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

AOCS (American Oil Chemists' Society)

Method Instruments Constituents Materials
BA4E-93 FP928, FP828 Protein Oil Seeds
BA4F-00 FP928, FP828 Protein Soybean Meal

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 Sulfur Carbon Black
D7633 832 Series Carbon Carbon Black
D7662 832 Series Carbon Carbon Black Feedstock Oils
D7679 832 Series Sulfur Carbon Black Feedstock Oils

» Cement

Method Instruments Constituents Materials
C114
Sec 18.1
TGA801 Loss on Ignition (LOI) Portland Cement
C114
Appendix X2.2.2
TGA801 Split Loss on Ignition, Carbon Dioxide Hydraulic Cement
C114
Appendix X2.2.5
744/844 Total Carbon, Carbon Dioxide Hydraulic Cement

» Ceramics

Method Instruments Constituents Materials
C1494-01 CS844/744,
ONH836/ON736
Carbon, Oxygen, Nitrogen 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 Sulfur Oils and Petroleum Products
D1619 S832 Sulfur Carbon Black
D1857 AF700 Ash Fusion Coal and Coke Ash
D4239/Mth A S832 Sulfur Coal and Coke
D4809 AC500 Calorific Value Hydrocarbon Fuels
D5016 S832 Sulfur Coal and Coke Ash
D5291 CHN828 Carbon, Hydrogen, Nitrogen Oil
D5373/Mth A CHN828 Carbon, Hydrogen, Nitrogen Coal
D5373/Mth B SC/C832 Carbon 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,
AMH55, Test Blocks

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,
ONH836/ON736

Carbon, Sulfur, Nitrogen, Oxygen Steel, Iron*, Nickel/Cobalt Alloys
E1409 ONH836/ON736 Oxygen, Nitrogen Titanium and Titanium Alloys
E1447 ONH836, RHEN602 Hydrogen Titanium and Titanium Alloys
E1569 ONH836/ON736 Oxygen Tantalum
E1587 CS844/744, ONH836/ON736 Carbon, Sulfur, Nitrogen, Oxygen Refined Nickel
E1915 CS844/744, SC832 Series Carbon, Sulfur Metal Bearing Ores and Related Materials (i.e. tailings, waste rock)
E1941 CS844/744 Carbon Refractory and Reactive Metals
E2050 CS844/744 Carbon Mold Powders
E2575 ONH836/ON736 Oxygen Copper
E2792 RHEN602 Hydrogen 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 Semi-volatile Organic Compounds (SVOCs) Solids, Soil, and Water

ISO (International Organization for Standardization)

» Energy

Method Instruments Constituents Materials
1928 AC500, AC600 Calorific Value Solid Mineral Fuels
29541 CHN828 Carbon, Hydrogen, Nitrogen Solid Mineral Fuels
16948 CHN828 Carbon, Hydrogen, Nitrogen Solid Biofuels
18611-2 FP928, FP828 Nitrogen Catalyst
18611-2
Annex B
FP928, FP828 Total Nitrogen, Urea Aqueous Urea Solution
19579 S832 Sulfur 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 testing machines

» Metals

Method Instruments Constituents Materials
3690 DH603 Hydrogen Ferritic Steel Arc Weld Metal
4689-2/3 S844/744 Sulfur Iron Ores
4935 S844/744 Sulfur Steel and Iron
7524 C844/744  Carbon Nickel, Ferronickel, and Nickel Alloys
7526 S844/744  Sulfur Nickel, Ferronickel, and Nickel Alloys
9556 C844/744 Carbon Steel and Iron
9686 CS844/744 Carbon, Sulfur Direct Reduced Iron
9891 C844/744 Carbon UO2
10694 C844/744  Carbon Soil
10719 C844/744 Carbon Cast Irons
10720 ONH836/ON763 Nitrogen Steel and Iron
11873 CS844/744  Carbon, Sulfur Cobalt Metal Powders
13902 S844/744 Sulfur Steel and Iron
15349-2 C844/744 Carbon Unalloyed Steel
15350 CS844/744 Carbon, Sulfur Steel and Iron
15351 ONH836/ON736 Nitrogen Steel and Iron
17053 ONH836/ON736 Oxygen Steel and Iron
19272 GDS Carbon, Silicon, Manganese, Phosphorus, Sulfur, Chromium, Nickel, Aluminum, Titanium, and Copper Low Alloyed Steel
21614 C844/744 Carbon Uranium Dioxide [UO2], Uranium-Gadolinium Mixed Oxides [(U, Gd)O2], and Uranium-Plutonium Mixed Oxides [(U, Pu)O2]
22963 ONH836/ON736 Oxygen Titanium and Titanium Alloys

» Soils

Method Instruments Constituents Materials
10694 SC832 Carbon Soil
13878 FP928, FP828 Nitrogen Soil
15178 S832, CNS/NS928 Sulfur Soil

» Surface Chemical Analysis

Method Instruments Constituents Materials
11505 GDS Multiple General Procedures
14707 GDS Multiple Introduction to Use
16962 GDS Zinc and Aluminum Coatings Ferrous or Other Metal Base Materials
25138 GDS Metal Oxide Films Multiple Base Materials

Ontario Ministry of the Environment

Method Instruments Constituents Materials
E3487 QuadJet™ SD-ECD Organochlorine Pesticides (OCs),
Polychlorinated Biphenyls (PCBs)
Soil, Sediment

UOP (Universal Oil Products)

Method Instruments Constituents Materials
703 C844/744 Carbon Catalysts
864 S832DR Sulfur 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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