GB/T 5473-2016 English PDF

US$94.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 5473-2016: Plastics -- Phenol formaldehyde moulding -- Detection of free ammonia
Status: Valid

GB/T 5473: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5473-2016	94	Add to Cart	2 days	Plastics -- Phenol formaldehyde moulding -- Detection of free ammonia	Valid
GB/T 5473-1985	159	Add to Cart	2 days	Phenol-formaldehyde mouldings. Detection of free ammonia	Obsolete

Similar standards

GB/T 6595   GB/T 6344   GB/T 6669   GB/T 5474   GB/T 5475   

Basic data

Standard ID: GB/T 5473-2016 (GB/T5473-2016)
Description (Translated English): Plastics -- Phenol formaldehyde moulding -- Detection of free ammonia
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G31
Classification of International Standard: 83.080.01
Word Count Estimation: 5,537
Date of Issue: 6/14/2016
Date of Implementation: 2017-01-01
Older Standard (superseded by this standard): GB/T 5473-1985
Adopted Standard: ISO 172-1978, IDT
Regulation (derived from): National Standard Announcement No. 8 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This International Standard specifies the qualitative method for the determination of free ammonia or other volatile bases in phenolic moldings by placing the test paper in a gas evolved from a powder sample. This standard is also applicable to the determination of aminophenol-free phenolic moldings.

GB/T 5473-2016: Plastics -- Phenol formaldehyde moulding -- Detection of free ammonia

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Plastics - Phenol formaldehyde mouldings - Detection of free ammonia ICS 83.080.01 G31 National Standards of People's Republic of China Replace GB/T 5473-1985 Determination of Free Ammonia in Plastic Phenolic Molding Products (ISO 172. 1978, IDT) 2016-06-14 release 2017-01-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard instead of GB/T 5473-1985 "phenolic molded products free ammonia test", compared with GB/T 5473-1985, the main technical The changes are as follows. --- standard name changed to "plastic phenolic molding products free ammonia determination"; --- Added "preface"; --- removed the standard text "This standard is equivalent to the international standard ISO 172. 1978" plastic phenolic molded products free ammonia (See the 1985 edition); --- modified the range of test paper, with "pH1.0 ~ 11.0" instead of "pH1 ~ 14" (see 3.4, 1985 version 3.4); --- Remove the standard additional instructions. This standard uses the translation method equivalent to ISO 172. 1978 "Determination of free ammonia in plastic phenolic molding products". For ease of use, this standard has been modified as follows. - Added "e) test date" in Chapter 7, in order to increase the traceability of the test. This standard is proposed by the China Petroleum and Chemical Industry Association. This standard by the National Plastics Standardization Technical Committee Thermosetting Plastics Subcommittee (SAC/TC15/SC11) centralized. The drafting of this standard. Shanghai Eurasian Synthetic Materials Co., Ltd., in the blue dawn Chemical Research and Design Institute Co., Ltd., the national synthetic resin Quality Supervision and Inspection Center, Changshu Southeast Plastic Co., Ltd., Shaxian Hongsheng Plastic Co., Ltd., Shandong Shengquan Chemical Co., Ltd. The main drafters of this standard. Chen Ziling, Liu Yong, Zhao Ping, Wang Yonggui, Zhang Fang, Luo Jianfeng, Zhao Zhongsha. This standard was first published in October 1985 and this is the first revision. Determination of Free Ammonia in Plastic Phenolic Molding Products

1 Scope

This standard specifies that the test paper be placed in the gas escaped from the powder sample to determine free ammonia or other volatile bases in the phenolic molded article Qualitative method. This standard is also applicable to the determination of non-aminophenolic molded products.

2 principle

The alkaline gas escaped from the powder sample contained in the sealed flask was measured with a wide range of test strips.

3 instruments

3.1 Equipment for making molded products into powder. 3.2 balance. sense of 0.01g. 3.3 with a plug mouth glass flask. capacity 50mL. 3.4 wide range of test paper. pH1.0 ~ 11.0.

4 Preparation of sample

Use a file, milling, grinding, car or drill method to make a fully representative molded product made of powder, careful not to overheat the material. Prepared well Should be tested immediately (see Chapter 5).

5 operating procedures

Weigh about 1g of the sample (Chapter 4), quickly into the flask (3.3), and immediately with the plug tight. And then moisten it with distilled water The test paper (3.4) is clamped between the stopper and the bottleneck so that one end of the test strip is inserted into the flask. CAUTION. Do not allow the test strip to come into contact with the specimen. After 30 minutes, observe the change of the color of the test paper and make a record.

6 results show

If the test paper does not change color, it is reported that the molded article does not contain free ammonia or other volatile bases. If the test paper changes color, indicating an alkaline gas, the report molded article contains free ammonia or other volatile base.

7 Test Report

The test report should include the following. a) indicate the use of this standard; ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 5473-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 5473-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 5473-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 5473-2016_English will be deemed to be sold to your employer/organization who actually pays 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. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 5473-2016?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5473-2016 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.