Laboratory Analysis — Certified Results

★ KEY REGULATORY RESULT: Respirable Quartz Content <0.5% — Below Limit of Reporting. This product meets and substantially exceeds Australia's new standard for crystalline silica content in diatomaceous earth.

Respirable Quartz Analysis

Safety in Mines Testing and Research Station

✓ CERTIFIED COMPLIANT

<0.5%Respirable Quartz — Below LOR

PASSMeets <1% Australian Standard

Parameter	Result	Limit of Reporting	Status
Respirable Quartz Content (%)	<0.5	0.5	✓ Below Limit of Reporting

Why this matters: The respirable quartz content is the controlling regulatory figure under Australian WHS law. The respirable fraction (particles small enough to reach deep lung tissue) contains less crystalline silica than the minimum detectable limit. This product does NOT trigger mandatory crystalline silica control plan requirements.

Crystalline Silica XRD Report

✓ VERIFIED

80.2%Amorphous + Opaline Silica

NDCristobalite — Not Detected

Mineral	Chemical Formula	Content (wt%)
Amorphous + Opaline Silica (diatom remains)	SiO₂·nH₂O	80.2%
Kaolinite (clay mineral)	Al₂Si₂O₅(OH)₄	13%
Smectite (clay mineral)	Silicate mineral	5%
Cristobalite (crystalline silica)	SiO₂	Not Detected

Laser Particle Size Distribution

Malvern Mastersizer 3000+ Ultra, Mulgrave VIC

✓ VERIFIED

4.34 µmD10 — Finest 10% of particles

156 µmD50 — Median Particle Size

511 µmD90 — Coarsest 10% of particles

Parameter	Result	Notes
D10 Value	4.34 µm	10% of particles finer than this
D50 Value (Median)	156 µm	Median particle diameter
D90 Value	511 µm	90% of particles finer than this
Specific Surface Area	494.4 m²/kg	High surface area — key for absorbency and flow applications
D[3,2] Surface Mean	12.1 µm	Surface-weighted mean
D[4,3] Volume Mean	205 µm	Volume-weighted mean
Instrument	Malvern Mastersizer 3000+ Ultra	Range: 0.01–3,500 µm

Nanoparticle Confirmation: The D10 of 4.34 µm confirms BSiO₂ is NOT a nanoparticle product. The nanoparticle threshold is 100 nm (0.1 µm). BSiO₂'s smallest particles are approximately 43 times larger than this threshold.

Safety Data Sheet — BSiO₂ Non-Calcined Biogenic Amorphous Silica

Version 1.0 · March 2026 · GHS Compliant · Safe Work Australia · Emergency: 13 11 26

✓ GHS COMPLIANT

NOTClassified as Hazardous

NoneSignal Word Required

SafeUnder Australian WHS Regulations

Classification: NOT CLASSIFIED AS HAZARDOUS under Australian Work Health and Safety Regulations. Not classified as Dangerous Goods under the Australian Dangerous Goods Code. Based on certified laboratory results (Simtars Report OL20396F1, December 2025).

📄 Download Safety Data Sheet v1.0 (PDF)

Summary of All Laboratory Results

Laboratory	Test Conducted	Key Result	Status
Simtars Analytical Services	Respirable Quartz Analysis	Respirable Quartz: <0.5% (Below LOR)	✓ COMPLIANT
Agon Environmental Pty Ltd	XRD Crystalline Silica Analysis	Amorphous Silica: 80.2% · Cristobalite: Not Detected	✓ VERIFIED
HRL Technology Group Pty Ltd	Laser Particle Size Distribution	D50: 156 µm · Surface Area: 494.4 m²/kg	✓ VERIFIED
BSiO₂ Pty Ltd SDS Version 1.0 — March 2026	Safety Data Sheet (GHS)	NOT classified as hazardous · Not Dangerous Goods	✓ GHS COMPLIANT

Laboratory Analysis & Safety

Respirable Quartz Analysis

Crystalline Silica XRD Report

Laser Particle Size Distribution

Safety Data Sheet — BSiO₂ Non-Calcined Biogenic Amorphous Silica

Summary of All Laboratory Results

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