The quality of the finished product is solely dependent on the quality of its ingredients in any high-purity manufacturing method or scientific laboratory. The reagents used to conduct a chemical analysis determine its level of reliability. For many years, the world’s scientists required a standard language to describe the quality and purity of the most widely used chemical reagents.
The ISO 6353 series standardized this terminology, with ISO 6353-3:1987 — Reagents for chemical analysis — Part 3: Specifications — Second series serving as a crucial chapter. For another set of basic chemicals used on a daily basis in laboratories, this worldwide standard served as the gold standard. But the vocabulary of purity has evolved along with science and technology.
Anyone working in the field needs to be aware that ISO 6353-3:1987 has been formally withdrawn. The purpose of this guide is to describe the standard’s significant history, its scope, and how its tenets have developed into modern best practices. In order to guarantee that our clients’ quality systems are strong and current, TNV inspection division, a renowned accredited inspection organization with our headquarters located in Lucknow, believes in offering clarity on both historical and present standards.
The international standard that outlined the purity standards and testing procedures for a “second series” of widely used chemical reagents was ISO 6353-3:1987. It involved putting the general testing procedures described in the now-withdrawn Part 1 of the standard into practice. Essentially, it carried on the work of Part 2 by establishing the minimal quality standard for these necessary lab chemicals.
This historical standard’s main goal was to provide uniformity and credibility in chemical analysis across the globe. It sought to:
Create a Universal Quality Benchmark: It gave each reagent a single, globally accepted specification, guaranteeing a constant degree of purity.
Ensure Reliable and Repeatable Results: Labs could be sure that their test results were accurate and unaffected by contaminants in their chemicals by employing reagents that complied with these requirements.
Promote Fair and Open Trade: By establishing a single language for quality, it made it possible for an Indian laboratory to purchase a reagent from a German source with complete assurance that it would fulfill the necessary standards.
The standard reference for several important laboratory compounds was ISO 6353-3. The standard offered a thorough specification for every reagent it covered, which included:
ISO 6353-3 was the go-to reference for a wide range of essential laboratory chemicals. For each of the reagents it covered, the standard provided a detailed specification that included:
The chemical formula and molecular weight.
The minimum assay (purity percentage).
Maximum limits for specific impurities (e.g., water content, residue on evaporation, heavy metals, chlorides).
Some of the common reagents specified in this standard included:
Acetic anhydride
Ammonia solution
Glycerol
Morpholine
Potassium permanganate
Silver nitrate
In order to represent the most advanced science and technology, international standards are continuously revised. Because analytical chemistry has evolved significantly, the ISO 6353 series was removed, not because it had flaws.
The current trend in practice is:
More Comprehensive Pharmacopoeias: For a wide variety of reagents, authoritative national and international pharmacopoeias, such as the Indian Pharmacopoeia (IP), European Pharmacopoeia (EP), and United States Pharmacopoeia (USP), now offer far more thorough and frequently updated standards.
Advanced Instrumental procedures: The development of extremely sensitive analytical tools, including as GC-MS, ICP-MS, and HPLC, has made it possible to identify contaminants at levels much lower than those achievable using the traditional test procedures mentioned in the original standard.
The idea that ISO 6353-3 promoted—the objective assessment of chemical purity—is more important than ever, even though the particular standard is no longer in use. TNV offers professional, third-party witnessing and verification of laboratory procedures against current national and international standards as a UAF-accredited inspection body that operates in accordance with ISO/IEC 17020.
Our painstaking verification procedure consists of:
Review of Current Specifications: For the reagents you use or manufacture, we evaluate your quality control processes to make sure they are referring to the most up-to-date and relevant standards (such as pharmacopoeias or particular active ISO standards).
Equipment and Methods Verification: Our inspector is on site to confirm that your analytical tools are calibrated and that the test procedures you use are appropriate for achieving the necessary purity.
Test Procedure Observation: We observe your lab workers conducting their tests to make sure the recorded protocols are adhered to accurately and honestly.
Endorsement of the Final Report: Our formal endorsement offers an unmatched degree of confidence that your quality control testing is being carried out impartially and accurately in accordance with current best practices.
It can be challenging to navigate the world of international standards, particularly in light of the advancement of scientific methodologies. The best assurance that your laboratory’s quality control procedures are sound, up to date, and based on integrity comes from independent verification.
Get in touch with the contact TNV Inspection Division right now for expert, certified, and internationally renowned inspection services.
With TNV Inspection Division, your reliable ISO 17020-accredited inspection partner, you may be sure that your chemical analysis is accurate!
