Testing of bituminous materials for road building and related purposes; determination of the softening point WilhelmiEssais des produits bitumineux pour les revêtements routiers et autres applications s'y rapportant; détermination du point de ramollissem
DIN 1996-15:1975 history
1975DIN 1996-15:1975-12 Testing of Bituminous Materials for Road Building and Related Purposes; Determination of Softening Point in accordance with Wilhelmi
1975DIN 1996-15:1975 Testing of Bituminous Materials for Road Building and Related Purposes; Determination of Softening Point in accordance with Wilhelmi