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SN/T 0837.2-2011 English PDF

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Q: Should I purchase the latest version SN/T 0837.2-2011?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SN/T 0837.2-2011 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.

US$139.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 0837.2-2011: Method for chemical analysis of arsenic trioxide for import and export. Part 2: Determination of moisture
Status: Valid

SN/T 0837.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0837.2-2011	139	Add to Cart	2 days	Method for chemical analysis of arsenic trioxide for import and export. Part 2: Determination of moisture	Valid
SN/T 0837.2-1999	199	Add to Cart	2 days	Method for the determination of moisture in arsenic trioxide for export	Obsolete

Similar standards

GB/T 3049 GB/T 3051 GB/T 3050 SN/T 3732 SN/T 0837.3 SN/T 0837.1

Basic data

Standard ID: SN/T 0837.2-2011 (SN/T0837.2-2011)
Description (Translated English): Method for chemical analysis of arsenic trioxide for import and export. Part 2: Determination of moisture
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: G10
Word Count Estimation: 5,573
Date of Issue: 2011-02-25
Date of Implementation: 2011-07-01
Older Standard (superseded by this standard): SN/T 0837.2-1999
Regulation (derived from): ?AQSIQ-Inspection [2011] 90
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the determination of the import and export of arsenic trioxide in water. This section applies to the determination of the import and export of arsenic trioxide in water. Measuring range: <2% (mass fraction).

SN/T 0837.2-2011: Method for chemical analysis of arsenic trioxide for import and export. Part 2: Determination of moisture

---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.
Method for chemical analysis of arsenic trioxide for import and export Part 2. Determination of moisture People's Republic of China Entry-Exit Inspection and Quarantine Standards Instead of the SN/T 0837.2-1999 Import and export of chemical analysis of arsenic trioxide Part 2. Determination of moisture content Part 2. Determinationofmoisture 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 0837 "Importers and chemical analysis of arsenic trioxide" series of standards is divided into four parts. Determination of Arsenic trioxide content. --- Part 1 --- Part 2. Determination of moisture content --- Part 3. Determination of iron content --- Part 4. Determination of chlorine ion content This section SN/T Section 20837 of. The partial replacement of SN/T 0837.2-1999 "Determination of arsenic trioxide in the export of water." This section compared with the SN/T 0837.2-1999, the main changes are as follows. --- Rewritten Chapter 3; --- In Chapter 4, "Sample Preparation", by deleting the content stored on the sample. Note the warnings on the first modified this Part; --- Corrected allowable difference errors will allow poor representation modified to express precision specification. This section proposed and managed by the National Certification and Accreditation Administration Committee. This section was drafted by. People's Republic of China Guangdong CIQ. Drafters of this section. Lu Zhenguo, He Yingxian, Yu Pei Zhong, Zhong Zhiguang, Zhangzhen Kun, Zhao Quan, Chen Wenjie. This part of the alternative criteria previously issued as follows. --- ZBG10001-1986 Chapter 3. Determination of moisture; --- SN/T 0837.2-1999. Import and export of chemical analysis of arsenic trioxide Part 2. Determination of moisture content Warning. Arsenic trioxide is highly toxic chemicals, the use of this part of the regular staff should have practical experience of laboratory work. This section and It does not indicate a possible security problem. The user's responsibility to take appropriate safety and health practices and to ensure compliance with relevant national regulations condition.

1 Scope

This section provides the determination of arsenic trioxide in the import and export of water. This section applies to the determination of moisture in the import and export of arsenic trioxide. Measurement range. < 2% (mass fraction).

2 principle of the method

Sample in sulfuric acid desiccator, after drying to constant weight concentrated sulfuric acid, calculated according to the amount of water loss in mass.

3 Instrument

3.1 Analysis of balance. a sense of the amount of 0.1mg. 3.2 sulfuric acid dryer. Glass drier, plus about 500mL of concentrated sulfuric acid (ρ1.84g/mL) as a desiccant. 3.3 glass weighing bottle. diameter of about 6cm, height of about 3cm.

4 Sample Preparation

The sample was mixed simple, fast sealing plastic bag for moisture measurement. Step 5 Analysis 5.1 Sample Weigh sample 10g ~ 15g, accurate to 0.1mg. Independently carry out two measurements, the results of the arithmetic mean. 5.2 Determination The sample was placed in the dryer after sulfuric acid constant weight weighing bottle glass, semi-open lid, placed sulfate drier than 16h, cover Cover, remove and weigh. Repeat dried to constant weight. Poor quality does not exceed 1mg twice before and after is a constant weight.

6 calculated results

Moisture mass fraction expressed by the formula (1). w = (M1 m-m2) m × 100 (1) ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 0837.2-2011_English be delivered?

Answer: Upon your order, we will start to translate SN/T 0837.2-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of SN/T 0837.2-2011_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 0837.2-2011_English will be deemed to be sold to your employer/organization who actually pays 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. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version SN/T 0837.2-2011?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SN/T 0837.2-2011 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.