GB/T 14454.1-2008 PDF EnglishUS$85.00 · In stock · Download in 9 seconds
GB/T 14454.1-2008: Fragrance/Flavor substances -- Preparation of test samples Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 14454.1: Historical versions
Similar standardsGB/T 14454.1-2008: Fragrance/Flavor substances -- Preparation of test samples---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/GBT14454.1-2008NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 71.100.60 Y 41 Replacing GB/T 14455.1-1993 Fragrance/Flavor substances - Preparation of test samples (ISO 356:1996, Essential oils - Preparation of test samples, MOD) ISSUED ON: JULY 15, 2008 IMPLEMENTED ON: DECEMBER 01, 2008 Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China. Table of ContentsForeword ... 3 1 Scope ... 5 2 Principle ... 5 3 Instruments ... 5 4 Reagents ... 5 5 Operating procedures ... 6ForewordGB/T 14454, Fragrance/Flavor substances, consists of the following parts: -- Part 1: Fragrance/Flavor substances - Preparation of test samples; -- Part 2: Fragrance/Flavor substances - Method for valuation of odour; -- Part 4: Fragrance/Flavor substances - Determination of refractive index; -- Part 5: Fragrance/Flavor substances - Determination of optical rotation; -- Part 6: Fragrance/Flavor substances - Quantitative evaluation of residue on evaporation; -- Part 7: Fragrance/Flavor substances - Determination of freezing point; -- Part 11: Fragrance/Flavor substances - Determination of content of phenols; -- Part 12: Fragrance/Flavor substances - Method for determination of trace chlorinated compounds; -- Part 13: Fragrance/Flavor substances - Determination of carbonyl value and carbonyl compounds content; -- Part 14: Fragrance/Flavor substances - Preparation of standard solution, test solution and indicator solution; -- Part 15: Oil of sassafras - Determination of safrole and isosafrole content - Gas chromatographic method on packed columns. This Part is Part 1 of GB/T 14454. This Part revises and adopts ISO 356:1996, Essential oils - Preparation of test samples. Compared with ISO 356:1996, this Part mainly adds the preparation of isolate and synthetic fragrance samples. This Part is a revision of GB/T 14454.1-1993, "Aromatics - Preparation of test sample". Compared with GB/T 14454.1-1993, the main changes in this Part are as follows: -- Revise Chapter 1 Scope; -- Delete contents of Chapter 2 Reference standard and 4.2.4 Determination of refractive index by refractometer of GB/T 14454.1-1993. This Standard was proposed by China National Light Industry Council. Fragrance/Flavor substances - Preparation of test samples1 ScopeThis part of GB/T 14454 stipulates the preparation principle, instruments, reagents and operating procedures of fragrance samples for laboratory analysis. This Part applies to the preparation of essential oil, isolate and synthetic fragrance samples. This Part is particularly applicable to fragrances that cannot be directly analyzed, that is, fragrances that are solid or semi-solid at room temperature or those that are cloudy due to containing of water or suspended particles. This Part does not apply to samples for moisture determination.2 PrincipleAdd magnesium sulfate or sodium sulfate to the fragrance that is liquid at room temperature or that needs to be heated to an appropriate temperature to be liquid; then, filter to remove moisture and insoluble substances in the sample.3 InstrumentsCommonly used instruments in the laboratory, especially the following instruments: 3.1 Oven. 3.2 Conical flask. 3.3 Appropriate filtering device.4 Reagents4.1 All the used reagents are analytical reagents. 4.2 Freshly dried, neutral magnesium sulfate or freshly dried sodium sulfate: heat magnesium sulfate or sodium sulfate at 180 °C ~ 200 °C (read the temperature from the continuously stirred material); dry to constant weight (it ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 14454.1-2008 be delivered?Answer: The full copy PDF of English version of GB/T 14454.1-2008 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 14454.1-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 14454.1-2008_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 14454.1-2008 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.Question 5: Should I purchase the latest version GB/T 14454.1-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 14454.1-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.How to buy and download a true PDF of English version of GB/T 14454.1-2008?A step-by-step guide to download PDF of GB/T 14454.1-2008_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB/T 14454.1-2008". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
