Regulations and standards

Food grade Alcohol standard (GB10343-2008)

Sensory requirement

Item	Superfine	Fine-quality	Ordinary
Sight	Clear and bright.
Smell	Only with ethanol smell,without strange smell.		No strange smell.
Taste	Pure,a bit sweet.	Pure,a bit sweet.	Comparatively pure.

Chemical requirement

Item	Superfine	Fine-quality	Ordinary
Color≤	10
Ethanol % (v/v) ≥	96.0	95.5	95.0
H₂SO₄ test≤	10	10	60
Oxidation time/min.≥	40	30	20
Aldehyde(Acetic aldehyde) mg/L ≤	1	2	30
Methanol mg/L ≤	2	50	150
Propanol mg/L ≤	2	15	100
Butanol + Iso-amyl alcohol mg/L≤	1	2	30
Acid (Acetic acid)mg/L≤	7	10	20
Ester (Ethyl acetate)mg/L≤	10	18	25
Nonvolatile substances mg/L≤	10	15	25
Heavy metal (Pb)mg/L≤	1
Cyanide* (HCN)1) mg/L≤	5
*For cassava-based products.

Standard of absolute ethanol (GB/T678——2002)

Name	Guarantee reagent	Analytical reagent	Chemical reagent
Mass percent of ethanol （CH3CH2OH）/%	≥99.8	≥99.7	≥99.5
Density(20℃)/ （g/mL）	0.789～0.791	0.789～0.791	0.789～0.791
Tested by mixing with water.	Acceptable.	Acceptable.	Acceptable.
Mass percent of evaporites/%	≤0.0005	≤0.001	≤0.001
Acidity（H＋）/ （mmol/100g）	≤0.02	≤0.04	≤0.1
Basicity（OH－）/ （mmol/100g）	≤0.005	≤0.01	≤0.03
Mass percent of moisture/%	≤0.2	≤0.3	≤0.5
Mass percent of methanol（CH3OH）/%	≤0.02	≤0.05	≤0.2
Mass percent of 2-propanol ［（CH3）2CHOH］/%	≤0.003	≤0.01	≤0.05
Mass percent of carbonyl compound （CO）/%	≤0.003	≤0.003	≤0.005
Easy carbonating matters	Qualified	Qualified	Qualified
Mass percent of ferrum/%	≤0.00001	——	——
Mass percent of zinc/%	≤0.00001	——	——
Mass percent of deoxidizing KMnO4 matters（Ｏ）/%	≤0.00025	≤0.00025	≤0.0006

Standard for liquid CO2 of food grade（GB10621-2006）

No.	Item	Index
1	Volume fraction of CO2 content (10-2)	≥99.9
2	Volume fraction of moisture (10-6)	≤20
3	Acidity	Acceptance check according to 5.4
4	Volume fraction of nitrogen oxide (10-6)	≤2.5
5	Volume fraction of nitrogen dioxide (10-6)	≤2.5
6	Volume fraction of sulfur dioxide (10-6)	≤1.0
7	Volume fraction of total sulfur (calculate according to sulfur, exclude sulfur dioxide) (10-6)	≤0.1
8	Volume fraction of total hydrocarbon (calculate according to methane) (10-6)	≤50 (Thereinto nonmethane hydrocarbons is less than 20)
9	Volume fraction of benzene (10-6)	≤0.02
10	Volume fraction of methanol (10-6)	≤10
11	Volume fraction of ethanol (10-6)	≤10
12	Volume fraction of aldehyde (10-6)	≤0.2
13	Volume fraction of other oxy-organics (10-6)	≤1.0
14	Volume fraction of Chloroethylene (10-6)	≤0.3
15	Mass fraction of axunge (10-6)	≤5
16	Odor, taste and aspect of aqueous solution	Inspect to qualified according to 5.10
17	Mass fraction of evaporation residue (10-6)	≤10
18	Volume fraction of oxygen (10-6)	≤30
19	Volume fraction of carbon monoxide (10-6)	≤10
20	Volume fraction of ammonia (10-6)	≤2.5
21	Volume fraction of phosphine (10-6)	≤0.3
22	Volume fraction of hydrogen cyanide (10-6)	≤0.5
Remarks: other oxy-organics include dimethyl ether, epoxy ethane, acetone, n-propanol, isopropanol, n-butyl alcohol, isobutanol, ethyl acetate and isoamyl acetate.

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