Quality
4G Quality Initiative
4G-Logo Grayhill's quality department has developed a company-wide structure to drive continuous improvement. The 4G quality initiative covers all facets of Grayhill's business, including design engineering, customer service, throughput and of course manufacturing from goods-in to orders shipped. All employees are encouraged to question quality and look for ways to improve the business by streamlining processes, changing methods, identifying constraints and tracking to goals. The name '4G' is a reminder of the following principles:
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Grayhill Passion for Customer Satisfaction
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Grayhill Professional Engineering
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Grayhill Pride in Consistent Production
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Grayhill Workflow Efficiency

Capabilities include the ability to test products for temperature extremes, thermal and mechanical shock, vibration, impact, seal, chemical resistance, UV, abrasion, drop, sunlight readability, salt spray, ESD, EMI, EMC, NVIS, electrical noise, power interruption and accelerated life testing.
For details on specific tests, see:
AS/ISO CERTIFICATIONS
AS9100D and ISO9001:2015 Certificate - La Grange, McCook, Carpentersville
ISO 9001:2015 Certificate - Shenzhen, China
ISO 9001:2015 Certificate - Iola, USA
ISO 14001:2015 Certificate - McCook, USA
ISO 14001:2015 Certificate - Shenzhen, China
MIL CERTIFICATION
Mil Facility Approval
ENVIRONMENTAL POLICY
ROHS COMPLIANCE
Grayhill Standard RoHS Statement
ROTARY SWITCHES AND MECHANICAL ENCODERS
RoHS Plating Validation Report
DIP SWITCHES
Lead-Free Process Compatibility Report
Lead-Free Tin Whiskering Report
REACH STATEMENT
Reach Statement
CONFLICT MINERALS STATEMENT
Conflict Minerals Statement
Conflict Minerals Declaration
PRODUCT ADVISORY NOTICES
Product Advisory Notices