highly volatile matter content, as

highly volatile matter content, as received basis (%),
original specimen mass (mg), and
mass measured at TemperatureX(mg)

Hasil (Bahasa Indonesia) 1:

kandungan bahan sangat volatile, menerima dasar (%),spesimen asli massa (mg), danmassa diukur pada TemperatureX(mg)

Hasil (Bahasa Indonesia) 2:

kandungan bahan yang sangat volatile, sebagai dasar menerima (%),
spesimen massa asli (mg), dan
massa diukur pada TemperatureX (mg)