MIL STD 810 H Has Made Important Changes

mil std 810 h

MIL-STD-810 H Places Added Requirements on Product Developers and Test Labs.

MIL-STD-810 H was released in 2019.  This revision not only included major alterations and in many cases complete rewrites of test methods and procedures but also revised requirements that effect the manner in which all testing must be conducted.  These requirements effect both test laboratories and product developers conducting this important developmental test and evaluation.

Revisions Reflect Growing Concern for Test Performance

While many of the revisions have been made to address technological advances in dynamic test evaluation methods (vibration, and shock), others have been the result of increased emphasis on changes made in the past.  These changes include data collection of operational test monitoring, increased call out for use of upper and lower supply voltages, and limitations to scheduled test interruptions.

A great deal of emphasis has been placed on performing testing in operational modes (testing while the unit under test is powered up) in previous revisions.  These additional requirements serve to more closely replicate anticipated operational environments and capture any intermittent failures or unexpected behaviors of the tested item.

Another significant change in MIL-STD-810 H that effects many methods concerns definitions of temperature change.  Under the new revision the rate of temperature change shall not exceed 5°F (3°C) per minute to prevent thermal shock.  Meanwhile for simulation of thermal shock conditions, the temperature change rate should be greater than 18°F (10°C) per minute.   While these changes may seem minor, test program documentation such as Detailed Environmental Test Plans (DETPs) and Environmental Test Reports (ETRs) should be updated to reflect requirements.

Changes to Methods

Many of the 29 methods that are part of MIL-STD-810 H have been completely revised.  These include Method 510.7 Sand and Dust.  Other sections like Method 504.3 Contamination by Fluids have undergone major changes that resulted in the deletion of one of the procedures.  Method 514.8 Vibration has vastly changed contents of the annexes that define test characteristics.

Staying Current About MIL-STD-810 H

Keeping up to date with the changes in MIL-STD-810 H is important for lab personnel and product developers.  CVG Strategy can help with our Understanding MIL-STD-810 classes.  This two day course is available onsite or by way of webinar.  We also offer a variety of  to assist you in your product test and evaluation program.

 

Jamie Hamilton

Jamie Hamilton

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