NP 1018-1989
SOLID FUELS Médium and High Rank coals Determination of the Gray-King índex

Standard No.

NP 1018-1989

Release Date

1989

Published By

PT-IPQ

Latest

NP 1018-1989

NP 1018-1989 history

• 1989 NP 1018-1989 SOLID FUELS Médium and High Rank coals Determination of the Gray-King índex