SN/T 3793-2014 English PDF

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SN/T 3793-2014: Determination of total phosphorus, potassium content in compound fertilizers - X-ray fluorescence spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3793-2014	319	Add to Cart	3 days	Determination of total phosphorus, potassium content in compound fertilizers - X-ray fluorescence spectrometry	Valid

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Basic data

Standard ID: SN/T 3793-2014 (SN/T3793-2014)
Description (Translated English): Determination of total phosphorus, potassium content in compound fertilizers - X-ray fluorescence spectrometry
Sector / Industry: Commodity Inspection Standard (Recommended)
Word Count Estimation: 12,145
Quoted Standard: JJG 810; SN/T 0736.2
Regulation (derived from): AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine
Issuing agency(ies): General Administration of Customs
Summary: This Standard specifies the method for the determination of nitrogen, phosphorus and potassium compound fertilizer compound total phosphorus (P2O5), potassium (K2O) content using wavelength dispersive X-ray fluorescence spectrometer. This Standard applies

SN/T 3793-2014: Determination of total phosphorus, potassium content in compound fertilizers - X-ray fluorescence spectrometry

---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 potassium -X -ray fluorescence spectrometry; total phosphorus compound fertilizers) People's Republic of China Entry-Exit Inspection and Quarantine Standards Total phosphorus in compound fertilizer, potassium determination X-ray fluorescence spectrometry Determinationoftotalphosphorus, potassiumcontentincompoundfertilizers- Issued on. 2014-01-13 2014-08-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Manzhouli Exit Inspection and Quarantine. The main drafters of this standard. Du Yurong, Liu Wei, Song Jing, Liu Zhenwei, Tashiro. Total phosphorus in compound fertilizer, potassium determination X-ray fluorescence spectrometry

1 Scope

This standard specifies the determination of nitrogen, phosphorus and potassium compound fertilizer compound total phosphorus (P2O5) using wavelength dispersive X-ray fluorescence spectrometer, potassium (K2O) The method of content. This standard applies to the determination of nitrogen, phosphorus and potassium compound fertilizer compound total phosphorus (P2O5), potassium (K2O) content. Determination of the range in Table 1. Table 1 measuring range phosphorus, potassium content Project measurement range (mass fraction) /% TP 3.07 ~ 27.63 Potassium 3.09 ~ 28.88

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. JJG810 wavelength dispersive X-ray fluorescence spectrometer Determination of SN/T 0736.2 Test Method for Water and export of fertilizers

3 Method Summary

The samples were prepared as borate glass melt samples. Measuring samples of phosphorus, potassium and the influence of elements characteristic X-ray fluorescence spectrum Light intensity, according to the calibration curve obtained phosphorus, potassium content.

4 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical reagents. 4.1 lithium tetraborate and lithium metaborate mixed flux (67.33), X-ray fluorescence dedicated reagent. Before use at 650 ℃ burning 4h, then In the drier cooled storage. 4.2 bromide. DAP 4.3, high-purity reagents or standard material. At 50 ℃, vacuum degree of 6.4 × 104Pa ~ 7.1 × 104Pa vacuum oven dry Dry 2h, then cooled in a desiccator. 4.4 potassium, high purity reagents or standard material. Dried at 130 ℃ 2h, then cooled in a desiccator. 4.5 potassium chloride, high purity reagents or standard material. Burning 6h at 500 ℃, then cooled in a desiccator. 4.6 saturated solution of lithium bromide. The lithium bromide (4.2) dissolved in water to saturation, and filtered. ......

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