ISO 16334:2013 pdf free
ISO 16334:2013 pdf free.Monolithic refractory products – Determination of resistance to explosive spalling
The test specimen shall be prepared in accordance with ISO 1927-5, using the mould as described in 5.1.If information about transition-point temperature is required, a wire thermocouple shall be cast in situinto the centre of the test specimen. The test specimen dimensions shall be 80 mm diameter by 80 mm height, with each dimension accurate to 1 mm. Following casting, the test specimen shall be prevented from drying prior to testing by placing in a sealed plastic bag, or by other means as agreed between the interested parties. The curing temperature is 20 °C to 25 °C.
The procedure shall be as follows:
a) Prepare sufficient test specimens in accordance with Clause 6. The curing temperature is the subject of agreement between the interested parties. The specimens shall be tested as soon as practicable after a minimum of 24 h curing. Curing time should not exceed 28 h.
b) Heat the kiln (5.5) to 600°C or to a higher temperature if agreed between the parties.The kiln shall be capable of restoring the kiln temperature to the required test temperature to within 5 °C, within 5 min after the test specimen is placed in the kiln. Soaking the kiln for 30 min at temperature prior to testing may assist with meeting this requirement.
c) Place an untested specimen inside the explosion-proof cage (5.4), oriented as-cast, and secure the cage door opening. If a temperature recorder is being used, connect the thermocouple to the recorder.
d) Place the cage inside the kiln and start the timer (5.6) (and the specimen temperature recorder, if a specimen thermocouple is used).
e) Record the time(s) at which any explosions are heard.
f) Leave the cage inside the kiln for 20 min as a safety precaution. After 20 min have elapsed, remove the cage from the kiln.
g) Remove the test specimen from the cage and record the condition of the specimen according to the following classification:
1) No damage: no damage to test specimen.
2) Damage: the sample is cracked or has sustained minor surface damage (popouts < 15 mm diameter)
3) Catastrophic damage: damage exceeding that described in item g) 2).ISO 16334 pdf download.
