ASTM D7582-24 PDF
Name in English:
St ASTM D7582-24
Name in Russian:
Ст ASTM D7582-24
Original standard ASTM D7582-24 in PDF full version. Additional info + preview on request
Full title and description
Standard Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis — instrumentally determines moisture, volatile matter, ash, and fixed carbon for coal and coke samples using a macro thermogravimetric analyzer (macro‑TGA).
Abstract
This standard specifies macro‑thermogravimetric procedures to perform proximate analysis (moisture, volatile matter, ash, and fixed carbon) on coal and coke. It provides guidance on sample size, heating profile, and interpretation of mass‑loss stages for routine laboratory and interlaboratory use. The procedure is intended as an instrumental alternative to traditional proximate methods and is used for production control, research, and regulatory reporting.
General information
- Status: Active standard (current edition D7582‑24).
- Publication date: 2024 (issued as D7582‑24; ASTM record updated April 2024).
- Publisher: ASTM International.
- ICS / categories: 73.040 (Coals).
- Edition / version: D7582‑24 (2024 revision).
- Number of pages: 9 pages.
Scope
This standard covers proximate analysis of coal and coke by macro thermogravimetric analysis (macro‑TGA). It defines the test purpose, required instrumentation approach, recommended sample sizes and preparation, and the calculations used to report moisture, volatile matter, ash, and fixed carbon on as‑received and dry bases. It is intended for routine laboratory testing and for applications where rapid instrumental proximate data are required.
Key topics and requirements
- Determination of moisture, volatile matter, ash, and fixed carbon by mass‑loss steps in a macro‑TGA.
- Recommended sample mass and handling (minimum acceptable sample sizes and typical recommendations for representative sampling).
- Heating rates, temperature setpoints, and atmosphere control to distinguish proximate fractions.
- Calculation procedures to report as‑received and dry‑basis results and use of Practice D3180 for basis conversions.
- Precision and bias considerations established by interlaboratory study data (precision statement and reproducibility guidance).
Typical use and users
Routine and research laboratories in the coal, coke, power generation, steelmaking, and environmental testing sectors; quality control and process laboratories needing rapid proximate results; instrument manufacturers and calibration laboratories; and laboratories participating in interlaboratory comparisons. The method is used for production control, specification verification, and comparative research.
Related standards
Commonly referenced companion methods and practices include ASTM D3173 (moisture by oven drying), D3174 (ash in coal), D3175 (volatile matter), Practice D3180 (basis for reporting analytical results), and Test Method D3302 (air‑dry moisture). Interlaboratory precision work for D7582 has been reported in RR:D05‑1038.
Keywords
proximate analysis, macro thermogravimetric analysis, macro‑TGA, coal, coke, moisture, volatile matter, ash, fixed carbon, proximate, D7582, ASTM.
FAQ
Q: What is this standard?
A: ASTM D7582‑24 is the ASTM test method that defines macro‑thermogravimetric procedures for proximate analysis of coal and coke (moisture, volatile matter, ash, fixed carbon).
Q: What does it cover?
A: It covers sample handling and preparation, macro‑TGA operating conditions (temperatures, atmospheres, heating rates), mass‑loss interpretation, calculation methods for reporting proximate results, and guidance on precision and reporting basis conversions.
Q: Who typically uses it?
A: Coal and coke testing laboratories, power utilities, coke producers, steel industry QC labs, research institutions, instrument manufacturers, and accreditation/interlaboratory programs use this method.
Q: Is it current or superseded?
A: Current — the document is published as D7582‑24 (2024) and listed as the active edition.
Q: Is it part of a series?
A: It is part of ASTM's D05 committee suite of coal and coke test methods and is commonly used alongside related proximate and ultimate analysis standards (for example, D3173, D3174, D3175) and related practices such as D3180 and D3302.
Q: What are the key keywords?
A: proximate analysis; macro‑TGA; moisture; volatile matter; ash; fixed carbon; coal; coke; D7582‑24.