Paper and board. Accelerated ageing - Exposure to atmospheric pollution (nitrogen dioxide) not-for-sale but higher concentrations may be

but higher concentrations may be determined by suitable dilution of the sample

use and maintenance of sanitary appliances within dwellings

nor to its characteristics (speeds

bituminous coal or hard coal

What is BS 6736 - Hand signalling in agricultural operations about

Paper and board. Accelerated ageing - Exposure to atmospheric pollution (nitrogen dioxide) not-for-sale but higher concentrations may be1 Scope This part of ISO 5630 specifies a method for accelerating the ageing of printing and writing papers through exposure to nitrogen dioxide gas and assessing the effect on mechanical and optical properties for the purpose of predicting stability to long term natural ageing that occurs due to exposure to polluted air. It is applicable to all cellulose based printing and writing papers, including coated papers and filled papers.