The A483 Trunk Road (Newtown Bypass, Powys) (Temporary Prohibition of Vehicles and Cyclists) Order 2019 / Gorchymyn Cefnffordd yr A483 (Ffordd Osgoi’r Drenewydd, Powys) (Gwahardd Cerbydau a Beicwyr Dros Dro) 2019

Link:

The A483 Trunk Road (Newtown Bypass, Powys) (Temporary Prohibition of Vehicles and Cyclists) Order 2019 / Gorchymyn Cefnffordd yr A483 (Ffordd Osgoi’r Drenewydd, Powys) (Gwahardd Cerbydau a Beicwyr Dros Dro) 2019


Source: Legislation .gov.uk

BS ISO 4869-6:2019 Acoustics. Hearing protectors Determination of sound attenuation of active noise reduction earmuffs

Acoustics
Noise control (acoustic)
Testing conditions
Sound intensity
Protective clothing
Acoustic measurement
Ear muffs
Test equipment
Sound insulation
Acoustic testing
Safety devices
Ear protectors

Link: BS ISO 4869-6:2019 Acoustics. Hearing protectors Determination of sound attenuation of active noise reduction earmuffs
Source: BSI Standards

BS ISO 21814:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of aluminium nitride powders

Ceramics
Specimen preparation
Compression testing
Test equipment
Tensile strength
Special ceramics
Mechanical testing
Adhesive strength
Composite materials
Reinforced materials
Test specimens
Shear strength

Link: BS ISO 21814:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of aluminium nitride powders
Source: BSI Standards