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Analysis of Inter-Chamber Energy and Mass Transport in High-Low Pressure Gun Systems
August 1, 2016Authors: Ryan Hill and Logan McLeod Two assumptions are often made by lumped-parameter codes in the analysis of dual-chamber guns: (1) that the gas enters the large chamber at the propellant flame temperature, and (2) that the flow between the...
Modeling of Ordnance-Induced Pyrotechnic Shock Testing
August 1, 2016Authors: Logan McLeod and Santina Tatum Design of an ordnance-induced pyrotechnic shock test to meet a specific acceleration based Shock Response Spectrum (SRS) test requirement for a given test article has traditionally been an empirical process. Based on experience, the...
MIL-STD-810 Testing for Fitness Armband
July 19, 2016While the majority of NTS MIL-STD-810 testing is conducted on products for use in the defense sector, we often provide this testing for consumer product developers who want to demonstrate their products “ruggedness”. One recent example is Armpocket of Miami,...
International Approvals Update: Taiwan BSMI
July 14, 2016Recently, Taiwan BSMI has performed inspections in the market on products under BSMI DoC approval scheme. Aside from the BSMI mark with applicant’s code (“D number”) that appears on the product label, the inspectors want to ensure that the applicant’s...
Microbial Challenge Testing: Determine Fungicide Levels For Your Material Formulation
June 22, 2016The Microbial Challenge Test is commonly employed to determine the effectiveness of fungicides used in many products such as paints, plastics, wood, fabrics, footwear, finishes, etc… Once such test method comes from ISO 846 “Plastics – Evaluation of the action...
International Approvals Update – India BIS Amendment No. 2
June 13, 2016India BIS has established an Amendment No. 2 to IS 13252(Part1):2010 and the requirements are very similar to IEC 60950-1 A2. The current IS 13252(Part1):2010 (with amendment no. 1) is permitted until Dec 31st, 2016. For the existing registered models,...
Failure Analysis: A Road Map – Featured in InCompliance Magazine
June 6, 2016NTS Baltimore Operations Manager Keith Sellars article “Failure Analysis: A Road Map” is the cover article of this months InCompliance Magazine! Head on over to InCompliance to check it out, then contact us to discuss your most recent challenges and...
Open House – NTS Detroit
June 6, 2016Detroit Open House Come on out to the NTS Detroit open house event and get a first hand look at how our 42,000 square-foot facility can support your next testing program! The Detroit team can help answer your questions regarding...
NTS Chesapeake in Quality Magazine
June 3, 2016Check out the latest issue of Quality Magazine for an article written by Herminso Villarraga-Gomez of Nikon Metrology featuring Chesapeake Testing’s unique 450kV walk-in CT scanning system. Read the full article here: Seeing is Believing: X-ray Computed Tomography for Quality...
NTS offers CAD/FEA Modeling for Direct and Indirect Effects Lightning, Reducing Test Costs and Time
May 24, 2016The NTS Lightning Technologies laboratory in Pittsfield, MA is now offering finite element analysis, allowing the performance of complex simulations that accurately model the interaction of lightning with a variety of aircraft and avionics components for our customers. This service...