This unification describes the method that allows a representative sample to be obtained from a batch of paper or cardboard. When a certain test method requires a particular sampling procedure, this is described in the text of the method itself. 2 Sampling is not valid, unless agreed between the parties, if less than half of the batch is present at the time of sampling.
UNI 6436-1969 history
1969UNI 6436-1969 Tests on paper and cardboard. sampling