Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB 31604.4-2016 PDF English

US$70.00 · In stock · Download in 9 seconds
GB 31604.4-2016: National Food Safety Standard -- Food Contact Materials and Articles -- Determination of volatiles in resins
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid
Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
GB 31604.4-201670 Add to Cart Auto, 9 seconds. National Food Safety Standard -- Food Contact Materials and Articles -- Determination of volatiles in resins Valid

Similar standards

GB 31604.51   GB 31604.52   GB 31604.50   GB 31604.7   

GB 31604.4-2016: National Food Safety Standard -- Food Contact Materials and Articles -- Determination of volatiles in resins


---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/GB31604.4-2016
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA National Food Safety Standard – Food Contact Materials and Products – Determination of Volatile Substances in Resin Issued on: AUGUST 31, 2016 Implemented on: MARCH 1, 2017 Issued by. National Health and Family Planning Commission of PRC

Table of Contents

Foreword ... 3 1 Scope ... 4 2 Principle ... 4 3 Reagents and Materials ... 4 4 Apparatus ... 4 5 Analytical Procedures ... 4 6 Expression of Analytical Results ... 5 7 Precision ... 6 National Food Safety Standard – Food Contact Materials and Products – Determination of Volatile Substances in Resin

1 Scope

This Standard specifies the determination of volatile substances in resin of food contact materials and products. This Standard is applicable to the determination of volatile substances in polystyrene resin of food contact materials and products.

2 Principle

At 138°C~140°C, under 85.3kPa, the loss weight of specimen after drying for 2h minus the mass of drying loss weight is the mass of the volatile substances.

3 Reagents and Materials

Butanone (C4H8O).

4 Apparatus

4.1 Balance. sensibility of 0.1mg. 4.2 Ultrasonic cleaning device. operating frequency of 35kHz. 4.3 Vacuum drying oven.

5 Analytical Procedures

5.1 Sampling method Operate as per GB 5009.156. 5.2 Drying weight loss ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Image 1     Image 2     Image 3     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of English version of GB 31604.4-2016 be delivered?Answer: The full copy PDF of English version of GB 31604.4-2016 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 31604.4-2016_English with my colleagues?Answer: Yes. The purchased PDF of GB 31604.4-2016_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+ countries

Question 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB 31604.4-2016 -- 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.

How to buy and download a true PDF of English version of GB 31604.4-2016?

A step-by-step guide to download PDF of GB 31604.4-2016_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 31604.4-2016".
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