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INCH-POUND MIL-STD-398A 29 January 2014 SUPERSEDING MIL-STD-398 5 November 1976 DEPARTMENT OF DEFENSE DESIGN CRITERIA STANDARD SHIELDS, OPERATIONAL FOR AMMUNITION OPERATIONS, CRITERIA FOR DESIGN OF AND TESTS FOR ACCEPTANCE AMSC N/A FSC 4925 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. MIL-STD-398A, dated 29 January 2014, is hereby reinstated and may be used for acquisition. Source: https://assist.dla.mil -- Downloaded: 2026-07-20T01:49Z Check the source to verify that this is the current version before use. MIL-STD-398A ii FOREWORD 1. This military standard is approved for use by all Departments and Agencies of the Department of Defense (DoD). 2. This document does not constitute significant changes from the 6 November 1976 version of the MIL-STD. It re
gnition and initiation sources, protection capabilities of shields, various types of protective clothing, fire protection systems, and the acute and chronic health hazards of vapors and combustion products on exposed personnel. C3.10.3. When the hazard assessment indicates an unacceptable probability of explosion or deflagration, operations or processes shall be conducted remotely. When an analysis of the hazard assessment indicates the hazards associated with an explosion or deflagration are controllable by using operational shields, the contractor shall design, install, and use shields that effectively protect personnel from the hazards. Shields complying with MIL-STD-398 (Reference (h)) are acceptable protection. C3.10.4. The contractor shall test operational shields under conditions th
tables and other workstations requiring use of colored indicators or readability of color maps and symbols. 5.18.3.3 Dim to zero. Operator task lighting (white and red) shall have the capability to dim to zero. 5.18.3.4 Curtains. Curtains or visual barriers shall be provided at points of entry to the bridge to avoid light leakage from internal ship spaces and passages with higher levels of ambient lighting. Source: https://assist.dla.mil -- Downloaded: 2026-07-20T01:48Z Check the source to verify that this is the current version before use. MIL-STD-1472H 398 5.18.3.5 Light leakage from task lighting. Task lighting for operator positions requiring higher ambient or task lighting levels shall be designed and arranged to prevent light leakage and reflectance or glare at other operator positi
nel protection will: 4.18.1.1. Meet the requirements of paragraph 4.17.2.1. 4.18.1.2. Contain or defeat all fragments. 4.18.1.3. Limit thermal flux to “Q” (calories/square centimeter/second) = 0.62t-0.7423 where “t” is the time in seconds that a person is exposed to the radiant heat. NOTE: Shields that comply with MIL-STD-398 provide acceptable protection. Comply with testing requirements of paragraph 4.17.4 or 4.17.5. 4.18.1.4. Limit overpressure levels in personnel-occupied areas to satisfy MIL-STD- 1474D, Noise Limits. 4.18.2. The use of protective shielding must be approved as part of the explosives site plan (see paragraph 14.25.3). AFMAN91-201_MOODYAFBSUP 8 JULY 2015 79 4.18.3. Areas used for intentional detonations meet the requirements of paragraphs 4.18.1.1 through 4.18.1.3 for pr
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