Are We Speaking the Same Language? The word definition highlighted in blue on a dictionary page

A common phrase is “words matter.” For inspection, testing, and maintenance (ITM) of water-based fire protection systems, that is certainly true. When ITM is considered on a global scale, the importance of aligned terms increases considerably, because a system designed under one standard may be maintained under another by people who learned the trade in a different country and a different language.

Language barriers and contextual variations can each lead to misunderstandings with undesirable outcomes, and industry slang makes the problem larger. From simple system descriptions to complicated system design parameters, our industry depends on clear, effective communication to express important thoughts. In this second installment of IFSA’s series on inspection, testing, and maintenance, we will explore how consistent, clearly understood definitions can improve the overall effectiveness of an ITM program, wherever in the world it is carried out. The first installment, Why ITM Matters, sets out why this work deserves attention.

Why Definitions Matter in ITM

In many standards, one section receives considerable attention: the section that addresses definitions. NFPA places its definitions in chapter 3 of each document. EN 12845-1 places its terms and definitions in clause 3, and ISO 13943 provides a fire safety vocabulary for use across ISO and IEC fire standards. Ensuring that the terms in these documents are applied correctly in their intended context is key. Even terms that have a seemingly straightforward meaning and are commonly interpreted the same way can cause serious difficulty when misapplied.

It is not uncommon for similar terms used in different documents to have completely different meanings. A discussion between two water-based fire protection system contractors about a fire pump, for example, is unlikely to create confusion, since both will think of the stationary pump addressed by NFPA 20. Add to the conversation a firefighter who pictures a fire pump as part of a fire apparatus, and the two groups may speak for several minutes about different equipment. This is a rudimentary example, but it shows how even familiar industry vocabulary can create confusion.

How Standards Differ Around the World

The difficulty increases when documents from different regions are placed side by side. NFPA 25 treats inspection as a visual examination to verify that a system appears to be in operating condition and is free of physical damage. A New Zealand unit standard used in fire protection training describes inspection more broadly, as an organized examination of the characteristics of a system against established standards. Australia uses the term routine service in AS 1851 for the combined work of inspection, testing, preventive maintenance, and survey. In Europe, EN 12845-1 calls for an inspection report that lists deviations from the standard for action, and in the United Kingdom the LPC Technical Bulletin TB 203 supplements it with guidance on care and maintenance. Each approach is internally consistent. A reader who moves between them without noticing the differences can still reach a wrong conclusion about what was actually done, and that risk grows with every border a report crosses.

Confusion about the terminology in these publications can lead users to misunderstand their scope or apply their provisions incorrectly. Standards, guides, recommended practices, and design documents all depend on the user recognizing what they address and the circumstances in which they apply. Misapplying rules for one system or portion of a system to those of another can have devastating consequences.

Establishing consistent terminology across such a broad body of technical material is not an easy task. NFPA includes definitions in its codes and standards, and it also maintains a more comprehensive glossary of terms used throughout its library of standards, recommended practices, and guides. As of its last printing in 2024, that glossary comprises over 4,800 pages and includes approximately 10,000 terms. Translation adds a further layer. A term defined with care in one language must be rendered in another, and the translator may select a word whose scope is slightly different from the original. National adoptions of a single European standard, such as EN 12845-1, appear in many languages, and each adoption carries the same technical intent only when its terms are carried across with equal care. Units form part of the same problem, because a pressure stated in bar in one document and in psi in another must be read with its unit in view.

Inspection, Testing, and Deficiency: Terms That Change the Outcome

A clear understanding of the words used, as well as their intent, in standards and other regulatory documents is important. That need extends well beyond regulations. When inspections, tests, or maintenance are performed on a water-based fire protection system, documenting that work is an important part of the process. This is a case where a misunderstanding caused by unclear terms is not only a communication issue but can lead to system failure and expose those involved to liability.

We will explore the importance of written reports and records in greater detail in future installments, but clear communication always begins with the terms used to convey information. It is not only the results of the work that matter. Understanding what certain terms mean also establishes the limits of what can be expected, and problems arise when one party assumes something was done when it was not. When the terms inspection and testing are used interchangeably, someone may assume that performance was measured when, in fact, only a visual examination was performed.

Words used to report the results of inspections or tests are another example. Negative findings are often reported as “deficiencies,” but there are varying levels of significance. Does that term apply equally to a missing sign and to a shut valve that renders the system inoperable? The 2026 edition of NFPA 25 separates findings into noncritical deficiencies, critical deficiencies, and impairments, and it further divides impairments into emergency and preplanned conditions. The annex to the standard also shows that some conditions can be classified in more than one way, depending on the context in which they are found. Other documents use other words, such as deviations, for similar findings. A technician in one country who writes “critical deficiency” and a facility manager or insurer in another who reads “deviation” may each believe they have understood the other, and neither can be sure. Misunderstanding here can have catastrophic repercussions.

Clear Reporting Starts With Clear Terms

Clear communication involves two parties. Technicians may use the correct terminology and document findings adequately and appropriately, but if the facility manager does not understand the issues, the need for action may be lost. Taking time to explain technical reports and confirming that the right message was conveyed is a worthwhile exercise, and that simple step can make an important difference.

Not all information is conveyed in writing. Terms used during verbal reports must be clearly understood by both the sender and the receiver, and this is more demanding when the two do not share a first language. There are many examples in history of confusion caused by misused or misinterpreted spoken language, and our industry is subject to the same risk. These misunderstandings can occur anywhere and involve anyone. They are not limited to a job site. Even within our own organizations, miscommunication between technicians in the field and those responsible for coordinating follow-up work can result in missed opportunities or in needed corrections being overlooked.

Like many other industries, the fire sprinkler industry has its own vocabulary, including familiar words that carry different meanings outside our field. The most basic term we use is “sprinkler,” and even that can mean something else entirely to someone outside our circle. Our industry also has its own long list of slang terms which, to anyone on the inside, are often well understood. To those outside the industry, and especially to those reading in a second language, such expressions can be meaningless or, in some cases, offensive.

Practical Steps for Consistent Terminology

How do we avoid these costly or even dangerous misunderstandings? The first step is to use the correct term for the situation and to confirm that the term is properly defined in the document that governs the work, naming that document whenever a report may be read by someone who works under a different one. The second step is awareness. Recognizing when a reader or listener may need an explanation is equally important, and depending on the circumstances it may be necessary to explain briefly an unfamiliar term and how it applies to the work being documented.

Because the work of ITM is so critical to fire and life safety, the words we use to describe it deserve the same care as the work itself. A report that uses the right terms, in a form the reader can follow, has done its job, and one that has not is unfinished. Dependable ITM begins with dependable language.

Additional Reading

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Jason Webb

Jason Webb is a fire protection industry affairs consultant and trainer with more than 35 years of experience. Before retiring from the fire service, he spent over a decade as an AHJ in a high-growth metropolitan fire department. He is an accomplished author and instructor, is active in ICC and NFPA, and sits on numerous codes and standards committees.

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