Industrial Utility Efficiency    

Standards

An Energy Management System (EnMS) according to ISO 50001:2018 provides companies with a strategic tool to help manage the performance of energy-consuming equipment, including compressed air systems. Improved performance of a compressed air system, in turn, can go a long way toward lowering energy costs and improving system uptime, both of which provide the ability to reduce the company’s carbon footprint. Here’s a look at the standard and important considerations involved in the implementation of an EnMS for a compressed air system according to ISO 50001.

ISO and CAGI

This article will focus on ISO8573-7 normative test methods and analysis for viable microbiological contaminants and how it can be fundamentally utilized in compressed air microbial monitoring plans. The quality of the compressed air must be monitored periodically to fulfill national and international standards. ISO 8573 is an available standard addressing compressed air quality. It consists of nine parts that address purity classes, specifications, and procedures. ISO 8573-7:2003, can be utilized across all industries’ compressed air microbial monitoring plans. It contains both informative and normative procedures but lacks any tested compressed air microbial specifications regarding colony enumeration limits for microbial plate counts.

NFPA 99 Medical Air

Compressed air and gases are vital to numerous healthcare facility operations. Commonly used for breathing, sedation, and the operation of medical instruments, healthcare facilities must rely on these utilities for lifesaving and therapeutic benefits. The quality of the air and gas produced by the facility’s compressed air systems is paramount to their efficacy in promoting positive outcomes for patients.

Energy Management

ANSI /ISA–7.0.0–1996 is the globally-recognized quality standard for instrument air as defined by the Instrument Society of America. In this article, we’ll go through the Standard’s four elements of instrument air quality for use in pneumatic instruments.

Food Grade Air

According to the United States Department of Agriculture, more than 30,000 food and beverage processing plants across the United States employ more than 1.5 million workers.1 Each of those plants applies a wide range of processes to raw agricultural goods to produce consumable food and beverage products.
BSA LifeStructures is a full service architectural and engineering firm specializing in healthcare, higher education and technology facilities. We employ close to 260 associates and are established in two locations; Indianapolis and Chicago. Our strongest focus is on hospitals and university facilities.
Hazardous breathing conditions exist in routine industrial operations, such as hospitals, abrasive blasting, paint spraying, industrial cleaning, and arc welding. In these and other operations that introduce contaminants into the workplace, supplied-air respirators are frequently used for worker protection.
A good-size hospital with 200 beds and ten operating rooms can have a medical air system, a laboratory air system, and pneumatic air systems. The medical air systems must all follow the NFPA 99 guidelines. We follow these guidelines, from the beginning, when we assess the demand for air in a hospital.
The most abundant contaminant in any compressed air system is water. This can be in either liquid or vapour form. Atmospheric air is already very wet, and becomes saturated when compressed. This water vapour will condense when the temperature drops, after the compressor, and will damage air receivers, pipework and equipment. For this reason coalescing filters and then dryers are used to remove the bulk of this water.  
In the U.S. as an example, the NFPA has taken the view that if your compressor draws in good clean ambient air, the air stays clean through the compressor, is then dried and filtered, when you deliver it to the patient it will be entirely satisfactory. After all, when you went into the hospital that’s what you were breathing and when you leave you will breathe it again!
The next time you sit down for dinner, take a good look at your food. There’s a very good chance compressed air played an essential role in preparing your meal for consumption.
If you have ever looked at the small print of a compressor brochure or a CAGI Data Sheet or a compressor technical information page, you have probably seen some reference to one of the above standards.  At one time or another, US compressor manufacturers have used these standards to test and report compressor performance.  These are referred to as “Acceptance Test” codes.
Most readers of this magazine are familiar with the ISO 9000 and 14000 families of standards.  The 9000 family pertains to quality management systems and the 14000 family deals with environmental management.
Industry standards serve a very important purpose for the end users of compressed air equipment.  If the standards are well written, they can help to promote the equipment that they govern, as long as the equipment manufacturers properly apply and promote the standards.
Compressors in today’s market must meet a variety of standards written by a wide range of organizations throughout the world.   Until recently, most standards were written to deal with safety, both mechanical and electrical, and performance of the individual components of a compressed air system.