10. Apparatus (Automated Instrument)
10.1 An automated flash point instrument is used that is capable of performing the test in accordance with Section 9. The apparatus can use a gas test flame or electric ignitor. The dimensions for the test cup and test cover are shown in Fig. A1.1 and Fig. A1.2.
10.2 Samples with low flash point may require a source of cooling for the heating area.
11. Preparation of Apparatus (Automated Instrument)
11.1 Support the automated apparatus on a level, steady surface, such as a table. Unless tests are made in a draft-free compartment, it is a good practice, but not required, to surround the tester with a shield to prevent draft.
11.2 The user of the automatic instrument must be sure that all of the manufacturer's instructions for calibrating, checking, and operating the equipment are followed.
11.2.1 Adjust the detection system per manufacturer's instructions.
11.2.2 Calibrate the temperature measuring device per manufacturer's instructions.
11.2.3 Verify the performance of the automated apparatus at least once per year by determining the flash point of a certified reference material (CRM) such as those listed in Annex A2, which is reasonably close to the expected temperature range of the samples to be tested. The material shall be tested according to the procedure of this test method and the observed flash point obtained in 9.5 shall be corrected for barometric pressure (see Section 13). The flash point obtained shall be within the limits stated in Table A2.1 for the identified CRM or within the limits calculated for an unlisted CRM (see Annex A2).
11.2.4 Once the performance of the apparatus has been verified, the flash point of secondary working standards (SWSs) can be determined along with their control limits. These secondary materials can then be utilized for more frequent performance checks (see Annex A2).
11.2.5 When the flash point obtained is not within the limits stated in 11.2.3 or 11.2.4, check the condition and operation of the apparatus to ensure conformity with the details listed in Annex A1, especially with regard to tightness of the lid (see A1.1.3), the action of the shutter, the position of the ignition source (see A1.1.3.3), and the angle and position of the temperature measuring device (see A1.1.3.4). After any adjustment, repeat the test in 11.2.3 using fresh test specimen, with special attention to the procedural details prescribed in the test method.
