GB/T 6276.7-2010 English PDF

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GB/T 6276.7-2010: Determination of ammonium hydrogen carbonate for industrial use -- Part 7: Arsenic content -- Silver diethyl dithiocarbamate photometric method
Status: Obsolete

GB/T 6276.7: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6276.7-2010	239	Add to Cart	3 days	Determination of ammonium hydrogen carbonate for industrial use -- Part 7: Arsenic content -- Silver diethyl dithiocarbamate photometric method	Obsolete
GB/T 6276.7-1986	199	Add to Cart	2 days	Ammonium hydrogen carbonate for industrial use--Determination of arsenic content--Silver diethyl dithiocarbamate photometric method	Obsolete

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Basic data

Standard ID: GB/T 6276.7-2010 (GB/T6276.7-2010)
Description (Translated English): Determination of ammonium hydrogen carbonate for industrial use -- Part 7: Arsenic content -- Silver diethyl dithiocarbamate photometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G12
Classification of International Standard: 71.060.50
Word Count Estimation: 6,653
Date of Issue: 2010-06-30
Date of Implementation: 2011-01-01
Older Standard (superseded by this standard): GB/T 6276.7-1986
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 diethyl dithiocarbamate silver spectrophotometry industrial arsenic content of ammonium bicarbonate. This section applies to the determination of arsenic content in ammonium bicarbonate industrial use.

GB/T 6276.7-2010: Determination of ammonium hydrogen carbonate for industrial use -- Part 7: Arsenic content -- Silver diethyl dithiocarbamate photometric 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 7. Arsenic content.Silver diethyl dithiocarbamate photometric method ICS 71.060.50 G12 National Standards of People's Republic of China Replacing GB/T 6276.7-1986 Determination of ammonium bicarbonate industrial Part 7. The arsenic content Diethyl dithiocarbamate spectrophotometry silver Part 7. Arseniccontent-Silverdiethyldithiocarbamatephotometricmethod 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 76276 Part of. Industrial ammonium bicarbonate arsenic content in this section instead of GB/T 6276.7-1986 "diethyl dithiocarbamate silver stars Spectrophotometric method. " This part of GB/T 6276-1986 The main differences are. --- Deleted equivalent to ISO 4275. 1977 Content; --- Reagent solution, such as a standard titration solution preparation and calibration methods are the implementation of HG/T 2843; --- Increasing the parallel determination results allow poor regulations. 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. Wang Ting, Zhong Wenyi. This section was first issued in 1986. Determination of ammonium bicarbonate industrial Part 7. The arsenic content Diethyl dithiocarbamate spectrophotometry silver

1 Scope

GB/T 6276 This section provides the use of diethyl dithiocarbamate spectrophotometric determination of arsenic silver for industrial use of ammonium bicarbonate content. This section applies to the determination of arsenic content in ammonium bicarbonate 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 references, All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encourage an agreement under this section Parties to study 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 acidic conditions, the zinc metal is reduced to arsine arsenic, taken up in pyridine solution diethyl dithiocarbamate silver precipitated purple Red colloidal dispersion of silver at the maximum absorption wavelength at 540nm, absorbance was measured by a spectrophotometer to calculate the arsenic content.

4 Equipment

4.1 spectrophotometer with 1cm cuvette. 4.2 Arsenic given instrument, see Figure 1. Millimeters 1 --- 100mL flasks, arsine to happen; 2 --- connecting pipe, for trapping hydrogen sulfide; 3 --- 10mL graduated cylinder, absorbing arsine used. ......

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