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BSI PD CEN/TR 14061:2021

BSI PD CEN/TR 14061:2021

$142.49

Fertilizers. Determination of dust content

Published By Publication Date Number of Pages
BSI 2021 26
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This document is applicable to crushing strength measurement as applied to grains of fertilizer obtained in prilling or wet-granulation process. Compacted or crystalline materials were not considered.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Technical Symbols
8 4.2 Statistical symbols and abbreviations
5 Calculation of the spouting bed apparatus
5.1 Particle terminal velocity
9 5.2 Spouting section
5.3 Maximum spoutable bed height
5.4 Design of apparatus
10 5.5 Flowmeter
6 Initial testing
6.1 Determination of dust weight
6.2 Setting the test time
6.3 Preliminary ringtests
11 7 Conclusive ring test
7.1 General
7.2 Apparatus
7.3 Sample preparation
7.4 Procedure, test plan
7.5 Statistical methods
7.5.1 Statistical model
7.5.2 Outliers
7.5.3 Regression analysis
7.5.4 Correction for adapter-effect
7.5.5 ANOVA-analysis
12 7.6 Statistical analysis of test data
7.6.1 Deviation from test plan
7.6.2 Example — granulated NPK
7.6.2.1 Finding outliers
13 7.6.2.2 Interpretation of regression model
15 7.6.2.3 Removing adapter effect
7.6.2.4 ANOVA analysis
16 7.6.3 Summary of ANOVA
17 8 Other methods
9 Conclusion
18 Annex A (informative)Method for the determination of dust potential
A.1 Introduction
A.2 Scope
A.3 Terms and definitions
A.4 Principle
A.5 Apparatus
20 A.6 Safety
21 A.7 Test samples
A.8 Calibration of flowmeter
A.8.1 General
A.8.2 Calibration curves
A.9 Procedure
A.9.1 Checking procedure
A.9.2 Adjusting the spouting height
22 A.9.3 Testing the material
A.10 Expression of results
23 A.11 Test report
24 Annex B (informative)Optical methods for determination of fertilizer dust

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BSI PD CEN/TR 14061:2021
$142.49