IS 1350 : Part 4 : Sec 2 : 2025 Coal and Coke - Methods of Test - Part 4 Ultimate Analysis - Section 2 Determination of Nitrogen
1 SCOPE
This standard (Part 4/Sec 2) prescribes the methods for determination of nitrogen content in coal.
NOTE - The method prescribed in 6.2 is also applicable to brown coals, lignites and coke except for the fact that a longer period of digestion (see 6.2.4) is required in the case of high rank coal, anthracite and coke.
2 REFERENCES
The standards given below contain provisions, which through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibilities of applying the most recent edition of these standards.
| IS No. | Title |
| IS 266 : 2024 | Sulphuric acid - Specification (fourth revision) |
| IS 436 (Part 1/Sec 1) : 2024 | Methods for sampling of coal and coke: Part 1 Sampling of coal, Section 1 Manual sampling (second revision) |
| IS 1070 : 2023 | Reagent grade water - Specification (fourth revision) |
| IS 16143 | Hard coal and coke - Mechanical sampling: |
| (Part 5) : 2021/ISO 13909-5 : 2016 | Coke - Sampling from moving streams (first revision) |
| (Part 6) : 2021/ISO 13909-6 : 2016 | Coke - Preparation of test samples (first revision) |