Πεπιεσμένο χαρτόνι και πεπιεσμένο χαρτί για ηλεκτρικούς σκοπούς - Μέρος 3: Προδιαγραφές για μεμονωμένα υλικά - Φύλλο 2: Απαιτήσεις για πεπιεσμένο χαρτί, τύποι P.2.1, P.4.1, P.4.2, P.4.3 και P.6.1

This part of IEC 60641 gives the requirements for presspaper for electrical purposes comprised of 100 % sulphate wood pulp, 100 % cotton or a mixture of sulphate wood pulp and cotton. The main changes with respect to the previous edition are: type P.6 has been replaced with a new type, but the designation has been kept, type P.7 has been deleted, the thickness relation of the properties has been simplified and the values were adjusted to today's needs of users.