Approved Methods
International standards exist to enable an interconnected world. By creating and adhering to standards, a global confidence is built. The international language of standards allows us to communicate our quality in a way any scientist can understand: with proven, reliable, and repeatable results. LECO is proud to take an active role in the development of and adherence to these international standards.
LECO instruments conform to the approved methodologies for many organizations.
Download the pdf file of these approved methods, or view the methods below:
AACC (American Association of Cereal Chemists)
| Method | Instruments | Constituents | Materials |
| 46-30 | FP928, FP828 | Protein | Cereal and Cereal Products |
AOAC International
| Method | Instruments | Constituents | Materials |
| 990.03 | FP928, FP828 | Crude Protein | Animal Feed |
| 992.15 | FP928, FP828 | Crude Protein | Meat, Meat Products, and Petfoods |
| 992.23 | FP928, FP828 | Crude Protein | Cereal Grain and Oil Seed Products |
| 993.13 | FP928, FP828 | Nitrogen | Fertilizer |
| 997.09 | FP928, FP828 | Nitrogen/Protein | Beer, Wort, and Brewing Grains (Total Protein by Calculation) |
| 2017.08 | S832 | Sulfur | Fertilizer |
ASBC (American Society of Brewing Chemists)
| Method | Instruments | Constituents | Materials |
| Combustion | FP928, FP828 | Protein | Adjunct Materials and Cereals |
| Combustion | FP928, FP828 | Protein | Barley |
| Combustion | FP928, FP828 | Protein | Beer |
| Combustion | FP928, FP828 | Protein | Brewers’ Grains |
| Combustion | FP928, FP828 | Protein | Malt |
| Combustion | FP928, FP828 | Protein | Wort |
ASTM (American Society for Testing & Materials)
LECO has been involved with ASTM International for over 30 years, with employees serving on committees ranging from cement, to nuclear fuel cycle, to additive manufacturing technologies, to mechanical testing , and more. As with our instruments, we work with ASTM to both push our analytical abilities forward with new methods and rework old methods to keep them up to date with current and cutting-edge technology.
Learn more about LECO’s commitment to ASTM International Standards.
» Carbon Black
| Method | Instruments | Constituents | Materials |
| D1619 | 832 Series | S | Carbon Black |
| D7633 | 832 Series | C | Carbon Black |
| D7662 | 832 Series | C | Carbon Black Feedstock Oils |
| D7679 | 832 Series | S | Carbon Black Feedstock Oils |
» Ceramics
| Method | Instruments | Constituents | Materials |
| C1494-01 | CS844/744, ONH836/ON736 | C, O, N | Silicon Nitride Powder |
» Energy
| Method | Instruments | Constituents | Materials |
| C1408 | CS844/744 | Carbon (Total) | Uranium Oxide Powders and Pellets |
| C1457 | RHEN602 | Hydrogen | Uranium Oxide Powders and Pellets |
| D240 | AC500 | Calorific Value | Hydrocarbon Fuels |
| D1552 | S832 | S | Oils and Petroleum Products |
| D1619 | S832 | S | Carbon Black |
| D1857 | AF700 | Ash Fusion | Coal and Coke Ash |
| D4239/Mth A | S832 | S | Coal and Coke |
| D4809 | AC500 | Calorific Value | Hydrocarbon Fuels |
| D5016 | S832 | S | Coal and Coke Ash |
| D5291 | CHN828 | C, H, N | Oil |
| D5373/Mth A | CHN828 | C, H, N | Coal |
| D5373/Mth B | SC/C832 | C | Coal and Coke |
| D5769 | Pegasus BT | Total Aromatics | Finished Gasoline |
| D5865 | AC500, AC600 | Calorific Value | Coal and Coke |
| D7348 | TGA701, TGA801 | Loss on Ignition (LOI) | Combustion Residues |
| D7582 | TGA701, TGA801 | Proximate (Moisture, Volatile, and Ash) | Coal and Coke |
| D7582, Sec 13.2.2 | TGM800 | Moisture | Coal and Coke |
| D8339 | TGA801 | Free Moisture, Gypsum, Calcium Sulfite Hemihydrate, Calcium Carbonate, Ash | Flue Gas Desulfurization Solids (FGD) |
» Hardness Testing
| Method | Instruments | Title |
| E10 | LCB3100 | Standard Test Method for Brinell Hardness of Metallic Materials |
| E18 | LR, LCR | Standard Test Methods for Rockwell Hardness of Metallic Materials |
| E92 | LM, LV, LMV, AMH43, | Standard Test Method for Knoop and Vickers Hardness of Materials |
| E140 | LM, LV, LR, LCR, LMV, LCB3100 | Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness |
» Metals
| Method | Instruments | Constituents | Materials |
| E1019 | CS844/744, | C, S, N, O | Steel, Iron*, Nickel/Cobalt Alloys |
| E1409 | ONH836/ON736 | O, N | Titanium and Titanium Alloys |
| E1447 | ONH836, RHEN602 | H | Titanium and Titanium Alloys |
| E1569 | ONH836/ON736 | O | Tantalum |
| E1587 | CS844/744, ONH836/ON736 | C, S, N, O | Refined Nickel |
| E1915 | CS844/744, SC832 Series | C, S | Metal Bearing Ores and Related Materials (i.e. tailings, waste rock) |
| E1941 | CS844/744 | C | Refractory and Reactive Metals |
| E2050 | CS844/744 | C | Mold Powders |
| E2575 | ONH836/ON736 | O | Copper |
| E2792 | RHEN602 | H | Aluminum and Aluminum Alloys |
| E2994 | GD-AES | Multiple | Titanium and Titanium Alloys |
* ISO 4935 – Sulfur Method; ISO 9556 – Carbon Method
» Microscopy
| Method | Instruments | Title |
| E1951 | BX, GX, SZ, SZX | Standard Guide for Calibrating Reticles and Light Microscope Magnifications |
AWS (American Welding Society)
| Method | Instruments | Constituents | Materials |
| A4.4M:2001 | RC Series (H2O) | Moisture | Welding Fluxes and Electrode Flux Coverings |
EPA (Environmental Protection Agency)
| Method | Instruments | Constituents | Materials |
| 525.2 | Pegasus BT | Organic Compounds | Drinking Water |
| 8270 | Pegasus BT | SVOC | Solids, Soil, and Water |
ISO (International Organization for Standardization)
» Energy
| Method | Instruments | Constituents | Materials |
| 1928 | AC500, AC600 | Calorific Value | Solid Mineral Fuels |
| 29541 | CHN828 | C, H, N | Solid Mineral Fuels |
| 16948 | CHN828 | C, H, N | Solid Biofuels |
| 18611-2 | FP928, FP828 | N | Catalyst |
| 18611-2 Annex B | FP928, FP828 | Total Nitrogen/Urea | Aqueous Urea Solution |
| 19579 | S832 | S | Solid Mineral Fuels |
| 22241-2 Annex B | FP928, FP828 | Total Nitrogen/Urea | Aqueous Urea Solution |
» Food
| Method | Instruments | Constituents | Materials |
| 14891 | FP928, FP828 | Total Nitrogen/Protein | Milk and Milk Products |
| 16634 | FP928, FP828 | Total Nitrogen/Protein | Food Products, Oilseed, and Animal Feeds |
» Hardness Testing
| Method | Instruments | Title |
| 4545-2 | LM, LMV | Metallic materials — Knoop hardness test — Part 2: Verification and calibration of testing machines |
| 6506-2 | LCB3100 | Metallic materials — Brinell hardness test — Part 2: Verification and calibration of testing machines |
| 6507-2 | LM, LMV, LV | Metallic materials — Vickers hardness test — Part 2: Verification and calibration of testing machines |
| 6508-2 | LR, LCR | Metallic materials — Rockwell hardness test — Part 2: Verification and calibration of |
» Metals
| Method | Instruments | Constituents | Materials |
| 3690 | DH603 | H | Ferritic Steel Arc Weld Metal |
| 4689-2/3 | S844/744 | S | Iron Ores |
| 4935 | S844/744 | S | Steel and Iron |
| 7524 | C844/744 | C | Nickel, Ferronickel, and Nickel Alloys |
| 7526 | S844/744 | S | Nickel, Ferronickel, and Nickel Alloys |
| 9556 | C844/744 | C | Steel and Iron |
| 9686 | CS844/744 | C, S | Direct Reduced Iron |
| 9891 | C844/744 | C | UO2 |
| 10694 | C844/744 | C | Soil |
| 10719 | C844/744 | C | Cast Irons |
| 10720 | ONH836/ON763 | N | Steel and Iron |
| 11873 | CS844/744 | C, S | Cobalt Metal Powders |
| 13902 | S844/744 | S | Steel and Iron |
| 15349-2 | C844/744 | C | Unalloyed Steel |
| 15350 | CS844/744 | C, S | Steel and Iron |
| 15351 | ONH836/ON736 | N | Steel and Iron |
| 17053 | ONH836/ON736 | O | Steel and Iron |
| 19272 | GDS | C, Si, Mn, P, S, Cr, Ni, Al, Ti, and Cu | Low Alloyed Steel |
| 21614 | C844/744 | C | UO2, (U, Gd)O2, and (U, Pu) O2 |
| 22963 | ONH836/ON736 | O | Titanium and Titanium Alloys |
» Soils
| Method | Instruments | Constituents | Materials |
| 10694 | SC832 | C | Soil |
| 13878 | FP928, FP828 | N | Soil |
| 15178 | S832, CNS/NS928 | S | Soil |
» Surface Chemical Analysis
| Method | Instruments | Constituents | Materials |
| 11505 | GDS | Multiple | General Procedures |
| 14707 | GDS | Multiple | Introduction to Use |
| 16962 | GDS | Zn/Al Coatings | Ferrous or Other Metal Base Materials |
| 25138 | GDS | Metal Oxide Films | Multiple Base Materials |
UOP (Universal Oil Products)
| Method | Instruments | Constituents | Materials |
| 703 | C844/744 | C | Catalysts |
| 864 | S832DR | S | Organic and Inorganic Materials |
| 990 | GCxGC FID | Molecular type classification | Petroleum Samples |
Did you know that LECO instruments conform to approved methodologies from the following organizations?
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