Standard based on : YS/T 1752-2025
Sample Requirements
1. There are no specific restrictions on particle size. Samples can be tested directly upon arrival and must be stored in a sealed container.
2. The sample needs to be wrapped with lens paper.
Test Procedure
Add 10 ml of distilled water to the oxygen bomb . Weigh approximately 0.2 g of sample, place it in lens paper with a known mass and calorific value, wrap it, and then place it in a quartz crucible. Install the ignition wire or ignition cotton thread, and close the oxygen bomb lid. Fill with oxygen and place the oxygen bomb in the calorimeter. Input the sample mass and the mass of the lens paper; the instrument will automatically complete the calorific value determination and result calculation.
Test Conditions
Oxygen pressure : 2.0 MPa
Oxygenation time : ≥15s
Ambient temperature : 23℃
Test Results
Manual numbering | Sample mass (g) | Heat output of the bomb cartridge (J/g) | Mean (J/g) | Range (J/g) | Repeatability limit (J/g) |
Boron compound raw material 1 | 0.2016 | 16645.48 | 16761.16 | 231.35 | 245.66 |
Boron compound raw material 1 | 0.1925 | 16876.83 | |||
Boron compound raw material 2 | 0.2042 | 13523.62 | 13411.61 | 224.02 | 245.66 |
Boron compound raw material 2 | 0.2050 | 132 9 9.60 | |||
Al / GF 5wt% | 0.2009 | 28629.29 | 28634.52 | 10.46 | 280.05 |
Al / GF 5wt% | 0.2018 | 28639.75 | |||
Al/PTFE 5wt% | 0.2013 | 28534.70 | 28565.98 | 62.55 | 280.05 |
Al/PTFE 5wt% | 0.2041 | 28597.25 | |||
Al/FGOTS 5wt% | 0.2026 | 28165.43 | 28207.86 | 84.85 | 280.05 |
Al/FGOTS 5wt% | 0.2064 | 28250.28 |