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GB/T 23843-2009 English PDF

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GB/T 23843-2009: Inorganic chemical products -- General method for the determination of total phosphorus (V) oxide content
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 23843-2009	English	189	Add to Cart	3 days [Need to translate]	Inorganic chemical products -- General method for the determination of total phosphorus (V) oxide content	Valid	GB/T 23843-2009

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Basic data

Standard ID	GB/T 23843-2009 (GB/T23843-2009)
Description (Translated English)	Inorganic chemical products -- General method for the determination of total phosphorus (V) oxide content
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G10
Classification of International Standard	71.060.01
Word Count Estimation	8,856
Date of Issue	2009-05-18
Date of Implementation	2010-02-01
Adopted Standard	ISO 3706-1976, MOD
Regulation (derived from)	PRC National Standard Approval Announcement 2009 No.6 (Total No.146)
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 general method of inorganic chemical products pentoxide content determination-Quimociac gravimetric method. This standard applies to the determination of inorganic phosphorus chemical products constant and phosphates.

GB/T 23843-2009: Inorganic chemical products -- General method for the determination of total phosphorus (V) oxide content

---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.
Inorganic chemical products. General method for the determination of total phosphorus (V) oride content ICS 71.060.01 G10 National Standards of People's Republic of China Inorganic chemical products for the determination of phosphorus pentoxide General Method (ISO 3706. 1976, MOD) Posted 2009-05-18 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts the International Standard ISO 3706. 1976 "phosphoric acid for industrial use (including foodstuffs) --- phosphorus (V) oxide total content Determination --- Quimociac gravimetric method "(in English). This standard is based on international standards ISO 3706. 1976 --- measure the total content of phosphorus oxide (V) "phosphoric acid for industrial use (including foodstuffs) Set --- Quimociac weight method "redrafted. Adopting ISO 3706. 1976, the standard of this made some changes, and structural differences related to technical differences have been incorporated into the text, and They relate in terms of the margin identified by a single vertical line. Appendices A and B are given in these technical and structural differences List of differences and the reasons for your reference. The Standard Appendix A and Appendix B is an informative annex. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee chemical inorganic chemicals Club (SAC/TC63/SC1) centralized. This standard is drafted by. Hubei Xingfa Chemicals Group Co., Ltd., CNOOC Tianjin Chemical Research & Design Institute. The main drafters of this standard. Li Guangming, Xu Biwen. This standard is the first release. Inorganic chemical products for the determination of phosphorus pentoxide General Method

1 Scope

This standard specifies the general method of inorganic chemical products phosphorus pentoxide content determination --- Quimociac gravimetric method. This standard applies to inorganic chemical products in the constant determination of phosphorus and phosphate.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) Preparation of HG/T 3696.2 inorganic chemical products, chemical analysis of impurity standard solution Preparations of HG/T 3696.3 inorganic chemical products, chemical analysis

3 PRINCIPLE OF THE METHOD

In acidic medium, the test solution was added phosphorus pentoxide precipitant Quimociac a precipitate. By filtration, drying, said Amount calculated phosphate content.

4 Safety Tips

Reagents used in this test method are toxic or corrosive and flammable, the operation must be careful! As will be splashed on the skin Immediately wash with water, severe cases should be treated immediately.

5 General Provisions

This standard reagents and water in the absence of other requirements specified, refers to three analytical reagent and GB/T 6682-2008 specified in water. Impurities used in the test standard solution, preparations and products, did not indicate when the other requirements, according to HG/T 3696.2, HG/T 3696.3 Provisions prepared.

6 Reagents

6.1 hydrochloric acid; 6.2 nitric acid; 6.3 Quimociac solution.

7 instruments and equipment

7.1 sintered glass crucible. filter plate pore size of 5μm ~ 15μm; 7.2 electric oven. the temperature can be controlled at 180 ℃ ± 5 ℃ or 250 ℃ ± 10 ℃. Analysis Step 8 8.1 Preparation of test solution Weigh the amount of sample (containing phosphorus pentoxide about the quality of 600mg), accurate to 0.0002g, placed in 100mL beaker, add

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