Determination of pH value. Reference buffer solutions for the calibration of pH measuring equipment
Edition 2019-07-16

Belt conveyors - Continuous conveyors - Cleaning system - Method to obtain reference value to evaluate conveyor belt cleaning system performance
Edition 2014-03-14

Acoustics - Preferred reference values for acoustical and vibratory levels (ISO 1683:2015)
Edition 2016-01-27

Road vehicles. Test of vehicle air braking systems with a permissible mass of over 3,5 t. Acquisition and use of reference values using a roller brake tester
Edition 2008-04-30

Methods of testing soils for engineering purposes Soil compaction and density tests - Compaction control test - Dry density ratio and moisture ratio using statistical selection of reference values
Edition 2006

Road vehicles - Test of vehicle air braking systems with a permissible mass of over 3,5 t - Acquisition and use of reference values using a roller brake tester
Edition 2008-03

Non-destructive testing - Industrial radiographic films - Part 2: Control of film processing by means of reference values (ISO 11699-2:2018)
Edition 2019-05-22

Acoustics - Preferred reference values for acoustical and vibratory levels (ISO 1683:2015); German version EN ISO 1683:2015
Edition 2015-09

pH measurement. Specification for reference value standard solutions and operational reference standard solutions
Edition 1984-12-31

Determination of pH value - Reference buffer solutions for the calibration of pH measuring equipment
Edition 2019-07