Rules, laws,Standards

The accuracy of a gas analyzer's readings is not just a matter of having a good instrument. It is a matter of correct and timely calibration. Even the most expensive and precision analyzer will drift over time: the zero point shifts, sensor sensitivity changes, and eventually the display shows figures that cannot be trusted. Calibration brings the instrument back to its certified accuracy. However, there is no universal recipe here. Calibrating a flue gas analyzer for a boile

The sphere of environmental responsibility is undergoing a profound transformation. Not only are climate conditions changing year by year, but market demands, legislative requirements, and societal expectations are shifting as well. On April 15, 2026, the International Organization for Standardization (ISO) gave a decisive response to these challenges by publishing the long-awaited new version of one of the world's most sought-after standards — ISO 14001:2026 "Environmental m

From the author: In our previous articles, we examined general issues of product certification for the EAEU and Uzbekistan markets, and we also took a detailed look at the procedure for entering measuring instruments into the state register. Now we turn to another key topic — environmental certification, which in Uzbekistan is closely linked to the national standards O‘zMSt 194 and 195 and the activities of the state center “Davekosertifikat”. For manufacturing enterprises, t

For many manufacturers and importers, the initial conformity certification (EAC or GOST Uz) seems to be the final stage that opens the way to the market. However, for a wide range of products — from household electricity meters to industrial gas analyzers — this path will be closed without completing a second, strictly regulated procedure: entry into the state register of measuring instruments (MI). A certificate confirms safety, while entry into the register confirms metrolo

Entering the markets of the Eurasian Economic Union (EAEU) and Uzbekistan requires manufacturers and importers not only to have a quality product, but also to confirm its compliance with local safety requirements. Product certification is not a mere formality – it is a mandatory condition for the legal import, sale, and operation of goods. In this article, we will examine why certification is needed, what types of documents exist, who issues them, and how the procedure works

Introduction Calibration gas mixtures are not merely cylinders of gas. They are the foundation upon which the accuracy of all gas analytical measurements in industry, environmental monitoring, and scientific research rests. Without them, it is impossible to confirm that a gas analyzer on a factory stack is telling the truth, or to ensure that a methane leak detector will provide a timely warning of danger. Calibration gas mixtures are state reference materials of gas composit

Environmental legislation is a much older phenomenon than is commonly believed. The earliest surviving laws on nature protection were carved in cuneiform on basalt stelae as early as the 18th century BCE: the Babylonian king Hammurabi included an entire section on forest protection and punishments for unauthorized logging in his famous code. In the 3rd century BCE, the Indian emperor Ashoka issued edicts protecting wild animals and vegetation, drawing upon Buddhist principles

The industrial giants erected during the first Five-Year Plans and post-war reconstruction still largely define the environmental landscape across vast territories from the Urals to the Tien Shan. Their smoking chimneys and effluents flowing into rivers without proper treatment are a familiar reality for many cities in Russia and Central Asian countries. But why does this happen? Did the Soviet Union have any real environmental standards , and if so, why are we now paying suc

Over the past two decades, China has made an unprecedented leap in the field of environmental monitoring. From a country with catastrophic levels of air and water pollution, it has transformed into one of the world’s leaders in implementing modern environmental control systems. Today, environmental monitoring in China is a high-tech industry that brings together thousands of automatic observation stations, satellite remote sensing systems, mobile laboratories, and powerful da

In December 2024, the European Union adopted Directive 2024/2881/EU, marking the most significant revision of ambient air quality standards in two decades. This document does more than just tighten limit values for well‑known pollutants such as PM10, PM2.5 or nitrogen dioxide. The real revolution lies elsewhere: for the first time at the EU level, three substances that have long remained in the shadows – ultrafine particles (UFP), black carbon (BC) and ammonia (NH₃) – become