Valid

GB 31604.4-2016National Food Safety Standard -- Food Contact Materials and Articles -- Determination of volatiles in resins (English PDF)

食品安全国家标准食品接触材料及制品树脂中挥发物的测定

Preview PDF

This is a limited preview

Buy now to download the full PDF (6 pages)

Need quotation for your management?

Get a formal quotation for GB 31604.4-2016 in 30 minutes.

Issued by

National Health and Family Planning Commission of PRC

Level / Type

National · Mandatory

Issue date

August 31, 2016

Implementation date

March 1, 2017

Scope

GB 31604.4-2016 is the English-translated version of 食品安全国家标准食品接触材料及制品树脂中挥发物的测定.

GB 31604.4-2016 is the Chinese standard "National Food Safety Standard -- Food Contact Materials and Articles -- Determination of volatiles in resins". Its scope clause reads: 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. Its clauses include principle; reagents and materials; apparatus; analytical procedures.

It was issued by the National Health and Family Planning Commission of PRC on 2016-08-31 and took effect on 2017-03-01.

Found what you need?

Document preview — GB 31604.4-2016

National Standard of the People's Republic of China

Issued by: National Health and Family Planning Commission of PRC

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

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

......

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 6 pages — is available in the English PDF.

How to Download GB 31604.4-2016

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.