Nonpropagation Test Program for M55 Stab Detonators
Abstract
As part of an Army-wide expansion and modernization program, the safety of M55 detonators at various points within automated inspection equipment was studied using an MRC Corporation prototype. Test results will be used to establish safety criteria for new manufacturing LAP facilities. The program to determine the safety of the equipment was drafted by ARRADCOM and was subsequently divided into six separate phases: input/output transfer tests, intra-tray propagation tests, indexing dial spacing tests, rejected detonator container tests, indexing dial nest integrity tests, and shipping tray integrity tests. Results of these tests indicated that: (1) A maximum of four detonators can ignite simultaneously without rupturing the outer field. (2) A minimum shield height of 50.8 mm is required for complete nonpropagation between detonators within a single tray. (3) The existing machine spacing of 50.0 mm between detonators on the inspection dial is sufficient. (4) The prototype container is safe for storage of 200 to 300 detonators. (5) There was no detonator reaction upon transfer to the dial nests at transfer rates of 13.7 m/ sec. (6) A safe transfer is possible when using the MRC metering valve; the setting on the valve should not exceed the 2.0 setting.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1982
- Accession Number
- ADA118381
Entities
People
- F. L. Mcintyre
- W. M. Stirrat
Organizations
- Computer Sciences Corporation