| Standardization field | Non-metallic materials | 
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| Technical committee | BAS/TC 11- Petroleum and petroleum products | 
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| Term (EN) | relative density of gases | 
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| Definition (EN) | ratio of the mass of a given volume of gas at temperature
t and pressure p to the mass of an equal valume of dry
air at t and p; or alternatively the ratio of the density of
the gas at t and p to the density of dry air at t and p
NOTE The values of t and p are specified typically as 0
°C and 101,325 kPa (15 °C is specified for t1 in same
countries). | 
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| Term (FR) |  | 
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| Definition (FR) |  | 
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| Term (DE) |  | 
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| Definition (DE) |  | 
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| Term (BS) | relativna gustoća plinova | 
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| Definition (BS) | omjer mase dane zapremine plina na temperaturi t i
pritisku p prema masi jednake zapremine suhog
zraka na t i p; ili omjer gustoće plina na t i p prema
gustoći suhog zraka na t i p
NAPOMENA Vrijednosti t i p obično iznose 0 °C i 101.325
kPa (15 °C se u nekim zemljama specificira kao t1). | 
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| Term (HR) |  | 
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| Definition (HR) |  | 
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| Term (SR) |  | 
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| Definition (SR) |  | 
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| Date | 2016-02-29 | 
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| Standards | BAS ISO 1998-2:2000 | 
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