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SN/T 1559.2-2005 English PDF

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SN/T 1559.2-2005: Protocol of indirect immunofluorescent assay for African swine fever
Status: Obsolete
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Standard similar to SN/T 1559.2-2005

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Basic data

Standard ID SN/T 1559.2-2005 (SN/T1559.2-2005)
Description (Translated English) Protocol of indirect immunofluorescent assay for African swine fever
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard B41
Classification of International Standard 11.220
Word Count Estimation 6,661
Date of Issue 2005-02-17
Date of Implementation 2005-07-01
Regulation (derived from) Industry standard filing Notice No. 4 of 2005 (No. 64 overall); National Quality recognize [2010] 98; industry standard filing Notice No. 5 of 2010 (No. 125 overall)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard specifies: indirect immunofluorescence antibody test for detection of African swine fever Method, This standard applies to: African swine fever antibodies Detection,

SN/T 1559.2-2005: Protocol of indirect immunofluorescent assay for African swine fever

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Protocol of indirect immunofluorescent assay for African swine fever Book of the People's Republic of China Entry and Exit Inspection and Quarantine African piglet indirect immunofluorescence test protocol Released on.2005-02-17 2005-07-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard refers to the Diagnostic Test and Vaccine Standards Manual (2004 edition) published by the International Organization of Animal Health (OIE) on Africa. Indirect immunofluorescent antibody test method for diagnosis of swine fever. Appendix A of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China is responsible for drafting. The main drafters of this standard. Liu Zhongyong, Zhou Zhongfang, Xu Rusu, You Hong. This standard is the first industry standard for entry-exit inspection and quarantine. African piglet indirect immunofluorescence test protocol

1 Scope

This standard specifies the method for detecting antibodies to African swine fever by indirect immunofluorescence assay. This standard applies to the detection of antibodies to African swine fever.

2 Instruments and equipment

2.1 Fluorescence microscope. 2.2 Invert the microscope. 2.3 Carbon dioxide incubator and ordinary constant temperature incubator. 2.4 Refrigerator.

3 test materials

3.1 African swine fever standard strain. 3.2 African swine fever standard negative serum and positive serum. 3.3 Anti-porcine fluorescent antibodies. 3.4 PK-15 cells (porcine kidney cells) or Vero cells (African green monkey kidney cells). 3.5 fetal bovine serum. 3.6 Tested serum. inactivated at 56 ° C for 30 min. 3.7 Distilled water (pH 7.4), see Appendix A for preparation. 3.8 Cell base medium, cell growth medium and cell maintenance solution. For the preparation method, see Appendix A. 3.9 0.01mol/L pH7.4PBS (phosphate buffer), see Appendix A for the preparation method. 3.10 Buffered glycerol. Prepared using neutral, non-autofluorescent glycerol (analytical grade). See Appendix A for preparation. 3.11 Acetone. Pre-cooled using a front-loading refrigerator.

4 method of operation

4.1 Virus culture PK-15 cells or Vero cells are cultured with cell growth medium. After the cells are grown into a single layer, the culture solution is discarded and the standard for African piglets is added. The strain makes the virus liquid completely cover the cells. Adsorbed in a 37 ° C 5% carbon dioxide incubator for 0.5 h ~ 2 h, discard the virus solution, and exchange Fresh cell maintenance solution, placed in a 37 ° C 5% carbon dioxide incubator, observed daily, more than 50% of cells appear CPE (cytopathic Change) when harvesting. Cells that were not infected with the virus were cultured at the same time and used for comparison. 4.2 Preparation of antigen tablets Harvest the harvested African swine fever virus infected cells into a cell suspension with a concentration of 5×105/mL, drop 2~3 drops on the glass slide, and apply A uniform sheet was formed, and it was naturally air-dried at room temperature, and fixed with pre-cooled acetone for 10 minutes to prepare an antigen sheet. Store at -20 °C. 4.3 Preparing cell pairs for photos Cell-pair photographs were prepared as described in Section 4.2 of PK-15 cells or Vero cells grown into cell monolayers. 4.4 Sample loading After the test serum was diluted 1.10 with PBS, an appropriate amount was added to the antigen sheet and the cell pair photograph to prepare the specimen to be inspected and finely Cell control specimens. The specimen was placed in a wet box and incubated in a 37 ° C incubator for 1 h.

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