.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and
Judgment of Limiting Values
GB/T 17432 Methods of Sampling for Analyzing the Chemical Composition of
Wrought Aluminum and Aluminum Alloys
3 Method Summary
In the argon atmosphere, place the specimen processed as per requirements onto the
excitation station, and act as an electrode; the energy generated by light source
generator vaporize, atomize the analyte, as well as excite and emit the characteristic
spectral line of the to-be-measured elements;
4 Auxiliary Equipment, Material and Environment
4.1 Equipment for processing specimen
Lathe or miller.
4.2 Excite gap to protect gas
Argon (purity≥99.995%); recommend to use argon purifier.
4.3 Environmental conditions of optical emission spectrometer
The optical emission spectrometer shall be placed in the lab where it is anti-
electromagnetic interference, anti-shock, and gas-corrosion-free; the environmental
temperature and humidity shall be controlled as per the requirements of optical
emission spectrometer.
4.5 Standardized sample
The standardized sample shall have very homogeneous and appropriate content; can
be selected from the standard sample used for establishing working curve; also can
be self-made; the self-made one shall ensure the sample is uniform, stable, and good
reproducibility.
4.6 Control sample
The control sample shall have an accurate fixed value, its chemical composition,
metallurgical processing, organizing state shall be basically consistent with the
specimen.
5 Apparatus
5.1 Optical emission spectrometer.
5.2 Optical emission spectrometer shall be equipped with power restrictions using
safety interlocks.
6 Specimen
The specimen shall meet the requirements of GB/T 17432.
7 Analytical Procedures
7.1 Working state control of optical emission spectrometer
7.2 Analytical parameters
7.2.1 Optimization of analytical parameters
Different instrument has different exciting conditions; according to the instructions and
condition test of optical emission spectrometer; select the appropriate exciting
conditions, analytical lines, and other working parameters.
7.2.2 Spectral interference inspection
Try to select the spectral lines that won’t interfere each other; if necessary, apply the
interference correction function of the instrument to perform the interference correction.
7.2.3 Analytical spectral line
The recommended internal marking line, analytical spectral line in this Standard list
the interference elements and their wavelengths at the same time; see Table 2.
7.4 Calibration of working curve
7.4.1 Standardization
Use standardized sample to calibrate the instrument regularly; the drift of working
curve caused by calibration due to the following factors changes like electronic system,
optical system, temperature, humidity, etc.; so that ensure the accuracy of the analysis.
The standardized time interval depends on the stability of the instrument.
7.5 Specimen analysis
In the selected working conditions, place the specimen (Chapter 6) onto the excitation
station of the optical emission spectrometer; the exciting point shall be 5mm~6mm
away from the sample edge; the specimen shall be excited for twice or above; take the
average value as the analytical results.
7.6 Data processing
The analytical results shall be expressed by the mass fraction; round off the analytical
results to be the specified digits stipulated in the corresponding product standard
according to the number rounding off rules stipulated in GB/T 8170.
8 Precision
8.1 Repeatability
Under the repeatability conditions, obtain the determination value of 11 independent
test results; in the given measuring range below, the relative standard deviation of
these 11 independent test results shall not exceed the provisions of Table 3.
8.2 Allowable deviation
Contents of To-Be-Measured Elements / % Relative Standard Deviation / %
The relative error of analytical results among laboratories shall not exceed the
allowable deviation in Table 4.
9 Test Report
The contents of test report specified in this Chapter shall include the following items at
least.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 7999-2015 be delivered?Answer: The full copy PDF of English version of GB/T 7999-2015 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 7999-2015_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7999-2015_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 7999-2015 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB/T 7999-2015?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7999-2015 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of GB/T 7999-2015?A step-by-step guide to download PDF of GB/T 7999-2015_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 7999-2015".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|