Soil improvers and growing media - Determination of organic matter content and ash.

Norma vydaná dňa 1.10.2025

Letter symbols for physical quantities; symbols for general use.

Norma vydaná dňa 1.3.1994

Letter symbols for physical quantities; symbols to be used in meteorology and geophysics.

Norma vydaná dňa 1.9.1989

Letter symbols for physical quantities; symbols to be used for fluid mechanics.

Norma vydaná dňa 1.9.1989

Letter symbols for physical quantities; symbols for use in the field of static converters using semiconductor devices.

Norma vydaná dňa 1.2.1994

Letter symbols for physical quantities - Part 9: Symbols for equivalent circuits of piezoelectric crystals.

Norma vydaná dňa 1.1.2003

Clay roofing tiles and fittings - Product definitions and specifications.
(Pálené střešní tašky a tvarovky - Definice a specifikace výrobku.)

Norma vydaná dňa 1.8.2013

Soil improvers and growing media - Sample preparation - Part 1: Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory bulk density.

Norma vydaná dňa 1.10.2025

Soil improvers and growing media - Sample preparation - Part 2: Sample preparation for microbiological examination.

Norma vydaná dňa 1.1.2026

Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density.
(Pomocné půdní látky a substráty - Příprava vzorků pro chemické a fyzikální zkoušky, stanovení obsahu sušiny, vlhkosti a objemové hmotnosti laboratorně zhutnělého vzorku.)

Norma vydaná dňa 1.1.2008