Search result: GB/T 23843-2009
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Inorganic chemical products -- General method for the determination of total phosphorus (V) oxide content
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GB/T 23843-2009
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| Standard ID | GB/T 23843-2009 (GB/T23843-2009) | | Description (Translated English) | Inorganic chemical products. General method for the determination of total phosphorus(V)oride content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G10 | | Classification of International Standard | 71.060.01 | | Word Count Estimation | 8,831 | | Date of Issue | 2009-05-18 | | Date of Implementation | 2010-02-01 | | Adopted Standard | ISO 3706-1976, MOD | | Drafting Organization | Hubei Xingfa Chemicals Group Co., Ltd. | | Administrative Organization | National Standardization Technical Committee Chemistry Inorganic Chemicals Branch | | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.6 (Total No.146) | | Proposing organization | China Petroleum and Chemical Industry Association | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration 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) 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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