🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 17289-2:2020:2021 Edition

BS EN 17289-2:2020:2021 Edition

$102.76

Characterization of bulk materials. Determination of a size-weighted fine fraction and crystalline silica content – Calculation method

Published By Publication Date Number of Pages
BSI 2021 20
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document specifies the determination of the size-weighted fine fraction (SWFF) and the size-weighted fine fraction of crystalline silica (SWFFCS) in bulk materials by calculation. The document also specifies the assumptions and preconditions to be fulfilled for this method to be valid.

The purpose of this document is to allow users to evaluate bulk materials regarding their size-weighted fine fraction and crystalline silica content.

NOTE

For preparation of the sample and determination of crystalline silica by X-ray Powder Diffractometry (XRD) or Fourier Transform Infrared Spectroscopy (FT-IR), see EN 17289?1 .

The calculation method is applicable only after experiments have shown that the results are accurate and consistently equal or higher than the results from sedimentation, as specified in EN 17289?3, for that particular bulk material.

A specific method for the evaluation of the SWFF for diatomaceous earth bulk materials is given in Annex A. Due to the internal porosity of diatomaceous earth, the general instructions given in this document are adapted in order to take into account the material’s effective density.

This document is applicable for crystalline silica containing bulk materials which have been fully investigated and validated for the evaluation of the size-weighted fine fraction and crystalline silica.

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
2 Normative references
3 Terms and definitions
11 4 Symbols and abbreviations
5 Assumptions
6 Determination of SWFF and SWFFCS by calculation
13 Annex A (normative)Determination of the size-weighted fine fraction (SWFF and SWFFCS) of Diatomaceous Earth (DE) by calculation
A.1 General
A.2 Categories of diatomaceous earth
A.3 Equipment and consumables
A.3.1 Particle size analyser
A.3.2 Mercury porosimeter
A.3.3 Mercury of high purity, hexadistilled.
A.3.4 Silica alumina standard, of about 0,5 ml/g.
A.3.5 Analytical balance, capable of weighing with an accuracy of 0,001g.
A.3.6 Gas pycnometer
A.3.7 Helium gas, of quality class as specified by the manual/manufacturer of the apparatus.
A.4 Method
A.4.1 Determination of the skeletal density
14 A.4.2 Determination of the intra-particle pore volume and intra-particle porosity
15 A.4.3 Calculation of the effective density
A.4.4 Particle size analysis
A.5 Determination of SWFF by calculation
16 A.6 Determination of SWFFCS
A.7 Example

Related products

BS EN 17289-2:2020
$102.76