Fertilizers. Determination of the water-soluble potassium content.

Standard published on 28.2.2009

Fertilizers. Determination of total nitrogen in urea.

Standard published on 28.2.2009

Fertilizers. Spectrophotometric determination of biuret in urea.

Standard published on 28.2.2009

Flexible sheets for waterproofing. Plastic and rubber sheets for roof waterproofing. Method for exposure to bitumen.

Standard published on 31.10.2007

Fasteners. Hexagon washer head drilling screws with tapping screw thread.

Standard published on 19.7.2019

Tracked Changes. Fasteners. Hexagon washer head drilling screws with tapping screw thread.

Standard published on 24.2.2020

Cross recessed pan head drilling screws with tapping screw thread.

Standard published on 15.11.1999

Cross recessed countersunk head drilling screws with tapping screw thread.

Standard published on 15.11.1999

Chemicals used for treatment of water intended for human consumption. Sodium permanganate.

Standard published on 28.2.2013

Cross recessed raised countersunk head drilling screws with tapping screw thread.

Standard published on 15.11.1999