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Sanitation Standards for Propane to be Used in Food
1.中華民國九十七年八月十二日行政院衛生署衛署食字第 0970404346 號 令訂定發布全文 4 條；並自發布日施行 2.中華民國一百零二年八月二十日衛生福利部部授食字第 1021350146 號 令修正發布第 1 條條文
資料來源：全國法規資料庫（ChOrder.json，版本 2026/7/24 上午 12:00:00）・政府資料開放授權
The Standards are prescribed in accordance with the provisions of Article 17 of the Act Governing Food Sanitation.
The name of the chemical is propane, CAS Reg. No. 74-98-6, the formula of the chemical is indicated as C3H8, and its molecular weight is 44.10.
1Propane to be used in food shall comply with t the requirements according to the following standards:
2┌──────────┬───────────────────┐
3│ Item │ Standards │
4├──────────┼───────────────────┤
5│Purity │Not less than 95% (v/v) │
6├──────────┼───────────────────┤
7│Characteristics │Colorless, odourless and flammable gas│
8├──────────┼───────────────────┤
9│Boiling temperature │-42 ℃ │
10├──────────┼───────────────────┤
11│Solubility │One volume of water dissolves 0.065 │
12│ │volumes at 17.8 ℃ and 753 mmHg; 1 │
13│ │volume of anhydrous alcohol dissolves │
14│ │7.9 volumes at 16.6 ℃ and 754 mmHg; 1│
15│ │volume of ether dissolves 9.26 volumes│
16│ │at 16.6 ℃ and 757 mmHg; 1 volume of │
17│ │chloroform dissolves 12.99 volumes at │
18│ │21.6℃ and 757 mmHg. │
19├──────────┼───────────────────┤
20│Infrared absorption │The spectrum of a sample exhibits │
21│spectrum │at approximately 3.4μm(vs),6.8μm(s),│
22│ │and 7.2μm(m). │
23├──────────┼───────────────────┤
24│Moisture content │Not exceed 0.005 % │
25├──────────┼───────────────────┤
26│High-boiling residue│Not exceed 5 mg/kg │
27├──────────┼───────────────────┤
28│Acidity of │Add 10 mL of water to the sample, mix │
29│high-boiling residue│by swirling for about 30 s, add 2 │
30│ │drops of methyl orange TS, insert the │
31│ │stopper in the tube, and shake the │
32│ │tube vigorously. No pink or red color │
33│ │appears in the aqueous layer. │
34├──────────┼───────────────────┤
35│Sulfur compounds │The gas is free from the │
36│analysis │characteristic odor of sulfur │
37│ │compounds. │
38└──────────┴───────────────────┘
The Standards shall be implemented on the date of promulgation.