... leadtim ESD&dust-freenotebookBasic weight:72gsm, Caliper:5.0mil A3,A4,A5,A6,B5 available.esd Notebooks are the only notebooks ... ; chemical-resistant cover, indexed for easy data retrieval. Size; A3,A4, A5 are available. Sewn-bound and spiral package. 20,32 ... %Surface resistivity: 3.5*107-109ohem ESD notebook/cleanroom notebook-A4