ANSI/ESD S20.20 is the ESD Association's standard for building and running a program that protects electronics from electrostatic discharge, and flooring is one of the physical controls that a program built to that standard typically relies on. This guide explains what the standard covers, how a static-control floor fits into a broader ESD control program, which related ESD Association test methods apply to floors specifically, and what a written specification and verification plan should include. It is written for the facility manager, property owner, or project lead deciding on an ESD floor for a Colorado facility, not for the installation crew. If you manufacture, assemble, test, or handle parts that are susceptible to electrostatic discharge, this guide will help you ask better questions of a contractor and understand what a compliant floor system is expected to do. For pricing context once you have a scope in hand, the ESD Flooring Cost in Colorado guide and the cost calculator can help you estimate installed cost by city.
ANSI/ESD S20.20 is the ESD Association's standard for the development of an electrostatic discharge control program for protection of electrical and electronic parts, assemblies, and equipment. It covers administrative and technical requirements for establishing, implementing, and maintaining an ESD control program, and it applies to organizations that manufacture, process, assemble, install, package, label, service, test, inspect, transport, or otherwise handle electronic parts and assemblies susceptible to electrostatic discharge damage. The standard's technical requirements span grounding and equipotential bonding, personnel grounding, ESD protected areas, and packaging and marking.
A closely related international standard, IEC 61340-5-1, covers the same kind of administrative and technical requirements for an ESD control program and is described by the ESD Association as technically equivalent to ANSI/ESD S20.20. If your organization operates internationally or works with partners who reference IEC standards, ask your contractor which standard your written scope is built around, since the two are considered equivalent but are published separately.
Both standards' stated purpose is protecting electronic items from static damage. Neither one is a life-safety, fire, or explosion-prevention document, and this guide addresses that distinction in more detail further down.
ANSI/ESD S20.20 treats flooring as one element within a larger program rather than a stand-alone product decision. The standard's technical requirements include grounding and equipotential bonding, personnel grounding, and the definition of ESD protected areas — and where a program grounds personnel through static control footwear, the floor is part of the footwear/flooring system verified with STM97.1 and STM97.2.
A copper grounding grid is a common feature of ESD flooring systems, providing a path to electrical ground beneath a seamless floor surface. ESD resin systems are typically seamless and installed with an embedded copper grounding grid; check the manufacturer's data sheet for how the grid is laid out and tied to ground. ESD flooring is available in both static dissipative and conductive configurations, and it is designed to be compatible with ESD footwear and personnel-grounding programs used within the protected area.
Facility types that commonly install ESD flooring include electronics manufacturing and assembly, data centers and server rooms, semiconductor fabrication, medical device manufacturing, and aerospace avionics facilities. If your facility falls into one of these categories, the Colorado ESD Flooring contractor hub and the Colorado hub for Manufacturing & Industrial Production facilities are where you can find Colorado contractor listings for ESD flooring and manufacturing facilities.
Several ESD Association documents address flooring and grounding specifically, rather than the overall program.
| Standard | What it covers |
|---|---|
| ANSI/ESD S6.1 | Parameters, materials, equipment, and test procedures to choose, establish, verify, and maintain an ESD control grounding system within an ESD protected area, including criteria for bonding in field service operations |
| ANSI/ESD STM7.1 | Procedures for measuring the electrical resistance of floor materials, including qualification before installation and acceptance/monitoring testing after installation, plus guidance on characterizing a floor as conductive or dissipative |
| ANSI/ESD STM97.1 | Test method for measuring the electrical system resistance of floor materials in combination with a person wearing static control footwear |
| ANSI/ESD STM97.2 | Test method for measuring the voltage generated on a person walking across a floor material in combination with static control footwear |
These test methods measure and document resistance of the floor (STM7.1), system resistance of a person in static control footwear standing on it (STM97.1), and voltage generated by a person walking on it (STM97.2), both before and after installation. Ask your contractor which of these test methods they plan to run, and in what order, as part of acceptance.
A specification for an ESD floor should connect the product data sheet, the installation conditions, and the verification plan into one document rather than leaving any of them implied.
Humidity, temperature and cleaning products can affect ESD floor performance, so ask the contractor and manufacturer data sheet how conditions are controlled and verified. If your project also involves a protective coating system elsewhere in the facility, the Industrial Floor Coatings Cost in Colorado guide and the Colorado Industrial Floor Coatings contractor hub cover that separately.
Verification of an ESD floor happens at two points: before installation, when the material itself is qualified, and after installation, when the installed system is tested in place.
Product qualification testing under ANSI/ESD STM7.1 characterizes the floor material as conductive or dissipative based on its resistance to a groundable point and point-to-point resistance. Ask to see this data on the manufacturer's data sheet before the material is ordered.
Acceptance testing typically includes resistance-to-ground and point-to-point measurements on the installed floor under ANSI/ESD STM7.1, system resistance testing with a person standing on the floor in static control footwear under ANSI/ESD STM97.1, and walking-body-voltage testing under ANSI/ESD STM97.2. Confirm in writing who performs each test, what equipment is used, and how the results will be recorded and shared with you. ANSI/ESD S6.1 is the relevant document if your program also needs to verify the grounding system itself, including equipotential bonding and common point grounds, within the ESD protected area.
ANSI/ESD S20.20 is an ESD-control program standard for electronic parts; it is not a combustible-dust or explosion-prevention standard. Dust hazards are handled under NFPA 652/654 (consolidated into NFPA 660) and NFPA 77.
Combustible dust and particulate solid hazards are addressed by a separate family of standards, including NFPA 652 and NFPA 654 (combined into NFPA 660), which cover the fire, flash fire, and explosion hazards of combustible dusts and particulate solids and direct users to hazard identification and mitigation requirements. NFPA 77 separately covers guidance on identifying, assessing, and controlling static electricity for the purpose of preventing fires and explosions.
If your facility handles both ESD-susceptible electronics and combustible dust or particulate materials, treat these as two distinct scopes in your specification and ask each contractor which standard their portion of the work is designed to support.
ANSI/ESD S20.20 covers an entire ESD control program, including grounding, personnel grounding, protected areas, and packaging, not flooring alone. A compliant floor is typically one component within that broader program, tied into the facility's grounding system and used alongside static control footwear. Ask your contractor how the floor you are installing is meant to integrate with the rest of your program documentation.
Dissipative and conductive are two classifications used to characterize a floor material's resistance, as described in ANSI/ESD STM7.1. Which classification is appropriate for your facility depends on the product and the application; confirm the classification stated on the manufacturer's data sheet and discuss which one fits your equipment and process with your contractor.
Product qualification testing under ANSI/ESD STM7.1 characterizes the floor material itself before it is installed. After installation, acceptance testing typically includes resistance measurements on the installed floor, system resistance testing with a person in static control footwear under ANSI/ESD STM97.1, and body-voltage testing under ANSI/ESD STM97.2.
ANSI/ESD S20.20 is an electronics ESD-control program standard, not a combustible-dust or ignition-control standard, and dust hazards need a separate hazard analysis (NFPA 652/654, now consolidated into NFPA 660; NFPA 77). Confirm with a qualified source which standard applies to your hazard.
Your written scope should specify who performs the post-installation testing, what equipment they use, and how results are documented, since this is not automatic. Ask your contractor whether this testing is included in their scope or needs to be arranged separately, and request that results be delivered in writing for your records.
Humidity, temperature and cleaning products can affect ESD floor performance, but how they affect a given installation depends on the specific product and the conditions recorded on the day of install. The manufacturer's data sheet governs installation requirements, so confirm subfloor and ambient conditions with your contractor rather than relying on general climate assumptions.
The Colorado ESD Flooring contractor hub is the starting point for contractor listings (confirm ESD experience with each contractor directly), and the ESD Flooring Cost in Colorado guide along with the cost calculator can help you estimate installed cost by city once you have a written scope. If your project also includes industrial coatings elsewhere in the facility, the related Colorado contractor hub and cost guide cover that scope separately.
What ESD (static-control) flooring costs per square foot in Colorado, how price scales by market, and what grounding and testing add to a quote.
What industrial floor coatings cost per square foot in Colorado, how price scales by market, and what separates a basic coating from a high-build system.
FloorSpec matches commercial flooring projects to contractors whose service areas and service types fit the work. We review each contractor's credentials, insurance, and licensing. We do not verify a contractor's track record with a specific facility type, so ask about relevant experience during your own evaluation. FloorSpec is free for project owners.
Two-minute form. One reviewed contractor. Free for project owners.