Reprint CI, 01/2013:
Standard sand as a standard for
worldwide monitoring of cement
quality
Reprint CI, 01/2013:
Standard sand as a standard for
worldwide monitoring of cement
quality
Reprint ZKG, 05/2005:
Sand from Beckum is a worldwide proprietary article –
50 years NORMENSAND GmbH
Reprint CI, 02/2007:
Cen standard sand – a proven quality control product
50th anniversary flyer
