Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Average values and standard deviations of: (a) static contact angle (θ°); (b) relative capillary index (CIrel); (c) ratio of water vapour permeability (δ t/δ nt) of specimens treated with Silres BS 290, WNC and ANC and untreated Apuan marble and Ajarte specimens.
