ANSI S20.20-2007 Approved February 11, 2007 ESD Association
What was expected in 2007: Personnel Grounding Requirement
| Personnel Grounding Technical Requirement | Product Qualification1 | Compliance Verification | ||
| Test Method | Required Limits | Test Method | Required Limits | |
| Wrist Strap System2 | ANSI/ESD S1.1 (Section 5.11) | < 3.5 x 10E7 | ESD TR53 Wrist Strap Section | < 3.5 x 10E7 ohms |
| Flooring/Footwear System – Method 1 | ANSI/ESD STM97.1 | < 3.5 x 10E7 ohms | ESD TR53 Flooring Section | < 3.5 x 10E7 ohms |
| ESD TR53 Footwear Section | < 3.5 x 10E7 ohms | |||
| Flooring/Footwear System – Method 2 (both required) | ANSI/ESD STM97.1 | < 10E9 ohms | ESD TR53 Flooring Section | < 1.0 x 10E9 ohms |
| ANSI/ESD STM97.2 | < 100 volts | ESD TR53 Footwear Section | < 1.0 x 10E9 ohms | |
- Product qualification is normally conducted during the initial selection of ESD control products and materials. Any of the following methods can be used: product specification review, independent laboratory evaluation, or internal laboratory evaluation.
- For situations where an ESD garment is used as part of the wrist strap grounding path, the total system resistance including the person, garment and grounding cord shall be less than 3.5 x 10E7 ohms.
AmeriWorx Conductive Vinyl Tile Meets These Requirements
What was expected in 2007: EPA ESD Control Items
| Technical Requirement | ESD Control Item | Product Qualification1 | Compliance Verification | ||
| Test Method | Required Limit(s)2 | Test Method | Required Limit(s) | ||
| EPA | Worksurface | ANSI/ESD S4.1 and/or ANSI/ESD STM4.2 | < 1 x 10E9 ohms and/or < 200 volts | ESD TR53 Worksurface Section | < 1 x 10E9 ohms resistance to ground |
| Wrist Strap Cord | ANSI/ESD S1.1 | 0.8 x 10E6 to 1.2 x 10E6 ohms | For compliance verification of a wrist strap system, see Personnel Grounding Requirement Table | ||
| Wrist Strap Cuff | ANSI/ESD S1.1 | Interior > 1 x 10E5 ohms | |||
| Exterior > 1 x 10E7 ohms | |||||
| Wrist Strap Cord Bending Life | ANSI/ESD S1.1 | > 16,000 cycles | |||
| Footwear | ANSI/ESD STM9.1 | < 1 x 10E9 ohms | See Personnel Grounding Requirement Table | ||
| Foot Grounders | ESD SP9.2 | < 1 x 10E9 ohms | |||
| Flooring | ANSI/ESD S7.1 | < 1 x 10E9 ohms | |||
| Seating | ANSI/ESD STM12.1 | < 1 x 10E9 ohms | ESD TR53 Seating Section | < 1 x 10E9 ohms resistance to ground | |
| Ionization other than Room Systems | ANSI/ESD STM3.1 – Discharge time – Offset voltage | User defined < ± 50 volts | ESD TR533 – Discharge time – Offset voltage | User defined < ± 50 volts | |
| Ionization (Room Systems) | ANSI/ESD STM3.1 – Discharge time – Offset voltage | User defined < ± 150 volts | ESD TR53 – Discharge time – Offset voltage | User defined < ± 150 volts | |
| Shelving | ANSI/ESD S4.1 | < 1 x 10E9 ohms | ESD TR53 Worksurface Section | < 1 x 10E9 ohms resistance to ground | |
| Mobile Equipment (Working Surfaces) | ANSI/ESD S4.1 | < 1 x 10E9 ohms | ESD TR53 Mobile Equipment Section | < 1 x 10E9 ohms resistance to ground | |
| Continuous Monitors | User defined | User defined | ESD TR53 Continuous Monitors Section | Manufacturer defined | |
| Garments | Static-Control Garment (ANSI/ESD STM2.1) | < 1 x 10E11 ohms | ESD TR53 Garments Section | < 1 x 10E11 ohms | |
| Groundable Static-Control Garment (ANSI/ESD STM2.1) | < 1 x 10E9 ohms | ESD TR53 Garments Section | < 1 x 10E9 ohms | ||
| Groundable Static-Control Garment System (ANSI/ESD STM2.1) | < 3.5 x 10E7 ohms | ESD TR53 Garments Section | < 3.5 x 10E7 ohms | ||
- Product qualification is normally conducted during the initial selection of ESD control products and materials. Any of the following methods can be used: product specification review, independent laboratory evaluation, or internal laboratory evaluation.
- For standards that have multiple resistance test methods, these limits apply to all methods.
- For additional information on periodic testing of Ionizers, see ANSI/ESD SP3.3.
AmeriWorx Conductive Vinyl Tile Meets These Requirements
ANSI S20.20-2014 Approved July 31, 2014 ESD Association
What was expected in 2014: Personnel Grounding Requirement
| Personnel Grounding Technical Requirement | Product Qualification4 | Compliance Verification | ||
| Test Method | Required Limits | Test Method | Required Limits | |
| Wrist Strap System2 | ANSI/ESD S1.1 (Section 6.11) | < 3.5 x 10E7 ohms | ESD TR53 Wrist Strap Section | < 3.5 x 10E7 ohms |
| Flooring/Footwear System5 (Both limits must be met) | ANSI/ESD STM97.1 | < 1.0 x 10E9 ohms | ESD TR53 Flooring Section | 1.0 x 10E9 ohms(6) |
| ANSI/ESD STM97.2 | < 100 volts peak | ESD TR53 Footwear Section | 1.0 x 10E9 ohms(6) | |
- Product qualification is normally conducted during the initial selection of ESD control products and materials. Any of the following methods can be used: product specification review, independent laboratory evaluation or internal laboratory evaluation.
- For ESD control footwear/flooring systems that were installed before the adoption of this standard, ongoing compliance verification records can be used as evidence of product qualification.
- The required limit of < 1.0 x 10E9 ohms is the “maximum” allowed value. The user should document the resistance values that were measured for product qualification for the footwear and the floor to comply with the < 100 volts body voltage generation and use these resistances for compliance verification.
AmeriWorx Conductive Vinyl Tile Meets These Requirements
What was expected in 2014: ESD Control Items
| Technical Requirement | ESD Control Item | Product Qualification1 | Compliance Verification | ||
| Test Method | Required Limit(s)8 | Test Method | Required Limit(s) | ||
| EPA | Worksurface(9,10) Qualification can be done by either Test Method) | ANSI/ESD S4.1 and/or ANSI/ESD STM4.2 | Point to Point < 1 x 10E9 ohms | ESD TR53 Worksurface Section | Point to Ground < 1 x 10E9 ohms resistance to ground |
| Point to Groundable Point < 1 x 10E9 ohms | |||||
| < 200 volts | |||||
| Wrist Strap | ANSI/ESD S1.1 | 0.8 x 10E6 to 1.2 x 10E6 ohms | |||
| Wristband | ANSI/ESD S1.1 | Interior > 1 x 10E5 ohms | For compliance verification of a wrist strap system, see Personnel Grounding Requirement Table | ||
| Exterior > 1 x 10E7 ohms | |||||
| Personnel Ground wrist strap connection (non-monitored) | ANSI/ESD S6.1 | Point to Ground < 2 ohms | ESD TR53 Grounding Bonding Systems | Point to Ground < 2 ohms | |
| Footwear | ANSI/ESD STM9.1 | Point to Groundable Point < 1 x 10E9 ohms | For compliance verification of Footwear/Flooring System, see Personnel Grounding Requirement Table. | ||
| Foot Grounders | ESD SP9.2 | Point to Groundable Point < 1 x 10E9 ohms | |||
| Flooring | ANSI/ESD STM7.1 | Point to Point < 1 x 10E9 | |||
| Point to Groundable Point < 1 x 10E9 ohms | |||||
| Seating | ANSI/ESD STM12.1 | Point to Groundable Point < 1 x 10E9 ohms | ESD TR53 Seating Section | Point to Ground < 1 x 10E9 ohms | |
| Ionization | ANSI/ESD STM3.1 | Discharge Time User defined | ESD TR5311 Ionization Section | Discharged Time User defined Offset Voltage -35 < V offset < 35 | |
| Offset Voltage -35 < V offset < 35 | |||||
| Shelving (When used to store unprotected ESDS) | ANSI/ESD S4.1 | Point to Groundable Point < 1 x 10E9 ohms | ESD TR53 Worksurface Section | Point to Ground < 1 x 10E9 ohms | |
| Mobile Equipment (Working Surfaces) | ANSI/ESD S4.1 | Point to Point < x 10E9 | ESD TR53 Mobile Equipment Section | Point to Ground < 1 x 10E9 ohms | |
| Point to Groundable Point < 1 x 10E9 ohms | |||||
| Electrical Soldering/ Desoldering Hand Tools | ANSI/ESD S13.1 | Tip to Ground < 2.0 ohms | ESD TR53 Soldering Iron Section Or ANSI/ESD S13.1 Section 6.1 | Tip to Ground < 10 ohms | |
| Tip < 20 millivolts | |||||
| Tip Leakage < 10 milliamps | |||||
| Continuous Monitors | User defined | User defined | ESD TR53 Continuous Monitors Section | Manufacturer defined | |
| Static-Control Garment | ANSI/ESD STM2.1 | Point to Point < 1 x 1011 ohms | ESD TR53 Garments Section | Resistance Point to Point < 1 x 10E11 | |
| Groundable Static-Control Garment | ANSI/ESD STM2.1 | Point to Groundable Point < 1 x 10E9 ohms | ESD TR53 Garments Section | Resistance to Groundable Point < 1 x 10E9 ohms | |
| Groundable Static-Control Garment System | ANSI/ESD STM2.1 | < 3.5 x 10E7 ohms | ESD TR53 Personal Grounding with Garments Section | < 3.5 x 10E7 ohms | |
- Product qualification is normally conducted during the initial selection of ESD control products and materials. Any of the following methods can be used: product specification review, independent laboratory evaluation or internal laboratory evaluation.
- For standards that have multiple resistance test methods, these limits apply to all methods.
- Worksurfaces are defined as any surface on which an unprotected ESDS item is placed.
- Due to a wide variety of applications for worksurfaces, specific requirements that could be broadly applied are difficult to determine. If there is a concern for CDM failures, then a lower limit of 1x10E6 ohms for point to point and point to groundable point should be considered.
AmeriWorx Conductive Vinyl Tile Meets These Requirements
The following test reports show that AmeriWorx Tile meets all aspects of ESDA 20.20-2014 as reflected in the tables below:
EPA = ESD protected area. A defined location with the necessary materials, tools, and equipment capable of controlling static electricity to a level that minimizes damage to ESD susceptible items.
Examples: 100 = 10E2 , 1000 = 10E3 , 10000 = 10E4 , 100000 = 10E5 , 3.49 x 10E4 = 34900
ESD S7.1 Tests
“Flooring Resistance” — Ohms | 12% RH 72°F
| Resistance | To Groundable Point (10 Volts) | |
| Point A | Point B | |
| 1 | 3.49 x 10E4 | 4.90 x 10E4 |
| 2 | 3.59 x 10E4 | 3.04 x 10E4 |
| 3 | 3.78 x 10E4 | 4.58 x 10E4 |
| 4 | 4.91 x 10E4 | 2.46 x 10E4 |
| 5 | 2.73 x 10E4 | 2.96 x 10E4 |
| 6 | 3.21 x 10E4 | 3.72 x 10E4 |
| Average | 3.62 x 10E4 | 3.61 x 10E4 |
| Maximum | 4.91 x 10E4 | 4.90 x 10E4 |
| Minimum | 2.73 x 10E4 | 2.46 x 10E4 |
| Std. Dev. | 7.20 x 10E3 | 9.68 x 10E3 |
| Point to Point (10 Volts) | |
| 1 | 4.69 x 10E4 |
| 2 | 7.36 x 10E4 |
| 3 | 1.22 x 10E5 |
| 4 | 1.12 x 10E5 |
| 5 | 9.37 x 10E4 |
| Average | 8.96 x 10E4 |
| Maximum | 1.22 x 10E5 |
| Minimum | 4.69 x 10E4 |
| Std. Dev. | 3.02 x 10E4 |
ESD STM 97.1 Tests
“Resistance — with Person/Shoe” — Ohms Using Desco 17200 Foot Ground, Heel with 1 MEG Resistor
| Foot on Floor Resistance | Grounded | 12% RH 72°F | 100 Volts |
| Both Feet | Left Only | Right Only | |
| 1 | 7.06 x 10E5 | 1.31 x 10E6 | 1.34 x 10E6 |
| 2 | 7.04 x 10E5 | 1.32 x 10E6 | 1.33 x 10E6 |
| 3 | 6.69 x 10E5 | 1.27 x 10E6 | 1.29 x 10E6 |
| 4 | 6.72 x 10E5 | 1.29 x 10E6 | 1.30 x 10E6 |
| 5 | 6.77 x 10E5 | 1.33 x 10E6 | 1.30 x 10E6 |
| Average | 6.86 x 10E5 | 1.30 x 10E6 | 1.31 x 10E6 |
| Maximum | 7.06 x 10E5 | 1.33 x 10E6 | 1.34 x 10E6 |
| Minimum | 6.69 x 10E5 | 1.27 x 10E6 | 1.29 x 10E6 |
| Std. Dev. | 1.80 x 10E4 | 2.41 x 10E4 | 2.17 x 10E4 |
ESD STM97.2 Tests
“Voltage with Person” 12% RH Grounded Charge Generation Voltage (Peak Voltage) Using Estatec Shoes ESH-N1s8
| Floor | Walk |
|---|---|
| 1 | 11 |
| 2 | 12 |
| 3 | 11 |
| 4 | 12 |
| 5 | 10 |
| 6 | 10 |
| 7 | 10 |
| 8 | 13 |
| 9 | 12 |
| Average | 11 |
| Maximum | 13 |
| Minimum | 10 |
| Std. Dev. | 1 |
ESD STM97.2 Tests
“Voltage with Person” 12% RH 72°F Grounded Charge Generation Voltage (Peak Voltage) Using Desco 17200 Foot Ground, Heel with 1 MEG Resistor
| Floor | Walk | Scuff |
| 1 | -4 | -15 |
| 2 | -5 | -17 |
| 3 | -6 | 22 |
| 4 | 4 | 20 |
| 5 | 5 | -8 |
| 6 | 5 | -13 |
| 7 | -10 | 11 |
| 8 | -6 | -19 |
| 9 | 7 | 12 |
| Average | -1 | -1 |
| Maximum | 7 | 22 |
| Minimum | -10 | -19 |
| Std. Dev. | 6 | 17 |
ESD STM97.2 Tests
“Voltage with Person” 12% RH Grounded Charge Generation Voltage (Peak Voltage) Using Desco 17292 Foot Ground Full Coverage, 2 MEG
| Floor | Walk | Scuff |
| 1 | 2 | 8 |
| 2 | 4 | 15 |
| 3 | 3 | 14 |
| 4 | 4 | 18 |
| 5 | -4 | 20 |
| 6 | 3 | 17 |
| 7 | 5 | 18 |
| 8 | 6 | 19 |
| 9 | 4 | 13 |
| Average | 3 | 16 |
| Maximum | 6 | 20 |
| Minimum | -4 | 8 |
| Std. Dev. | 3 | 4 |
Benefits of AmeriWorx® ESD Solid Vinyl Tile
Proven ANSI/ESD S20.20 Compliance
Extensively tested to meet both ANSI S20.20-2007 and ANSI S20.20-2014 requirements, AmeriWorx® conductive vinyl tile supports compliant ESD programs across personnel grounding, flooring/footwear systems, and EPA control items.
Verified Performance Through Independent Testing
Comprehensive test reports using ANSI/ESD S7.1, STM97.1, and STM97.2 demonstrate consistent resistance-to-ground and low body voltage generation—even under low-humidity conditions.
Reliable Flooring-to-Footwear Grounding
Designed to work as part of a complete ESD system, the tile delivers stable, repeatable results with common ESD footwear and foot grounders, helping control charge generation below critical voltage thresholds.
Precision-Milled, Gap-Free Installation
High-accuracy tile edges and high-density resin construction eliminate gaps and shrinkage, ensuring uniform electrical performance and long-term dimensional stability.
Low Maintenance with Long-Term ESD Integrity
No waxing or topical finishes are required to maintain conductive properties. The dense vinyl formulation resists scuffing, staining, and wear—reducing ongoing maintenance costs.
Durable for Extreme-Duty Environments
Engineered for high-traffic industrial and electronics manufacturing facilities, the flooring withstands heavy equipment, rolling loads, and daily operational abuse.
Color-Through Construction for Lasting Appearance
Color runs through the full thickness of the tile, so scratches and wear remain visually minimized over time—ideal for mission-critical spaces where appearance still matters.
Regulatory & Procurement Friendly
Meets Buy American requirements and complies with RoHS directives, making it suitable for government, aerospace, defense, and regulated manufacturing facilities.
Backed by System-Level Expertise
Supported by StaticWorx testing knowledge, documentation, and application support—ensuring your floor performs as intended within a complete ESD control program.
AmeriWorx® Conductive Vinyl Tile Resources
Static-Control Education at Your Fingertips
Explore the StaticWorx Knowledge Center for technical articles, videos, and guides to help you specify, install, and maintain ESD flooring with confidence.
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