Explanatory notes
… than 60 % , and a burst index equal to or less than 2.5 kPa m2/g; or (e) containing 3 % ash or less, having a … or more and a burst index equal to or less than 2.5 kPa m2/g. (B) For paper or paperboard weighing more …Legal note
… than 60 % , and a burst index equal to or less than 2.5 kPa m2/g; or (e) containing 3 % ash or less, having a … or more and a burst index equal to or less than 2.5 kPa m2/g. (B) For paper or paperboard weighing more …