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At Abrisa Technologies, We Focus on Quality

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Each Abrisa Technologies division Quality Management System has its foundation on the International Quality System Standard ISO9001. Abrisa Technologies strives for excellence through various SPC (statistical process controls) methods such as control charts, continuous improvement and design of experiments to name a few as well as the use of 5S’s methodologies.

 

Our customers value our emphasis to quality, commitment to customer satisfaction and our discipline and rigor for process development with an emphasis on prevention. Each of our divisions continuously review key aspects in our processes and procedures that help us drive continuous improvement initiatives. Our goal is to continue to use Statistical Engineering tools for problem solving that combined with our extensive in-house training and strict procedures would result in Abrisa Technologies being your best precision glass optics solution.

 

The divisions of Abrisa Technologies have the ability to comply with many industry quality standards as well as with customer specific requirements. These industry quality standards include ANSI, ASME, ASTM, NCSL, ISO, MIL, including MIL-PRF-13830B, DIS, JAN, and SAE.

 

Specification Standards

Surface Quality can be specified in accordance with MIL-O-13830. Your specific application will determine the quality level and test procedures necessary. Specifically, this spec defines the state of polish, and freedom from scratches and digs. Abrisa uses a Scratch / Dig Card for quality inspections. See a sample of this card by downloading the pdf file. Important note: this pdf is not the original Scratch / Dig card, and should not be used for quality assurance inspections.

 

It is critical to use trained quality inspectors operating under standardized lighting conditions to achieve consistent results. Abrisa’s Quality Engineer leads our team of inspectors to ensure the quality level is monitored.

 

Scratches

A scratch is defined as any linear “tearing” of the surface of the glass. The scratch number refers to the width of the reference scratch. See Standards Table below. Keep in mind that this equivalence is determined purely by visual comparison, and the appearance of a scratch can depend upon the component material, presence of any coatings, and lighting conditions. This, again, refers to the width. The acceptance / rejection of the length of a specified scratch is determined by a ratio of the length of the scratch to the size of the glass part.

 

Digs

A dig is defined as a pit or small crater on the surface of the glass. Digs are defined by their diameter. The dig number represents the actual size of the dig in hundredths of a millimeter. The diameter of an irregularly shaped dig is ½ x (Length + Width).

 

Coating Defects

Coating scratches and digs shall not exceed the values specified for the substrate on the component drawing or procurement document. Coating scratches and digs shall be considered separate from the substrate scratch and dig requirement.

 

Glass Irregularities

Bubbles or Internals may be inherent in the substrate. If a particular level of glass quality is necessary for your project, a spec will be required.

 

Standards Table

Scratch Dig Inspection Grade
120 80 Commercial quality
80 50 Common acceptable cosmetic standard
60 40 Acceptable for most scientific research applications

 

Scientific Grade
40 20 Laser quality
20 10 Optics precision

 

Abrisa Scratch / Dig Inspection Standard Document AS1001 icon-pdf
This standard documents Abrisa’s inspection methods for cosmetic defects. Without explicit instructions, customer orders will default to this standard.

 

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