摘要
研究了烟煤粘结指数(G)样品在不同保存方式下(常温、冷藏和除氧)保存1a的稳定性及其原因.研究表明,在常温下保存1a不同量值的G煤样,其G值均有明显变化.在冷藏2~4℃下保存1a,不同G值煤样的稳定性均比常温下好.若除氧保存1a,各种煤样的G值可认为没有变化.开封后反复使用的样品的G值稳定性(冷藏保存)比在相同保存条件下的无反复使用的样品略差.
Studied the stability of caking index (G) sample for bituminous coal under different preservation meansusual storage ( US), cool storage ( CS, 2 - 4 ℃ ) and deoxidization storage (DS) during one year. The conclusions are as follows: under US, G value varies obviously after one year. Under CS, G value is more steady than under US after one year. Under DS, G value is most steady. In addition, the stability of unsealed G sample is slightly worse than of sealed sample.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2006年第5期659-661,共3页
Journal of China Coal Society
关键词
粘结指数
稳定性
标准物质
caking index
stability
certified reference material