GB 29202-2012 PDF English
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB 29202-2012 | 90 | Add to Cart | Auto, 9 seconds. | Food Additives -- Nitrogen [including 2016 Modification 1] | Valid |
GB 29202-2012: Food Additives -- Nitrogen [including 2016 Modification 1]
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB29202-2012GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA National Food Safety Standard – Food Additives – Nitrogen Issued on. DECEMBER 25, 2012 Implemented on. JANUARY 25, 2013 Issued by. National Health and Family Planning Commission of the People’s Republic of China
Table of Contents
1 Application Scope... 3 2 Molecular Formula and Relative Molecular Mass... 3 3 Technical Requirements... 3 Annex A Test Method... 5 No.1 Amendment... 7 National Food Safety Standard – Food Additives – Nitrogen1 Application Scope
This Standard applies to food additive nitrogen produced by deep cooling air separation, pressure swing absorption, membrane separation and small special nitrogen making machine.2 Molecular Formula and Relative Molecular Mass
2.1 Molecular formula N2 2.2 Relative molecular mass 28.01 (in accordance with International Relative Atomic Masses 2007)3 Technical Requirements
3.1 Sensory requirements As specified in Table 1.Annex A
Test Method A.1 Warning A high-pressure gas cylinder is used in the test method of this Standard, so appropriate safety and protection measures shall be taken. A.2 Identification test Insert a small wood stick ignited carefully into a test tube filled with test gas; the flame extinguishes. A.4 Determination of oxygen (O2) A.4.1 Electrochemical process A.4.2 Zirconia detector gas chromatographic method A.4.2.1 Method summary Use the zirconia solid battery as the detector of gas chromatography. The component oxygen to be tested in the sample enters into the detector after separation by the chromatographic column and generates corresponding chromatographic peak signals. And then use the external standard method for quantitative determination. A.4.2.2 Apparatus Gas chromatograph. as specified in HG/T 2686. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
