Downloaded from https://www.everyspec.com MIL-STD-2031(SH) to the extent specified herein. Unless othewise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DC)DISS cited in the solicitation. Unless other- wise ~pccilicd, the issues 01 dc)cumcnts no[ Iis[cd III LIIC I) C) DISS arc [he issues of the documcnls cited in the solicitation. 20.2 Non-Government publications.
The following document(s) form a part of this document AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 1929 Standard Test Method for Ignition Properties of Plastics; (DOD adopted) (Application for copies should be addressed to the Ameriean Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 30. EQUIPMENT 30.1 Combustion system.
A furnace with a controller capable of operating up to 800 (1470 ~ and controlled to plus or minus 10 (*20 G F) is required as shown in figure 5. The fumaee shall be cxmnected to the bottom of Ihe exposure chamber under a stainless steel plate that contains a cooling mil through which cold wa~er shall cent-y run during the experiment (figure 6). Figure 7 shows the cnrpmure chamber design whh furnau attached. A quartz 1000- ml beaker, 9 cm inside diameter (id) by 15 cm high+ is used to hold the materialaampla beaker with material to be tested shall be inserted into the fuma~ after the furnace h= been connected to the exposure chamber. 30.2 Chemical analysis.
Instruments capable of obtaining continuous measurements for 02 C02, and CO shall bc used. A non-dispersive infrared (IR) technique is suggested for CO and C02. 30.2.1 Range of measurement. For carbon monoxide the specific instrument shall measure a range of O-1 percent (1 pereent equals 10,000 p/m) with an aecuraey of 0.01 pereent (100 p/m). For carbon dioxide the specific instrument shall measure a range of 0-10 percent with an aeeuraey of 0.15 pereent (1,500 p/m). For the oxygen measurements, an instrument operating on the paramagnetic principle shall be used. The instrument shall measure a range of O-25 pereent with an aecuraey of 0.1 percent.
A non-continuous gas chromatographic sampling teehnique shall be used as alternative equipment as long as the same sampling aecuraey for each gas is maintained. The measurements shall be made every two to three minutes. 32