Some examples of ČSN EN standards include those related to energy management systems, environmental management systems, and medical devices. These standards provide guidance for businesses and organizations to ensure that their products and services meet certain quality and safety requirements and are compatible with international standards.

CSN EN Standard Norms and Instruments for UV/Vis Spectroscopy
UV/Vis Spectrophotometric Method for Ensuring Quality, Safety, and Environmental Protection
ČSN EN is a set of standards created by the Czech Technical Standardization Institute (ČSN) in collaboration with the European Committee for Standardization (CEN) and the International Organization for Standardization (ISO).
Like other standard norms, ČSN EN standards cover a wide range of industries and provide guidelines for ensuring quality, safety, and environmental protection. Adherence to ČSN EN standards can benefit organizations by improving their efficiency, reducing costs, increasing customer confidence, and enhancing their reputation.

CSN EN 10184. Phosphorus in Non-alloyed Steels and Irons
This standard specifies the methods for the determination of phosphorus in non-alloyed steel and irons by the molybdenum blue spectrophotometric method.
CSN EN 10200. Boron in Steels
In the field of chemical analysis of ferrous materials, this standard outlines the spectrophotometric techniques used for determining boron content in steels.
CSN EN 10178. Niobium in Steels
This standard specifies a spectrophotometric method for the determination of niobium in steels. The method is applicable to all grades of steels with niobium contents up to 1,3 % (by mass).
CSN EN 12014-3. Nitrate and Nitrite in Meat Products
This standard specifies the methods for spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite.
CSN EN 12396-1. Dithiocarbamate and Thiuram Disulfide Residues in Non- Fatty Foods
This standard specifies the methods for spectrometric determination of dithiocarbamate and thiuram disulfide residues in non-fatty foods.
CSN EN 17899. Chlorophyll-a in Water
This document describes a spectrophotometric method for determining the chlorophyll-a content corrected for phaeopigments as a measure of the amount of phytoplankton for all types of surface water including marine water.
CSN EN ISO 4829-2. Silicon in Steels
This standard specifies the methods for the determination of silicon content in steels by the reduced molybdosilicate spectrophotometric method.
CSN EN ISO 7541. Extractable Color in Spices and Condiments
This standard specifies the method for spectrophotometric determination of the extractable color in paprika (spices and condiments).
CSN EN ISO 10714. Phosphorus in Steel and Iron
This standard specifies the methods for the determination of phosphorus in steel and iron by the phosphovanadomolybdate spectrophotometric method.
CSN EN ISO 13900. Boron in Steels
This standard specifies the methods for determining boron in steel by the curcumin spectrophotometric method after distillation.






