GB/T 6324.4-2008 English PDF

US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 6324.4-2008: Test method of organic chemical products -- Part 4: Determination of trace sulfur in organic liquid products -- Micro-coulometric method
Status: Valid

GB/T 6324.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6324.4-2008	139	Add to Cart	3 days	Test method of organic chemical products -- Part 4: Determination of trace sulfur in organic liquid products -- Micro-coulometric method	Valid
GB/T 6324.4-1986	239	Add to Cart	2 days	Determination of trace sulphur in products of organic liquid--Micro-coulometry method	Obsolete

Similar standards

GB/T 6324.6   GB/T 6324.3   GB/T 6324.5   GB/T 6324.12   GB/T 6324.11   GB/T 6324.10   

Basic data

Standard ID: GB/T 6324.4-2008 (GB/T6324.4-2008)
Description (Translated English): Test method of organic chemical products -- Part 4: Determination of trace sulfur in organic liquid products -- Micro-coulometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.040
Word Count Estimation: 6,625
Date of Issue: 2008-05-14
Date of Implementation: 2008-10-01
Older Standard (superseded by this standard): GB/T 6324.4-1986
Quoted Standard: GB/T 6682-1992; GB/T 8170-1987
Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies test methods for trace organic liquid product sulfur was determined by Microcoulometry. GB/T 6324 applies to this part of the sulfur content of organic liquid product samples within 0. 5mg/kg ~ 1000mg/kg range.

GB/T 6324.4-2008: Test method of organic chemical products -- Part 4: Determination of trace sulfur in organic liquid products -- Micro-coulometric method

---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.
Test method of organic chemical products Part 4. Determination of trace sulfur in organic liquid products Microcoulometric method ICS 71.040 G15 National Standards of People's Republic of China Replacing GB/T 6324.4-1986 Test Method for Organic chemical products Part 4. organic liquid chemical products, trace sulfur Determination of micro coulometry Posted 2008-05-14 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 6324 is divided into six sections. --- Part 1. Liquid water-miscible organic chemical products test; --- Part 2. Determination of the volatile organic liquid residue after evaporation of the water bath dry; --- Part 3. Organic Chemical method for the determination of potassium permanganate reducing substance; --- Part 4. Liquid organic products - Determination of trace sulfur Microcoulomb; --- Part 5. Organic chemical products of carbonyl compounds content - Volumetric method; --- Part 6. Organic chemical products Spectrophotomeric carbonyl compounds content. This section GB/T 46324 Part of. This Part replaces GB/T 6324.4-1986 "organic liquid products - Determination of trace sulfur Microcoulometry." This portion of the GB/T 6324.4-1986 compared to the main changes are as follows. --- Expanding the scope of the standard (see Chapter 1); --- Canceled instrument diagram (3.1, Chapter 5 of this edition 1986 edition); --- Increased dibenzothiophene and dibutyl sulfide material and two standard iso-octane and cetane two solvents (see 4.5 and 4.6); --- Increase the types of electrolyte (see 4.4); --- Redefined the scope of the reaction conditions (1986 version 5.1.4, this version 6.2); --- Redefined repetitive sample, increasing the reproducibility (1986 edition, Chapter 6, Section 8 of this edition). This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee on Organic Chemistry Club (SAC/TC63/SC2) centralized. This section drafted by. China PetroChina Liaoyang Petrochemical Company. The main drafters of this section. Liudian Li, Yang Dan, Li Ju, Hongli Jing, Li Changjun. This section was first issued in 1986. Test Method for Organic chemical products Part 4. organic liquid chemical products, trace sulfur Determination of micro coulometry

1 Scope

GB/T 6324 This section specifies the test methods for trace sulfur in organic liquid product was determined by Microcoulometry. GB/T 6324 This section applies to the sulfur content in organic liquid product sample in the 0.5mg/kg ~ 1000mg/kg range.

2 Normative references

The following documents contain provisions by GB/T 6324 this part of the reference in terms of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Laboratory use - Specification and test methods (. 1987 neq ISO 3696) GB/T 6682-1992 Analysis GB/T 8170-1987 numerical rounding rules

3 PRINCIPLE OF THE METHOD

Samples gasification stage gasification cracking tube and mixed with a carrier gas into the combustion zone is mixed with oxygen and burned, the sulfur is converted to sulfur dioxide, with a carrier gas Went into the titration cell, the electrolyte triiodide ion (I3-) the following reaction. I3- + SO2 + H2 → O SO3 + 3I- + 2H + Titration cell triiodide ion (I3-) concentration decreased, indicating - an indication of the reference electrode and the change and given bias compared this Microcoulometry signal is input to the amplifier and amplified output voltage is applied to the electrodes for electrolysis, electrolysis at the anode the following reaction. 3I → - I3- + 2e Consumed triiodide ion (I3-) replenished, the consumption of electricity is the time integral of the electrolysis current, according to Faraday's law of electrolysis Calculate the sulfur content of the sample.

4 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682-1992 the provisions of secondary water. 4.1 Carrier gas. nitrogen, argon or helium, the volume fraction of not less than 99.5%. 4.2 Oxygen. volume fraction of not less than 99.5%. 4.3 electrolyte 1. 0.5g of potassium iodide, add a little water to dissolve, add 4mL acetic acid solution (1 + 9), diluted with water to 1000mL, Load brown bottle, stored in a cool dark place, the use of a period not exceeding one month. Suitable halogen content of less than 60μg/mL, the small total nitrogen content At 100μg/mL, heavy metals (nickel, vanadium, lead) content is less than 500mg/kg of the sample. 4.4 electrolytic solution 2. 0.5g of potassium iodide, 0.6 g of sodium azide, dissolved in 500mL of water, adding 5mL of glacial acetic acid, diluted with water to 1000mL, loaded brown bottle, stored in a cool dark place, the use of a period not exceeding one month. Suitable halogen content of the sulfur content of less than 10 times, the total nitrogen content of less than 1000 times the sulfur content of heavy metals (nickel, vanadium, lead) content is less than 500mg/kg of the sample. 4.5 Standard substance. dibenzothiophene (C6H4C6H4S), thiophene (C4H4S) or dibutyl disulfide (C4H9C4H9S2), etc., the mass fraction of Not less than 98%. 4.6 solvent. iso-octane, n-heptane or hexadecane and the like. Sulfur-free solvent integrated value displayed under test conditions. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 6324.4-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 6324.4-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 6324.4-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 6324.4-2008_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 GB/T 6324.4-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6324.4-2008 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.