STB PDF

Plywood Classification by surface appearance Part 4: Parameters of ability for finishing, guideline. Original standard UNE-CEN TS 635-4 EX-2008 in PDF full version. Additional info + preview on request

Document status: Active

Paints and varnishes - Coating materials and coating systems for exterior wood - Part 8: Determination of the adhesion on wood after water exposure by a double-X-cut test. Original standard UNE-CEN TS 927-8-2020 in PDF full version. Additional info + preview on request

Document status: Active

Electromagnetic Compatibility (EMC) Standardization for Product Committees concerned with apparatus. Original standard UNE-CLC Guide 24-2009 in PDF full version. Additional info + preview on request

Document status: Replaced by STB UNE-CLC Guide 34-2024

Functional safety - Safety instrumented systems for the process industry sector - Part 4- Explanation and rationale for changes in IEC 61511-1 from Edition 1 to Edition 2. Original standard UNE-CLC IEC TR 61511-4-2020 in PDF full version. Additional info + preview on request

Document status: Active

Corrigendum - Explosive atmospheres - Part 39: Intrinsically safe systems with electronically controlled spark duration limitation. Original standard UNE-CLC IEC TS 60079-39-2019 AC-2020 in PDF full version. Additional info + preview on request

Document status: Active

Definitions related to material efficiency. Original standard UNE-CLC TR 45550-2020 in PDF full version. Additional info + preview on request

Document status: Active