YS/T 820.24-2012 PDF English
US$135.00 · In stock · Download in 9 secondsYS/T 820.24-2012: Methods for chemical analysis of laterite nickel ores. Part 24: Determination hygroscopic moisture content. Gravimetric method Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| YS/T 820.24-2012 | English | 135 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Methods for chemical analysis of laterite nickel ores. Part 24: Determination hygroscopic moisture content. Gravimetric method
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: YS/T 820.24-2012
YS/T 820.24-2012: Methods for chemical analysis of laterite nickel ores. Part 24: Determination hygroscopic moisture content. Gravimetric method
---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/YST820.24-2012
YS
INDUSTRY STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 73.060
D 04
Methods for chemical analysis of laterite nickel ores - Part
24.Determination hygroscopic moisture content -
Gravimetric method
Issued on. NOVEMBER 7, 2012
Implemented on. MARCH 1, 2013
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 6
2 Method summary... 6
3 Apparatus... 6
4 Samples... 6
5 Analysis steps... 6
6 Calculation of analysis results... 7
7 Precision... 7
8 Test report... 8
Foreword
This part was drafted in accordance with the rules given in GB/T 1.1-2009.
YS/T 820-2012 Methods for chemical analysis of laterite nickel ores is divided into 26
parts.
-- Part 1.Determination of nickel content - Flame atomic absorption spectrometry;
-- Part 2.Determination of nickel content - Dimetylglyoxime spectrophotometry;
-- Part 3.Determination of total iron content - Potassium dichromate titration;
-- Part 4.Determination of phosphorus content - Phosphorus molybdenum blue
spectrophotometry;
-- Part 5.Determination of cobalt content - Flame atomic absorption spectrometry;
-- Part 6.Determination of copper content - Flame atomic absorption spectrometry;
-- Part 7.Determination of calcium and magnesium content - Flame atomic
absorption spectrometry;
-- Part 8.Determination of silica content - Potassium silicafluoride titrimetric
method;
-- Part 9.Determination of scandium and cadmium contents - Inductively coupled
plasma mass spectrometry;
-- Part 10.Determination of calcium, cobalt, copper, magnesium, manganese,
nickel, phosphate and zinc content - Inductively coupled plasma atomic
emission spectrometry;
-- Part 11.Determination of fluorine and chlorine contents - Ion chromatography;
-- Part 12.Determination of manganese content - Flame atomic absorption
spectrometry;
-- Part 13.Determination of lead content - Flame atomic absorption spectrometry;
-- Part 14.Determination of zinc content - Flame atomic absorption spectrometry;
-- Part 15.Determination of cadmium content - Flame atomic absorption
spectrometry;
-- Part 16.Determination of carbon and sulfur content - High frequency combustion
with infrared absorption spectrometry;
-- Part 17.Determination of arsenic, antimony and bismuth contents - Hydride
generation-atomic fluorescence spectrometry;
-- Part 18.Determination of mercury content - Cold atomic absorption
spectrometry;
-- Part 19.Determination of aluminum, chromium, iron, magnesium, manganese,
nickel and silicon contents - Energy-dispersive X-ray fluorescence spectrometry;
-- Part 20.Determination of aluminum content - EDTA titration;
-- Part 21.Determination of chromium content - The ammonium-ferrous sulfate
titration method;
-- Part 22.Determination of magnesium content - EDTA titration;
-- Part 23.Determination of cobalt, iron, nickel, phosphorus, aluminum oxide,
calcium oxide, chromium oxide, magnesium oxide, manganese oxide, silicon
dioxide and titanium dioxide content - Wavelength dispersive X-ray
fluorescence spectrometry;
-- Part 24.Determination hygroscopic moisture content - Gravimetric method;
-- Part 25.Determination of combined water content - Gravimetric method;
-- Part 26.Determination of loss on ignition - Gravimetric method.
This part is Part 24 of YS/T 820-2012.
This document shall be under the jurisdiction of the National Technical Committee on
Nonferrous Metals of Standardization Administration of China (SAC/TC243).
Drafting organizations of this standard. Beijing General Research Institute of Mining
and Metallurgy, Bayuquan Entry-Exit Inspection and Quarantine Bureau of the People's
Republic of China, Jinchuan Group Co., Ltd.
Drafting organizations of this part. Tianjin Entry-Exit Inspection and Quarantine
Bureau of the People's Republic of China.
Participated organizations in the drafting of this part. Nantong Entry-Exit Inspection
and Quarantine Bureau of the People's Republic of China, Changshu Entry-Exit
Inspection and Quarantine Bureau of the People's Republic of China, Guangzhou
Research Institute of Nonferrous Metals, Guangxi Yinyi Advanced Material Co., Ltd.,
Shandong Xinhai Technology Co., Ltd.
The main drafters of this part. Ma Deqi, Hu Dexin, Su Mingyue, Hou Jin, Wu Guangyu,
Dai Fengying, Chen Xiaodong, Wang Duodong, Wang Yaqin, Li Fenglong, He
Zhongyu, Liu Hongsong, Sun Fengfei.
Methods for chemical analysis of laterite nickel ores - Part
24.Determination hygroscopic moisture content -
Gravimetric method
1 Scope
This part of YS/T 820 specifies the method for the determination of hygroscopic
moisture content in the analysis of laterite nickel ores.
This part applies to the determination of the hygroscopic moisture content in the
analysis of laterite nickel ores, the determination range is 0.10%~7.00%.
2 Method summary
The sample is dried at 105 °C~110 °C, and the hygroscopic moisture content is
calculated by the decrement method.
3 Apparatus
3.1 Weighing bottle. The diameter is not less than 5 cm, and it is equipped with a tight
ground cap.
4 Samples
The particle size of the sample shall be less than 160 μm, and the sample shall have
been balanced in the air.
5 Analysis steps
5.1 Samples
Pre-dry the weighing bottle (3.1) in a drying oven (3.2) at 105 °C. After drying for 1
hour, take it out, cool it in a desiccator for 20-30 minutes, and weigh it. Weigh 1.0 g of
the air-balanced sample into the weighing bottle, accurate to 0.0002 g, and spread it
evenly in the weighing bottle.
5.3 Determination
Place the open weighing bottle containing the sample (5.1) and the bottle cap in a drying
oven (3.2) that has been stabilized at 105 °C, and dry for 1 hour; take them out from the
drying oven, cover the ground cap immediately, and put the bottle in the desiccator to
cool for 20 min~30 min; take out the weighing bottle from the desiccator, gently open
the ground cap, then quickly cover it, and weigh them.
6 Calculation of analysis results
The hygroscopic moisture content is expressed as the mass fraction of water 𝑤ୌమ, the
value is expressed in %, and calculated according to formula (1).
7 Precision
The measured values obtained from two independent tests under repeatability
conditions shall be within the average value range given in Table 1; the absolute value
of [Translator's note.
8 Test report
This chapter specifies the content to be included in the test report. At least the following
aspects shall be given.
......
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 YS/T 820.24-2012 be delivered?Answer: The full copy PDF of English version of YS/T 820.24-2012 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 820.24-2012_English with my colleagues?Answer: Yes. The purchased PDF of YS/T 820.24-2012_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+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- YS/T 820.24-2012 -- 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 820.24-2012?A step-by-step guide to download PDF of YS/T 820.24-2012_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 "YS/T 820.24-2012".
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.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|