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Physical & Chemical properties

Particle size distribution (Granulometry)

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Description of key information

A study was performed according to BS ISO 13320-1:1999 and CIPAC MT 187; and equivalent to OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions).

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A study performed according to BS ISO 13320-1:1999 and CIPAC MT 187; and equivalent to OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) gave a mean d50 of sodium pentaborate of 170.849 μm. The d10 of sodium pentaborate was 52.462 μm and the d90 was 424.293 μm. The coefficient of variation for d50 was less than 3 %; d10 and d90 were less than 5 %. Thus repeatability of the characteristic particles in the size distribution was within the acceptable limits as per the BS ISO 13320-1 test standard.