расчет gcv угля по формуле adb to arb
to convert gcv arb to gcv adb in coal. Aug 01, 2011 0183 32 Which one is the best basis to use for coal calories? ADB, ARB, or NAR? Some countries use ADB basis to measure coal calories, China use NAR, and the other use GAR, Approximate GCV to NCV Conversion Values ADB GAR NAR 7000 6500 6200 6300 5800 5500 5800 5000 4700 5500 4700 4400