Australian start-up Hoopsy has created a recyclable pregnancy test that is 99 per cent made out of paper, aiming to stop millions of single-use plastic versions ending up in landfill each year.

The Cooper Wessex Aggregate Abrasion machine CRT-AAM determines the Aggregate Abrasion Value (AAV) by measuring the resistance of aggregate to surface wear by abrasion. Inadequate abrasion ...