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GB/T 6276.9-2010: Determination of ammonium hydrogen carbonate for industrial use -- Part 9: Health metal content -- Visible turbidimetric method
Status: Obsolete GB/T 6276.9: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6276.9-2010 | English | 199 |
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Determination of ammonium hydrogen carbonate for industrial use -- Part 9: Health metal content -- Visible turbidimetric method
| Obsolete |
GB/T 6276.9-2010
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| GB/T 6276.9-1986 | English | 199 |
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Ammonium hydrogen carbonate for industrial use--Determination of heavy metal content--Visible turbidimetric method
| Obsolete |
GB/T 6276.9-1986
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PDF similar to GB/T 6276.9-2010
Basic data | Standard ID | GB/T 6276.9-2010 (GB/T6276.9-2010) | | Description (Translated English) | Determination of ammonium hydrogen carbonate for industrial use -- Part 9: Health metal content -- Visible turbidimetric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G12 | | Classification of International Standard | 71.060.50 | | Word Count Estimation | 5,559 | | Date of Issue | 2010-06-30 | | Date of Implementation | 2011-01-01 | | Older Standard (superseded by this standard) | GB/T 6276.9-1986 | | Quoted Standard | HG/T 2843 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.2 (Total No.157) | | 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 the use of visual turbidimetry content of heavy metals in industrial use of ammonium bicarbonate. This section applies to the determination of ammonium bicarbonate industrial heavy metal content. | GB/T 6276.9-2010: Determination of ammonium hydrogen carbonate for industrial use -- Part 9: Health metal content -- Visible turbidimetric 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.
Determination of ammonium hydrogen carbonate for industrial use Part 9. Health metal content Visible turbidimetric method
ICS 71.060.50
G12
National Standards of People's Republic of China
Replacing GB/T 6276.9-1986
Determination of ammonium bicarbonate industrial
Part 9. heavy metal content Visible turbidimetric method
Part 9. Heavymetalcontent-Visibleturbidimetricmethod
Issued on. 2010-06-30
2011-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 6276 "industrial use - Determination of ammonium bicarbonate method" is divided into nine sections.
--- Part 1. ammonium bicarbonate content of acid-base titration;
--- Part 2. potentiometric titration of chloride content;
--- Part 3. sulphide content Visible turbidimetric method;
--- Part 4. sulphate content Visible turbidimetric method;
--- Part 5. ash content by weight method;
--- Part 6. iron content - Phenanthroline spectrophotometric method;
--- Part 7. arsenic content diethyl dithiocarbamate silver spectrophotometry;
--- Part 8. arsenic content Gutzeit method;
--- Part 9. heavy metal content Visible turbidimetric method.
This part of GB/T 96276 Part of.
This standard replaces GB/T 6276.9-1986 "industrial use - Determination of ammonium bicarbonate heavy metal content Visible turbidimetric method."
This portion of the GB/T 6276.9-1986 The main differences are.
--- Reagent solution, standard titration solution preparation and calibration methods such as the implementation of HG/T 2843 standard.
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the National Standardization Technical Committee centralized fertilizer and soil conditioner.
This section drafted by. National Fertilizer Quality Supervision and Inspection Center (Shanghai).
The main drafters of this section. Zhong Wenyi, Wang Ting.
This section was first issued in 1986.
Determination of ammonium bicarbonate industrial
Part 9. heavy metal content Visible turbidimetric method
1 Scope
GB/T 6276 This section provides the use of visual turbidimetry industrial heavy metal content of ammonium bicarbonate.
This section applies to the determination of ammonium bicarbonate content of heavy metals for industrial use.
2 Normative references
The following documents contain provisions which, through reference to GB/T 6276 to the present, constitute provisions 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.
HG/T 2843 fertilizer products for chemical analysis commonly used standard titration solution, standard solution, reagent solution and indicator solution
Principle 3
Under weakly acidic conditions, hydrogen sulfide solution was added to the test solution, the test solution with the heavy metal sulfide is generated, and then lead into the turbidity standard
Line compared to determine heavy metals (as Pb) content.
4 Reagents and materials
The following part-corrosive agents, such as careful operator shall immediately wash with water splashed on the skin, severe cases should be immediately
treatment.
This standard reagent solution and water, in the specifications and method of preparation is not specified, it shall comply with the provisions of HG/T 2843's.
4.1 aqueous ammonia solution, 23.
4.2 hydrochloric acid solution, 11.
4.3 acetic acid solution, 1mol/L.
4.4 hydrogen sulphide saturated aqueous solution.
4.5 lead standard solution, 1mg/mL.
4.6 lead standard solution, 0.01mg/mL. accurately diluted 100-fold with lead standard solution (4.5), only that day.
4.7 pairs nitrophenol indicator solution.
Step 5 Analysis
Preparation 5.1 turbidity standard
In six 50mL colorimetric tube were added 0mL, 1.0mL, 2.0mL, 3.0mL, 4.0mL, 5.0mL lead standard solution
(4.6), the solution was added 2mL of acetic acid, diluted with water to approximately 35mL.
5.2 Determination
Weigh 10g sample (accurate to 0.1g), placed in 250mL beaker, add 50mL water, slowly heated to boiling by-doing and carbon dioxide
Ammonia was added 2mL of hydrochloric acid solution, then heated to boiling 5min, add 1 drop of Nitrophenol indicator solution was cooled, dropping ammonia solution to the test solution just
Good yellow and transferred to 50mL colorimetric tube, add 2mL acetic acid solution and diluted with water to approximately 35mL, 10mL added simultaneously with the standard tube
Hydrogen sulphide saturated aqueous solution was diluted with water to the mark, shake well placed after 10min, and the turbidity standard for comparison.
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