Standardized Product Definition and Product Testing Guidelines for ...
Standardized Product Definition and Product Testing Guidelines for ... Standardized Product Definition and Product Testing Guidelines for ...
1 2 Table 2 (continued): Test Category B Characteristics and Criteria Range of Maximum Requirement Allowed Thresholds mg/kg I- Polychlorinated Biphenyls 0.2 – 0.5 TEQ Arsenic 12 –100 Cadmium 1.4 – 39 Chromium 64 – 100 Cobalt 100 – 150 Copper 63 – 1500 Lead 70 – 500 Molybdenum 5 –-75 Mercury 1 – 17 Nickel 47 – 600 Selenium 1 – 100 Zinc 200 – 2800 Boron Chlorine Sodium Declaration Declaration Declaration mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt mg/kg dry wt Test Method Method following US Environmental Protection Agency (1996) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) US Composting Council and US Department of Agriculture (2001) 3 4 Standardized Product Definition and Product Testing Guidelines for Biochar That Is Used in Soil 14
1 2 3 4 5 6 7 8 9 10 11 12 4.3 Test Category C - Advanced Analysis and Soil Enhancement Properties Test Category C is optional for all biochar materials. Producers may report on none, one, some, or all of the properties contained in the Test Category C set of advanced analysis and soil enhancement properties, using the prescribed test methods. Biochar advanced analysis characteristics include the volatile matter content, porosity, and surface area of biochars. Biochar soil enhancement properties identify plant nutrients contained in the biochar. Biochars tested under Test Category C may report on any or all of the properties presented in Table 3 below: Table 3: Test Category C Characteristics and Criteria Test Category C: Biochar Advanced Analysis and Soil Enhancement Properties - Optional for All Biochars Requirement Criteria Unit Test Method Mineral N (ammonium and nitrate) Total Phosphorus & Potassium (P&K)* Declaration Declaration mg/kg % of total mass, dry basis Available P Declaration mg/kg Volatile Matter Total Surface Area External Surface Area Declaration % of total mass, dry basis 2M KCl extraction, followed by spectrophotometry (Rayment and Higginson 1992) Modified dry ashing followed by ICP (Enders and Lehmann 2012) 2% formic acid followed by spectrophotometry (modified from Rajan et al 1992, Nutrient Cycl in Agroecosystems 32:291-302 and AOAC 2005, as used by Wang et al 2011) ASTM D1762-84 Declaration m2/g ASTM D 6556-10 Standard Test Method for Carbon Black – Total and External Surface Area by Nitrogen Declaration m2/g Adsorption. See Appendix 2. * Total K is sufficiently equivalent to available K for the purpose of this characterization 13 14 15 16 17 18 5 Product Labeling and Documentation Product labeling and documentation will be an important part of any biochar certification program. In order to qualify for certification, biochar producers and manufacturers must share information about the feedstock and final biochar material. Biochar test results and feedstock Standardized Product Definition and Product Testing Guidelines for Biochar That Is Used in Soil 15
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- Page 9 and 10: 1 2 3 4 5 2 Terms and Definitions A
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2<br />
Table 2 (continued): Test Category B Characteristics <strong>and</strong> Criteria<br />
Range of Maximum<br />
Requirement<br />
Allowed Thresholds<br />
mg/kg I-<br />
Polychlorinated Biphenyls 0.2 – 0.5<br />
TEQ<br />
Arsenic 12 –100<br />
Cadmium 1.4 – 39<br />
Chromium 64 – 100<br />
Cobalt 100 – 150<br />
Copper 63 – 1500<br />
Lead 70 – 500<br />
Molybdenum 5 –-75<br />
Mercury 1 – 17<br />
Nickel 47 – 600<br />
Selenium 1 – 100<br />
Zinc 200 – 2800<br />
Boron<br />
Chlorine<br />
Sodium<br />
Declaration<br />
Declaration<br />
Declaration<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
mg/kg<br />
dry wt<br />
Test Method<br />
Method following US Environmental Protection<br />
Agency (1996)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
US Composting Council <strong>and</strong> US Department of<br />
Agriculture (2001)<br />
3<br />
4<br />
<strong>St<strong>and</strong>ardized</strong> <strong>Product</strong> <strong>Definition</strong> <strong>and</strong> <strong>Product</strong> <strong>Testing</strong> <strong>Guidelines</strong> <strong>for</strong> Biochar That Is Used in Soil 14
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