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YS/T 820.16-2012 PDF English

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US$130.00 · In stock · Download in 9 seconds
YS/T 820.16-2012: Methods for chemical analysis of laterite nickel ores - Part 16: Determination of carbon and sulfur content - High frequency combustion with infrared absorption spectrometry
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Standard ID	Contents [version]	USD	STEP2	[PDF] delivery	Name of Chinese Standard	Status
YS/T 820.16-2012	English	130	Add to Cart	0-9 seconds. Auto-delivery	Methods for chemical analysis of laterite nickel ores - Part 16: Determination of carbon and sulfur content - High frequency combustion with infrared absorption spectrometry	Valid

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SN/T 1537 GB/T 2007.1 YS/T 820.3

YS/T 820.16-2012: Methods for chemical analysis of laterite nickel ores - Part 16: Determination of carbon and sulfur content - High frequency combustion with infrared absorption spectrometry

---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/YST820.16-2012
YS NONFERROUS METAL INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 73.060 D 04 Methods for chemical analysis of laterite nickel ores - Part 16: Determination of carbon and sulfur content - High frequency combustion with infrared absorption spectrometry ISSUED ON: NOVEMBER 7, 2012 IMPLEMENTED ON: MARCH 1, 2013 Issued by: Ministry of Industry and Information Technology of PRC

Foreword ... 3 1 Scope ... 6 2 Method summary ... 6 3 Reagents and materials ... 6 4 Instruments ... 7 5 Samples ... 7 6 Analysis steps ... 7 7 Precision... 9 8 Test report ... 9 Methods for chemical analysis of laterite nickel ores - Part 16: Determination of carbon and sulfur content - High frequency combustion with infrared absorption spectrometry

1 Scope

This part of YS/T 820 specifies the method for the determination of carbon and sulfur content in laterite nickel ore. This part applies to the determination of carbon and sulfur content in laterite nickel ore. Measuring range: carbon 0.0060%~0.40%, sulfur 0.0020%~0.20%.

2 Method summary

The sample is heated and burned in the oxygen flow of the high-frequency induction furnace; the generated carbon dioxide and sulfur dioxide are carried by the oxygen to the infrared analyzer for measurement. In the measuring chamber, carbon dioxide and sulfur dioxide absorb infrared energy of a certain wavelength; the absorption energy is proportional to its concentration. According to the change of absorption energy tested by the detector, the carbon and sulfur content can be measured.

3 Reagents and materials

Unless otherwise stated, only reagents confirmed to be analytical reagents were used in the analysis. 3.1 Pure iron fluxing agent: particle size< 1.25 mm, C< 0.0005%, S< 0.0005%. 3.2 Tungsten-tin mixed fluxing agent: the ratio is 9:1, C< 0.0010%, S< 0.0005%. 3.3 Barium carbonate shall be fine powder with a content of more than 99.9%. Dry at 105 °C for 3 h and cool in a desiccator. 3.4 Standard sample: certified reference material with carbon and sulfur content similar to the sample to be tested. Note: It is better to use ore (or iron ore) reference material with similar composition. 3.5 The ceramic crucibles shall be burned for 4 hours in a high-temperature heating furnace higher than 1000 °C, or burned with oxygen until the blank value is the lowest; then, cool them in a desiccator for later use.

4 Instruments

High-frequency induction infrared carbon and sulfur analyzer. The instrument shall be able to reach the following indicators: - Power of the high-frequency furnace: 1.0 kW~2.5 kW; - Frequency: greater than 6.0 MHz; - Sensitivity of the detector: higher than 0.0001%.

5 Samples

The particle size of the samples shall be less than 160 μm; bake them in an oven at 105 °C~110 °C for 2 h, and cool them to room temperature in a desiccator.

6 Analysis steps

6.1 Sample Weigh 0.10 g sample; the weight shall be accurate to 0.0001 g. 6.2 Number of measurements Independently perform two measurements; take the average value. 6.3 Instrument Preparation Prepare the instrument for use according to the recommended conditions for the instrument. Adjust and stabilize the instrument by burning several samples similar to the one to be tested. 6.4 Blank value calibration Weigh 1.0 g of pure iron fluxing agent (3.1) and 1.0 g~1.5 g of tungsten-tin mixed fluxing agent (3.2) in turn; place them in the burnt crucible (3.5) to measure the amounts of carbon and sulfur; then obtain the blank values of ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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Question 1: How long will the true-PDF of English version of YS/T 820.16-2012 be delivered?

Answer: The full copy PDF of English version of YS/T 820.16-2012 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 YS/T 820.16-2012_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 820.16-2012_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+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. www.ChineseStandard.us -- YS/T 820.16-2012 -- 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.

How to buy and download a true PDF of English version of YS/T 820.16-2012?

A step-by-step guide to download PDF of YS/T 820.16-2012_English

Step 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 "YS/T 820.16-2012".
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.
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