Download or read book GB 31604 1 2023 Translated English of Chinese Standard GB 31604 1 2023 GB31604 1 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-01-27 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the terms and definitions, basic requirements, selection of food simulants, selection of migration testing conditions, screening methods, chemical solvent substitution test, migration testing result correction and migration testing result selection of various food contact materials and products. 2 Terms and definitions 2.1 Migration testing Migration testing refers to a test conducted under specified conditions to determine the amount of migration of components of food contact materials and products into test medium such as food or food simulants in contact with them. Migration testing includes specific migration testing, total migration testing and chemical solvent substitution test. 2.2 Food simulant Food simulant is a test medium used to simulate food for migration testing. It can closely reflect the migration of components in food contact materials and products into the food in contact with them, and has the typical common characteristics of certain types of food. 2.3 Screening method It is a method that uses the amount used, total migration amount or residue amount to screen for specific migration (total) amount, so as to verify the compliance of a specific migration (total) amount of a certain (category) substance in food contact materials and products. 2.4 Chemical solvent substitution test A migration testing conducted under specified conditions using chemical solvents to replace oily food simulants. 2.5 Reusable food contact materials and products Food contact materials and products that have been or are expected to be used multiple times and come into repeated contact with food. GB 31604.1-2023 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 5 of 19 3 Basic requirements 3.1 To measure the total migration amount of food contact materials and products, food simulants shall be selected and migration testing shall be conducted in accordance with the provisions of this Standard. 3.2 Regarding the determination of the specif...
Download or read book GB 31604 57 2023 Translated English of Chinese Standard GB 31604 57 2023 GB31604 57 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-08 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the methods for the determination of migration of eight benzophenone substances in food contact materials and products. Method 1 - liquid chromatography is applicable to the determination of migration of (2-hydroxy-4-methoxyphenyl) (2-hydroxyphenyl) ketone, 2,4-dihydroxybenzophenone, (2-hydroxy-4-methoxyphenyl) phenyl ketone, 4-4?-dihydroxybenzophenone, 2-hydroxy-4-n-octoxy-benzophenone, 2-hydroxy-4-n-hexyloxy-benzophenone, benzophenone and 4-4?-difluoro-benzophenone in plastics, paints and coatings, rubber, and food contact materials and products using inks in water, 4% (volume fraction) acetic acid, 10% (volume fraction) ethanol, 20% (volume fraction) ethanol, 50% (volume fraction) ethanol food simulants, as well as chemical alternative solvents - 95% (volume fraction) ethanol and isooctane. Method 2 - liquid chromatography - tandem mass spectrometry is applicable to the determination of migration of (2-hydroxy-4-methoxyphenyl) (2-hydroxyphenyl) ketone, 2,4-dihydroxybenzophenone, (2-hydroxy-4-methoxyphenyl) phenyl ketone, 4-4?-dihydroxybenzophenone, 2-hydroxy-4-n-octoxy-benzophenone, 2-hydroxy-4-n-hexyloxy-benzophenone, benzophenone and 4-4?-difluoro-benzophenone in plastics, paints and coatings, rubber, and food contact materials and products using inks in water, 4% (volume fraction) acetic acid, 10% (volume fraction) ethanol, 20% (volume fraction) ethanol, 50% (volume fraction) ethanol and olive oil food simulants, as well as chemical alternative solvents - 95% (volume fraction) ethanol and isooctane. Method 1 - Liquid Chromatography
Download or read book GB 31604 56 2023 Translated English of Chinese Standard GB 31604 56 2023 GB31604 56 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-01-27 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the method for determining the migration amount of laurolactam in food contact materials and products. This Standard is applicable to the determination of the migration amount of laurolactam in polyamide food contact materials and products. Method one -- Liquid chromatography
Download or read book GB 31604 59 2023 Translated English of Chinese Standard GB 31604 59 2023 GB31604 59 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-20 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies general requirements for the verification of chemical analysis methods for food contact materials and products. This Standard is applicable to the verification of the formulation and revision process of chemical analysis methods for food contact materials and products in national food safety standards.
Download or read book GB 31604 46 2023 Translated English of Chinese Standard GB 31604 46 2023 GB31604 46 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-06 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the method for the determination of food contact materials and products - free phenol and the determination of migration.
Download or read book GB 31604 58 2023 Translated English of Chinese Standard GB 31604 58 2023 GB31604 58 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-20 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies methods for the determination of migration of nine antioxidants in food contact materials and products. This Standard applies to the determination of migration of antioxidant 2246, antioxidant 264, butylated hydroxyanisole (BHA), 2,4-di-tert-butylphenol, antioxidant 425, antioxidant 300, antioxidant 1010, antioxidant 1076, and antioxidant 168. Method-I High Performance Liquid Chromatography
Download or read book GB 31604 49 2023 Translated English of Chinese Standard GB 31604 49 2023 GB31604 49 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-06 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the method for the determination of arsenic, cadmium, chromium and lead, and the determination of aluminum, arsenic, barium, cadmium, cobalt, chromium, copper, iron, lithium, manganese, molybdenum, nickel, lead, antimony, tin and zinc migration in food contact materials and products.
Download or read book GB 31604 29 2023 Translated English of Chinese Standard GB 31604 29 2023 GB31604 29 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-19 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the determination method for the migration of acrylic acid and methacrylic acid and their esters in food contact materials and products. Part 1 ¨C Gas chromatography-mass spectrometry applies to the determination of migration of 18 kinds of acrylate and methacrylate in food contact ma
Download or read book GB 31604 7 2023 Translated English of Chinese Standard GB 31604 7 2023 GB31604 7 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-21 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the test methods for discoloration of plastic materials and products used in food contact. This standard is applicable to the determination of soak solution coloring and wipe decolorization of food-contact plastic materials and products with colorants.
Download or read book GB 31604 55 2023 Translated English of Chinese Standard GB 31604 55 2023 GB31604 55 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-07 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the methods to determine 1,2-benzisothiazolyl-3(2H)-one, 2-methyl-3(2H)-isothiazolinone and 5-chloro-2-methyl-2H-isothiazol-3-one migration amounts in food contact materials and products. This Standard applies to the determination of 1,2-benzisothiazolyl-3(2H)-one, 2-methyl-3(2H)-isothiazolinone and 5-chloro-2-methyl-2H-isothiazol-3-one migration amounts in food contact plastics, paints and coatings, rubber, paper and cardboard, and food contact materials and articles using inks or adhesives. Method One -- High-performance Liquid Chromatography
Download or read book GB 31604 54 2023 Translated English of Chinese Standard GB 31604 54 2023 GB31604 54 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-07 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the methods for the determination of migration of bisphenol F and S in food contact materials and products by liquid chromatography and liquid chromatography - tandem mass spectrometry. Method 1 - liquid chromatography is applicable to the determination of migration of bisphenol F and S in plastic materials and products for food contact, paints and coatings for food contact, paper and cardboard materials and products for food contact. Method 2 - liquid chromatography - tandem mass spectrometry is applicable to the determination of migration of bisphenol F and S in food contact materials and products. Method 1 - Liquid Chromatography
Download or read book GB 31604 47 2023 Translated English of Chinese Standard GB 31604 47 2023 GB31604 47 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-02-19 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the method for the determination of fluorescent substances in food contact paper, cardboard, and paper products. This standard is applicable to the determination of fluorescent substances in food contact paper, cardboard, and paper products.
Download or read book An English and Chinese Standard Dictionary written by and published by . This book was released on 1908 with total page 1518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book English Chinese Translation Dictionary and Phrase Book written by Translation Readers and published by . This book was released on 2014-07-18 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: English - Chinese Translation Dictionary and Phrase Book. Looking for an easy translation dictionary that is much more? Then, this book is for you. We include the word tenses and sample sentences in both English and Chinese.For a limited time only, English - Chinese Translation Dictionary and Phrase Book is being offered at the discounted price of $9.97. That is 25 percent off the regular sales price. Thousands of the most commonly used words in the language, their tenses and phrases showing how to use each. This is the ideal English to Chinese translation dictionary for students, travelers, and business people. Handy pocket format with easy to read type for quick reference.English - Chinese Translation Dictionary and Phrase BookWelcome! Whether you are learning Chinese, or visiting the country, this handy Chinese reference dictionary will come in handy. We have over three thousand of the most commonly used words and have designed the translation dictionary to be easy to reference, with not only the English to Chinese translation, but the tenses of the words so you know how to use them in sentences. We also include sample sentences in both English and Chinese, so you do have a thorough understanding of how to use the word. Welcome to English to Chinese Translations Dictionary. Please, take a Look InsideWelcome. We invite you to take a look inside where you will find an easy to read, follow and find words translated from English to Chinese. Our format is one that is ideal for everyone- housewives, business persons, and students. And, one that will help you to learn Chinese. Take your dictionary with you everywhere your Tabloid, Smart Phone, Kindle, e Reader, etc. goes. It is the handy pocket reference that will have you speaking Chinese.
Download or read book Introduction to Chinese English Translation written by Zinan Ye and published by Key Concepts and Techniques. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Chinese-English Translation is the first book published in the U.S. that addresses how to translate from Chinese into English. Part One discusses basic issues in translation. Part Two introduces ten essential skills with the help of actual translation examples. Part Three deals with more advanced issues such as metaphors, idioms, and text analysis. Part Four presents six texts of different types for translation practice. A sample translation is provided for each, and translation strategies are analyzed and discussed. --This unique book is the only resource on Chinese-English translation published in the U.S. --A practical, hands-on book for anyone involved in Chinese-English translation, including professional translators, interpreters, and advanced students --Full of examples, explanations, and exercises Zinan Ye has had a long career in translation, as a medical translator and as an educator at Hangzhou University and the Monterey Institute of International Studies. He has written books on translation and writes regularly for Chinese Translators Journal. Lynette Xiaojing Shi has been a translator and interpreter for 30 years, including at the United Nations. She has taught at the University of Hawaii and the Monterey Institute of International Studies. She has translated a novel and has consulted on Chinese-English dictionaries published in China.
Download or read book An English and Chinese Standard Dictionary written by Hui-chʻing Yen and published by . This book was released on 1935 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An English and Chinese Standard Dictionary written by and published by . This book was released on 1908 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
