DAS is Third-Party Certification (TPC) expert, including 3rd party inspection, training and calibration services, 3rd party assessment process your business and found that it has met certain standards. Process is recognized by regulatory agencies at e local, federal and international levels, DAS certification demonstrates that a product or service complies with all standard requirements. DAS conducts periodic facility audits to verify that the product continues to comply with the standard. We certifies a wide variety of products including all range of products and services.