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 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,
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

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
18611-2 FP928, FP828 N Catalyst
19579 S832 S Solid Mineral Fuels
29541 CHN828 C, H, N Solid Mineral Fuels

» 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 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?

Click on the images to learn more about these organizations. (Please note that you will be leaving LECO's website.)

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