Licensed to About.com, Inc. Definition: Moleskine is a brand of notebook that comes in various formats, sizes, and papers. The covers are usually black leather (some special editions have silk, for instance, and diaries come in red) and there is an elastic band for keeping it closed.
3-3-4 Viscosity Stability of the aqueous solution The viscosity of PVA(Polyvinyl Alcohol) aqueous solution for fully hydrolyzed grades increases, according to storage time, and a gelation occurs.
VVS stands for âVery, Very Slightly Includedâ and is the next best clarity grade after Internally Flawless. Diamonds graded âVVSâ have inclusions that are so slight that even a trained gemologist has a hard time seeing them under a 10x loupe.