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IBI Certificate for SkyCarbon biochar

SkyCarbon Specifications

Source and composition

BIOCHAR COUNTRY OF ORIGINUnited States
FEEDSTOCK COUNTRY OF ORIGINUnited States
FEEDSTOCK TYPEUnprocessed Feedstock
FEEDSTOCK COMPOSITION DECLARATIONWalnut Shell – 100%
Moisture (at time of analysis)13%
Organic Carbon (Corg)67.8%
H:Corg0.44
Total Ash15.4%
Total N0.46%
pH9.79
Electrical Conductivity7.180 dS/m
Liming13.9% CaCO3

Particle size

< 0.5 mm10.3%
0.5 – 1 mm8.7%
1 – 2 mm18.5%
2 – 4 mm34.4%
4 – 8 mm25.2%
8 – 16 mm3.0%

Laboratory analysis results

Germination Inhibition AssayPASS
Polycyclic Aromatic Hydrocarbons (PAHs), total (sum of 16 US EPA PAHs)67.46 mg/kg – PASS
Polycyclic Aromatic Hydrocarbons (PAHs), B(a)P-TEEQ basis0 mg/kg – PASS
Dioxin/Furan (PCDD/Fs), WHO-TEQ basis0 mg/kg – PASS
Polychlorinated Biphenyls (PCBs), total (sum of 7 US EPA PCBs)0 mg/kg – PASS
Arsenic0.6 mg/kg – PASS
CadmiumND – PASS
Chromium1.4 mg/kg – PASS
CobaltND – PASS
Copper46.3 mg/kg – PASS
Lead0.3 mg/kg – PASS
MercuryND – PASS
MolybdenumND – PASS
Nickel1.6 mg/kg – PASS
SeleniumND – PASS
Zinc4.1 mg/kg – PASS
Boron89.6 mg/kg – DECLARATION
Chlorine5341 mg/kg – DECLARATION
SodiumND – DECLARATION
Iron341 mg/kg – DECLARATION
Manganese41 mg/kg – DECLARATION
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