GB/T 1844.4-2008 English PDF

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GB/T 1844.4-2008: Plastics -- Symbols and abbreviated terms -- Part 4: Flame retardants
Status: Valid

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Basic data

Standard ID: GB/T 1844.4-2008 (GB/T1844.4-2008)
Description (Translated English): Plastics -- Symbols and abbreviated terms -- Part 4: Flame retardants
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G32
Classification of International Standard: 83.080.01
Word Count Estimation: 7,795
Date of Issue: 2008-08-04
Date of Implementation: 2009-04-01
Quoted Standard: GB/T 1844.1-2008; GB/T 1844.2-2008; GB/T 1844.3-2008
Adopted Standard: ISO 1043-4-1998, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 12, 2008 (No. 125 overall)
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 standard specifies the added flame retardant plastic material unity symbol. Abbreviations are the symbol "FR" and the subsequent one or more coding structure. These codes is given in Chapter 5. Symbols representing these symbols used in conjunction with a plastic material, the plastic material to be named and identification and marking of plastic products.

GB/T 1844.4-2008: Plastics -- Symbols and abbreviated terms -- Part 4: Flame retardants

---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 - Symbols and abbreviated terms Part 4. Flame retardants ICS 83.080.01 G32 National Standards of People's Republic of China GB/T 1844.4-2008/ISO 1043-4.1998 Plastics - Symbols and Abbreviations Part 4. Flame Retardant (ISO 1043-4.1998, IDT) Posted 2008-08-04 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 1844 "Plastics - Symbols and Abbreviations" includes the following four parts. --- Part 1. Basic polymers and their special characteristics; --- Part 2. filling and reinforcing material; --- Part 3. Plasticizers; --- Part 4. flame retardants. This section GB/T 1844 Part 4. This part identical with ISO 1043-4.1998 "Plastics - symbols and abbreviated --- --- Part 4. Flame Retardant "(in English). This section is equivalent translation ISO 1043-4.1998. For ease of use, this section made the following editorial changes. --- Remove the foreword to international standards, national standards increase the foreword; --- "This part of ISO 1043" with the words "GB/T 1844 to the present section"; --- All correspondence abbreviations are English terms and Chinese terminology. This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee of plastic products and plastic resins General Methods Chapter (SAC/TC15/SC4) centralized. This part mainly drafted by. National Quality Supervision and Inspection Center of synthetic resin, Shandong Dawn Group Co., Ltd. Participated in the drafting of this section. Guangzhou Blonde Technology Co., Ltd., Beijing Yanshan Petrochemical Resin Institute, Sichuan University, China Institute of Chemistry, Academy of Sciences. The main drafters of this section. Chen Jian, in Xiaoning, Zhouwei Xiang, HE Jiasong, Huang Rui, bears political, Li Jianjun. GB/T 1844.4-2008/ISO 1043-4.1998 Plastics - Symbols and Abbreviations Part 4. Flame Retardant

1 Scope

GB/T 1844 This section provides the added flame retardant plastic material symbol of unity. Acronyms symbol is "FR" and follow-up One or more coding structure, these codes are given in Chapter 5. These symbols represent the symbol of the plastic material used in conjunction with on the plastic Feed material naming and identification and marking of plastic products.

2 Normative references

The following documents contain provisions by GB/T 1844 reference in this part of the provisions of this section. For dated references, All subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the agreement on this section Parties to study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 1844.1-2008 Plastics - Symbols and abbreviated terms - Part 1. Basic polymers and their special characteristics (ISO 1043-1. 2001, IDT) GB/T 1844.2-2008 Plastics - Symbols and abbreviations - Part 2. fillers and reinforcing materials (ISO 1043-2.2000, IDT) GB/T 1844.3-2008 Plastics - Symbols and abbreviations - Part 3. Plasticizers (ISO 1043-3.1996, IDT)

3 Terms and Definitions

The following terms and definitions apply GB/T 1844 to the present section. 3.1 It can significantly slow the spread of fire substances. Note. Included in the prepolymer mixing flame retardants.

4 Symbol Application

The first symbol is a flame retardant in capital letters "FR" written in abbreviations, followed without a space, in Chapter 5 selects the appropriate two The code number, and enclosed in parentheses. When the mass content of more than 1% of the flame retardant should be identified. The symbol is GB/T 1844 first 1, 2 and 3 part of the plastic material symbol supplement. Example 1.  PE- Polyethylene LD Low Density FR (30 + 40) Flame retardants. organic phosphorus compounds include nitrogen-containing compounds and halogen-free Example 2.  PA6- Polyamide 6 Impact modifiers GF30 30% glass fiber reinforced FR (52) Flame retardants. red phosphorus GB/T 1844.4-2008/ISO 1043-4.1998 ......

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