Paper, board and pulps. International calibration of testing apparatus. Nomination and acceptance of standardizing and authorized laboratories— 18 стр.
Paper, board and pulps. General requirements for the competence of laboratories authorized for the issue of optical reference transfer standards of level 3— 40 стр.
Paper, board and pulps. General requirements for the competence of laboratories authorized for the issue of optical reference transfer standards of level 3— 40 стр.