MIL-S-27626F
3.4 Transportable Pressure Equipment Directive approval. The sampler shall be constructed and certified in accordance with the Transportable Pressure Equipment Directive applicable to equipment of this type that will be shipped interstate by public carrier required by the European Union. However, a UN pressure receptacle acceptable for transport to, from, or within the
United States must be marked with "USA" as a country of approval in conformance with DOT Regulation 49 CFR 178.69 and 178.70.
3.5 Performance.
3.5.1 Sample volume. The sampler shall be capable of providing a gaseous sample with a minimum volume of 100 standard liters (at 70°F and 760 mm Hg.)
3.5.2 Leak test pressure. The sampler shall be capable of being pressurized to 1600 psig with gaseous oxygen without exhibiting leakage.
3.6 Weight. The weight of the sampler and its accessories shall not exceed 40 pounds.
3.7 Finishes and protective coatings.
3.7.1 Surfaces contacting oxygen. All surfaces, parts, fittings, etcetera, of the sampler that will be in contact with high-purity oxygen shall be thoroughly cleaned in accordance with procedures in SAE-ARP1176. No other cleaning, priming, or painting with organic materials shall be
performed on these surfaces.
3.7.2 Exposed parts and surfaces. All exposed metal parts and surfaces, except parts and surfaces that contact high-purity oxygen, shall be cleaned, treated, and finished per Air Force San
Antonio ALC Drawing 7545352, with the exception that no paint or primer is to be applied to components other than the carrying case.
3.8 Operational markings.
3.8.1 Inlet and outlet fittings. The inlet and outlet fittings shall be clearly identified by markings either etched or stenciled directly on the sample bottle.
3.8.2 Instructions. Operating instructions shall be provided on a plate of sheet aluminum or zinc of not less than 0.050 inch thickness, anodized or etched to produce raised markings with a black or other dark color background, and with a border of not less than ¼ inch. The plate shall be attached to the top half of the case by rivets. The plate shall be located on the side of the sampler case so that the instructions can be read when the case is in an upright position.
3.9 Identification of product. Equipment, assemblies, and parts shall be marked for identification in accordance with MIL-STD-130.
3.10 Workmanship. All parts of the sampler shall be fabricated and finished in a workmanlike manner. Particular attention shall be given to the following:
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