Description

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To grade the bitumen based on viscosity BIS revised IS*******2specifications  (Viscosity at *0°C)  and as such there are four grades VG**0, VG**0, VG**0 & VG**0. A few qualification tests like specificgravity, water content, ductility, loss on heating &Farass breaking point were removed from IS:******2 as these tests do not have any relationship with the performance of the product.