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Laboratory Analysis

Independent certification by three accredited Australian laboratories — plus Safety Data Sheet

★ KEY REGULATORY RESULT: Respirable Quartz Content <0.5% — Below Limit of Reporting (Simtars Analytical Services, Report OL20396F1, December 2025). This product meets and substantially exceeds Australia's standard for crystalline silica content in diatomaceous earth.

Safety Data Sheet — Non-Calcined Biogenic Amorphous Silica

SDS Version 1.0 · March 2026 · GHS Compliant · Safe Work Australia
NOT CLASSIFIED HAZARDOUS
GHSCompliant — Safe Work Australia
NONEHazard Pictograms Required
13 11 26Poisons Info Centre (24hr Emergency)
Classification: This product does NOT meet the criteria for classification as a hazardous chemical under the Australian Model Work Health and Safety Regulations, based on certified independent laboratory testing. Respirable quartz <0.5% (below limit of reporting). Cristobalite: Not detected. Primary component is amorphous silica (80.2%) — IARC Group 3 (not classifiable as carcinogen), compared to crystalline silica which is IARC Group 1.
📄 Download Safety Data Sheet (PDF) — Version 1.0 March 2026

Simtars Analytical Services — Respirable Quartz Analysis

Report No. OL20396F1 · December 22, 2025 · Safety in Mines Testing and Research Station, Redbank QLD
✓ CERTIFIED COMPLIANT
<0.5%Respirable Quartz — Below LOR
0.9%Quartz in Respirable Dust Fraction
PASSMeets Australian Standard
ParameterResultLimit of ReportingStatus
Quartz in Respirable Dust Fraction (%)0.90.5Detected — low level
Respirable Quartz Content (%)<0.50.5✓ Below Limit of Reporting
Why this matters: The respirable quartz content is the controlling regulatory figure under Australian WHS law. The respirable fraction contains less crystalline silica than the minimum detectable limit. This product does NOT trigger mandatory crystalline silica control plan requirements.
📄 Download Simtars Report (PDF)

Agon Environmental Pty Ltd — Crystalline Silica XRD Report

Report No. JH25.0028-109 · October 31, 2025 · XRD Adelaide Laboratory, Fullarton SA
✓ VERIFIED
80.2%Amorphous + Opaline Silica
1.8%Quartz (Bulk XRD Total)
NDCristobalite — Not Detected
MineralChemical FormulaContent (wt%)
Amorphous + Opaline Silica (diatom remains)SiO₂·nH₂O80.2%
Kaolinite (clay mineral)Al₂Si₂O₅(OH)₄13%
Smectite (clay mineral)Silicate mineral5%
Quartz (crystalline silica)SiO₂1.8%
Cristobalite (crystalline silica)SiO₂Not Detected
📄 Download Agon Environmental XRD Report (PDF)

HRL Technology Group — Laser Particle Size Distribution

Report No. 251493 · December 19, 2025 · 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
ParameterResultNotes
D10 Value4.34 µm10% of particles finer than this
D50 Value (Median)156 µmMedian particle diameter
D90 Value511 µm90% of particles finer than this
Specific Surface Area494.4 m²/kgHigh surface area — key for absorption applications
D[3,2] Surface Mean12.1 µmSurface-weighted mean
D[4,3] Volume Mean205 µmVolume-weighted mean
InstrumentMalvern Mastersizer 3000+ UltraRange: 0.01–3,500 µm
Nanoparticle Confirmation: 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.
📄 Download HRL Technology Particle Size Report (PDF)

Summary of All Documents

DocumentIssuerKey ResultStatus
Safety Data Sheet v1.0
March 2026
BSiO2 Pty Ltd (GHS Compliant)NOT classified hazardous. No signal word. No pictograms.✓ CURRENT
Respirable Quartz Report OL20396F1
December 2025
Simtars Analytical ServicesRespirable Quartz: <0.5% (Below LOR)✓ COMPLIANT
XRD Crystalline Silica JH25.0028-109
October 2025
Agon Environmental Pty LtdAmorphous Silica: 80.2%. Cristobalite: Not Detected✓ VERIFIED
Particle Size Distribution 251493
December 2025
HRL Technology Group Pty LtdD50: 156 µm. Surface Area: 494.4 m²/kg✓ VERIFIED
📄 Safety Data Sheet 📄 Simtars Report 📄 Agon XRD Report 📄 HRL Particle Size

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Full SDS, laboratory reports, and product specification sheets are available on request.