LPG瓶裝氣是居民的重要生活用氣,為了保障居民用氣的安全,一旦發(fā)生燃?xì)庑孤?能夠及時發(fā)現(xiàn)或警示,國家標(biāo)準(zhǔn)中規(guī)定LPG瓶裝氣必須加臭。根據(jù)CJJT 148-2010《城鎮(zhèn)燃?xì)饧映艏夹g(shù)規(guī)程》,加臭劑四氫噻吩、無硫加臭劑、乙硫醇引起警示作用的最小檢出量分別為19mg/Nm3、16.7mg/Nm3、7.1mg/Nm3。目前,國內(nèi)在LPG瓶裝氣中使用四氫噻吩作為加臭劑。
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浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司，采用氣相色譜法，研制出毛細(xì)管柱，填充柱，微徑柱來測定天然氣中四氫噻吩的含量，滿足不同儀器用戶的選擇，效率高。
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1.微徑柱：外徑2mm，1/16,? 1.6? 內(nèi)徑0.75mm,? ? 1mm
2.填充柱：*1/8，*3；*4
3.毛細(xì)管柱：10m，8m，4m，內(nèi)徑0.10,0.20,0.32,0.53
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LPG bottled gas is an important household gas for residents. In order to ensure the safety of gas consumption for residents, once a gas leak occurs, it can be detected or warned in a timely manner. The national standard stipulates that LPG bottled gas must be odorized. According to CJJT 148-2010 "Technical Regulations for Odorization of Urban Gas", the minimum detectable levels of warning effects caused by odorants tetrahydrothiophene, sulfur free odorants, and ethanethiol are 19mg/Nm3, 16.7mg/Nm3, and 7.1mg/Nm3, respectively. At present, tetrahydrothiophene is used as an odorant in LPG bottled gas in China.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed capillary columns, packed columns, and micro diameter columns using gas chromatography to determine the content of tetrahydrothiophene in natural gas, meeting the needs of different instrument users with high efficiency.
1. Micro diameter column: outer diameter 2mm, 1/16, 1.6 inner diameter 0.75mm, 1mm
2. Fill columns: * 1/8, * 3* four
3. Capillary columns: 10m, 8m, 4m, inner diameters of 0.10, 0.20, 0.32, 0.53
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