Arsenic test procedures

The selection process was initiated by a local announcement that a team from Edgewood Arsenal was coming to describe their research program. Higher authorities ordered commanders to set aside suffrcient time at the Post auditorium for would-be volunteers to complete applications, but only if they wished. From 500-1,000 curious soldiers usually showed up. An Edgewood physician would be there to tell the story of our program and show a movie of the facility and testing procedures. After that, those who were interested completed the required forms. 

It was found that the two samples could not be detonated by any of the std test procedures used at Picatinny Arsenal. The lead salts were non-hygroscopic and possessed the same order of stability as TNT in the 120° Vacuum Stability Test. Because of their insensitivity to initiation, these Pb salts were considered to be unsuitable for practical military applications (Ref)... 

Run-Down Method. A statistical testing procedure developed at Frankford Arsenal, Philadelphia (Ref 1) which produces a more complete frequency and probability of reaction curve than the Bruceton, up-and-down, or staircase methods (see under Impact, Initiation of Explosion by in Vol 7, 136-R to I37-L). Although a larger number of tests is used than in the latter procedures, the method makes possible a better evaluation of the distribution of the population. Starting at a level expected to be between 0%... 

For the Test Preparation, 35 ml of the water from one Type I glass container or, in the case of smaller containers, 35 ml of the combined contents of several Type I glass containers is used and prepared as directed for Procedure under Water Attack at 121°C and the procedure described for arsenic test in USP 29-NF 24 general chapter <211> Arsenic is then followed. The limit provided for this test is 0.1 ppm. ... 

Biological responses are typically dependent on a number of test parameters Including state of the tested material (solid or In solution), solvent, organism and test procedure. Since test results are dependent on these variables. It Is advantageous to associate testing conditions with an Intended application. Much of our research with polymers containing tin, antimony and arsenic Is associated with control of mildew and rot for eventual application In topical medications, as thermal Insulation and as additives In paints, textiles and paper products. 

The lethal testing program at Edgewood Arsenal during the past two decades has compiled an enviable record for safety. The testing procedures that have been evolved are clearly effective in minimizing danger to base personnel and civilians in adjacent areas. 165(pl6>... 

A waste is toxic under 40 CFR Part 261 if the extract from a sample of the waste exceeds specified limits for any one of eight elements and five pesticides (arsenic, barium, cadmium, chromium, lead, mercury, selenium, silver, endrin, methoxychlor, toxaphene, 2,4-D and 2,4,5-TP Silvex using extraction procedure (EP) toxicity test methods. Note that this narrow definition of toxicity relates to whether a waste is defined as hazardous for regulatory purposes in the context of this chapter, toxicity has a broader meaning because most deep-well-injected wastes have properties that can be toxic to living organisms. 

A.J. Clear, "Standard Laboratory Procedures for Determining Sensitivity, Brisance and Stability of Explosives", PATR 3278 (Dec 1965) [Superseding PATR FRL-TR-25 (l )6l] Impact Test with Picatinny Arsenal Apparatus (pp 2-4 and Figs 1, 2, 3 4, pp 32-35) Impact Test with US Bureau of Mines Apparatus (pp 4-7 and Figs 5, 6 7, pp... 

The procedure employed at the Physical Research Lab of Picatinny Arsenal, using bombs especially designed for testing explosives and propellants by the Parr Instrument Co of Moline, 111 (Ref 26a), has been as follows ... 

A.R. Lusardi, "A Manual of Laboratory Procedures for the Analysis and Testing of Explosives and Pyrotechnics , Picatinny Arsenal, Dover, NJ, Sections 100 200... 

Dynamite, Military, Low Velocity (LVD), developed at Plcatinny Arsenal by B. Voigt, is described here under DYNAMITES, Class X and in PATR 1740, which was superseded by AMCP 706-177(1967), pp 22—24. It. was never standardized nor manufactured. Therefore, no Specification was issued Dynamite (Military), Ml, known as MVD (Medium Velocity Dynamite). Its requirements, physical tests, and analytical procedures are covered by Specification MIL-D-45413 A (MU)... 

More consistent results than some obtained with the B of M machines are obtd with an apparatus used for many years at Picatinny Arsenal(Refs 4,13,15 16). With this machine, known as Picatinny Arsenal Impact Apparatus, samples are tested under confinement aed results are reported In inches. The usual weight hammer is 2 kg for HE s and smaller wts of 1 lbor 8 ox for initiating expls. Fora description of apparatus and procedure, see Refs 13.15 16... 

For a trace element concentration to be certified by NBS, it must be determined by at least two independent methods, the results of which must agree within a small experimental error range of 1% to 10%, depending on the nature of the sample and the concentration level of the element. Such accuracy in determining some trace elements for certification of coal SRM is achieved most easily by NAA with radiochemical separation. Scientists at NBS have extensively tested a neutron activation method that involves a combustion separation procedure on coal as well as on several other matrices to be certified as standard reference materials. The procedures they have thus developed to determine mercury (12), selenium (13), and arsenic, zinc, and cadmium (14) are outlined in a following section on methods for determining specific elements in coal. 

The Clean Air Act of 1990 has made trace metal content in fuels and wastes the final ash-related compositional characteristic of significance. Considerable attention is paid (ca 1993) to emissions of such metals as arsenic, cadmium, chromium, lead, mercury, silver, and zinc. The concentration of these metals in both grate ash and flyash is of significance as a result of federal and state requirements of particular importance is the mobility of metals. This mobility, and the consequent toxicity of the ash product, is determined by the Toxic Characteristic Leaching Procedure (tclp) test. Tables 8—10 present trace metal contents for wood wastes and agricultural wastes, municipal waste, and refuse-derived fuel, respectively. In Table 8, the specific concentration of various components in the RDF governs the expected average concentration of trace metals. 

During WWII, when many foreign expls were found in the field by US Ordnance personnel, it became evident that a simple, rapid method of testing should be developed. On the request of Delaware Ordnance Depot a simple procedure was developed in 1944 at Picatinny Arsenal (Ref 10a) and this procedure was taken as a basis of work conducted under Shriner for NDRC (Ref 14)... 

Decontaminated ton containers are sent to the Rock Island Arsenal for smelting and reclamation. The 6,260 lbs/day of biosolids filter cake is sent to an off-site disposal facility. Spent activated carbon from the various filters, estimated to be generated at a rate of 600 lbs/day, will be tested for 3X surety and sent to the same contractor that takes other carbon filter material from facilities at Aberdeen Proving Ground. Demilitarization protective ensembles, which are at the 3X level after normal decontamination procedures, will be placed in 55 gallon drums, stored in a solid waste storage area, and then shipped off site. 

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