For decades, the FAA has relied heavily on safety certifications performed by employees of aircraft manufacturers, whose work is overseen by the FAA.
Creating the requisite evidence for certification can be a challenging task due to the sheer size of the textual standards based on which certification is performed and the amenability of these standards to subjective interpretation.
Certification was performed by use of three different types of species-specific isotope-dilution mass spectrometry (SSID MS)—SSID GC ICP MS, SSID GC MS, and SSID LC ICP MS, with Sn-enriched organotin compounds synthesized from Sn-enriched metal used as a spike.
Certification was performed using two different types of species-specific isotope-dilution mass spectrometric (SSID MS) method gas chromatography coupled with inductively coupled plasma mass spectrometry (SSID GC ICP MS) [ 4] and SSID GC MS combined with a microwave-assisted extraction in which a mixture of Sn-enriched butyltins synthesized in our laboratory was used as a spike.
Certification procedure: During the initial phase from November 2001 to June 2003, test and pilot certifications were performed.
Where a certification body performs its own inspections, the inspection body is identical to the certification body.
In terms of energy efficiency and exhaust emissions control, an appropriate design of cooling systems of climatic chambers destined to vehicle certification and/or perform scientific research is becoming increasingly important.
