Guidelines for Specifications of Biochars for Use in Soils FINAL ...

123456789101112131415161718192021222324252627282930Table of ContentsDisclaimer 2Foreword 2Table of Contents 51 Scope 62 Terms and Definitions 73 Biomass Feedstock Material and Biochar Production 93.1 General Feedstock Material Requirements 93.2 General Biochar Production and Material Handling Recommendations 94 Biochar Material Test Categories and Characteristics 104.1 Test Category A – Basic Utility Properties 124.2 Test Categories B and C – Basic and Supplemental Toxin Reporting 144.3 Test Category D - Advanced Analysis and Soil Enhancement Properties 165 Product Labeling Instructions 175.1 Labeling Requirements 175.2 Product Information Requirements 175.3 Special Instructions 176 Conformity and Record Keeping 176.1 Timing and Frequency of Testing 186.2 Laboratory Standards 186.3 Chain of Custody 187 References 19Appendix 1 – Sample Biochar Label 22Appendix 2 – Recommended General Sample Analysis Procedures and Protocols forSpecific Tests 24Appendix 3 – Regulatory Toxin Ranges 27Appendix 4 – Determining a “Material Change” in Feedstock 29Appendix 5 – The Use of H:C org to Indicate C Stability 31Appendix 6 – Glossary 33International Biochar Initiative – Guidelines for Specifications of Biochars for Use in Soils 5