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GB 4789.4-2024 English PDF (GB4789.4-2024)

GB 4789.4-2024 English PDF (GB4789.4-2024)

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GB 4789.4-2024: National Food Safety Standards--Food Microbiological Testing--Salmonella Testing
This Standard specifies the test methods for Salmonella in food. This Standard applies to the detection of Salmonella in food. 2 Equipment and Materials In addition to the routine sterilization and culture equipment of the microbiology laboratory, other equipment and materials are as follows. 2.1 Refrigerator: 2¡æ~8¡æ. 2.2 Constant temperature incubator: 36¡æ¡À1¡æ, constant temperature device: 42¡æ¡À1¡æ, 48¡æ¡À2¡æ. 2.3 Homogenizer. 2.4 Oscillators. 2.5 Balance: with sensitivity of 0.1g. 2.6 Sterile Erlenmeyer flask: with capacity of 500mL, 250mL. 2.7 Sterile graduated cylinder: with capacity of 50mL. 2.8 Sterile homogenization cups and sterile homogenization bags. 2.9 Sterile wide-mouth bottle: with capacity of 500mL. 2.10 Sterile pipette: 1mL (with scale of 0.01mL), 10mL (with scale of 0.1mL) or micropipette and tip. 2.11 Sterile petri dishes: with diameter of 60mm, 90mm. 2.12 Sterile test tube: 10mm¡Á75mm, 15mm¡Á150mm, 18mm¡Á180mm or other suitable specifications. GB 4789.4-2024 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 5 of 32 2.13 Sterile glass tube: 3mm¡Á50mm. 2.14 Sterile inoculation loop: 10¦ÌL (diameter about 3mm), 1¦ÌL and inoculation needle. 2.15 pH meter or precision pH test paper. 2.16 Microbial biochemical identification system. 2.17 Biological safety cabin

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