Sanitation Standards for Propane to be Used in Food
2013-08-20
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Article 1
The Standards are prescribed in accordance with the provisions of Article 17 of the Act Governing Food Sanitation.
Article 2
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.
Article 3
Propane to be used in food shall comply with t the requirements according to the following standards:
┌──────────┬───────────────────┐
│ Item │ Standards │
├──────────┼───────────────────┤
│Purity │Not less than 95% (v/v) │
├──────────┼───────────────────┤
│Characteristics │Colorless, odourless and flammable gas│
├──────────┼───────────────────┤
│Boiling temperature │-42 ℃ │
├──────────┼───────────────────┤
│Solubility │One volume of water dissolves 0.065 │
│ │volumes at 17.8 ℃ and 753 mmHg; 1 │
│ │volume of anhydrous alcohol dissolves │
│ │7.9 volumes at 16.6 ℃ and 754 mmHg; 1│
│ │volume of ether dissolves 9.26 volumes│
│ │at 16.6 ℃ and 757 mmHg; 1 volume of │
│ │chloroform dissolves 12.99 volumes at │
│ │21.6℃ and 757 mmHg. │
├──────────┼───────────────────┤
│Infrared absorption │The spectrum of a sample exhibits │
│spectrum │at approximately 3.4μm(vs),6.8μm(s),│
│ │and 7.2μm(m). │
├──────────┼───────────────────┤
│Moisture content │Not exceed 0.005 % │
├──────────┼───────────────────┤
│High-boiling residue│Not exceed 5 mg/kg │
├──────────┼───────────────────┤
│Acidity of │Add 10 mL of water to the sample, mix │
│high-boiling residue│by swirling for about 30 s, add 2 │
│ │drops of methyl orange TS, insert the │
│ │stopper in the tube, and shake the │
│ │tube vigorously. No pink or red color │
│ │appears in the aqueous layer. │
├──────────┼───────────────────┤
│Sulfur compounds │The gas is free from the │
│analysis │characteristic odor of sulfur │
│ │compounds. │
└──────────┴───────────────────┘
│ Item │ Standards │
├──────────┼───────────────────┤
│Purity │Not less than 95% (v/v) │
├──────────┼───────────────────┤
│Characteristics │Colorless, odourless and flammable gas│
├──────────┼───────────────────┤
│Boiling temperature │-42 ℃ │
├──────────┼───────────────────┤
│Solubility │One volume of water dissolves 0.065 │
│ │volumes at 17.8 ℃ and 753 mmHg; 1 │
│ │volume of anhydrous alcohol dissolves │
│ │7.9 volumes at 16.6 ℃ and 754 mmHg; 1│
│ │volume of ether dissolves 9.26 volumes│
│ │at 16.6 ℃ and 757 mmHg; 1 volume of │
│ │chloroform dissolves 12.99 volumes at │
│ │21.6℃ and 757 mmHg. │
├──────────┼───────────────────┤
│Infrared absorption │The spectrum of a sample exhibits │
│spectrum │at approximately 3.4μm(vs),6.8μm(s),│
│ │and 7.2μm(m). │
├──────────┼───────────────────┤
│Moisture content │Not exceed 0.005 % │
├──────────┼───────────────────┤
│High-boiling residue│Not exceed 5 mg/kg │
├──────────┼───────────────────┤
│Acidity of │Add 10 mL of water to the sample, mix │
│high-boiling residue│by swirling for about 30 s, add 2 │
│ │drops of methyl orange TS, insert the │
│ │stopper in the tube, and shake the │
│ │tube vigorously. No pink or red color │
│ │appears in the aqueous layer. │
├──────────┼───────────────────┤
│Sulfur compounds │The gas is free from the │
│analysis │characteristic odor of sulfur │
│ │compounds. │
└──────────┴───────────────────┘
Article 4
The Standards shall be implemented on the date of promulgation.