GB/T 13658-2015 English PDF

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GB/T 13658-2015: Polymethylene polyphenylene isocyanate
Status: Valid

GB/T 13658: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13658-2015	149	Add to Cart	3 days	Polymethylene polyphenylene isocyanate	Valid
GB/T 13658-1992	199	Add to Cart	3 days	Polymethylene polyphenylene isocyanate	Obsolete

Similar standards

GB/T 15593   GB/T 12008.2   GB/T 12672   GB/T 13657   GB/T 13659   

Basic data

Standard ID: GB/T 13658-2015 (GB/T13658-2015)
Description (Translated English): Polymethylene polyphenylene isocyanate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G32
Classification of International Standard: 83.040
Word Count Estimation: 7,751
Date of Issue: 2015-12-31
Date of Implementation: 2016-07-01
Older Standard (superseded by this standard): GB/T 13658-1992
Quoted Standard: GB/T 4472; GB/T 6678; GB/T 6680; GB/T 12009.2; GB/T 12009.3; GB/T 12009.4; GB/T 12009.5
Regulation (derived from): State Standard Announcement 2015 No.43
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 requirements, test methods, inspection rules and marks, packaging, transportation and storage of polymethylenepolyphenylisobutyrate (hereinafter referred to as polymeric MDI). This standard applies to the condensation of aniline, phosgenation, separation, distillation of polymethylene polyphenyl isocyanate prepared.

GB/T 13658-2015: Polymethylene polyphenylene isocyanate

---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.
Polymethylene polyphenylene isocyanate ICS 83.040 G32 National Standards of People's Republic of China Replacing GB/T 13658-1992 Polymethylene polyphenyl isocyanate Issued on. 2015-12-31 2016-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB /, compared with the GB/T 13658-1992 major changes "polymethylene polyphenyl polyisocyanate" T 13658-1992 as follows. --- Increasing the classification (see Chapter 3); --- Cancellation qualified products, a product and a superior product (Chapter 3, 1992 edition); --- Acidity index increased to 0.030% (see Chapter 4, Chapter 3, 1992 edition); --- Density of the sampling program to type test items (see 6.2, version 5.4 in 1992). The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee plastic polyurethane plastics Technical Committee (SAC/TC15/SC8) centralized. This standard is drafted by. Wanhua Chemical Group Co., Ltd. Participated in the drafting of this standard. Shandong East freshman of Stornoway New Materials Co., Ltd., Dawn Chemical Research Institute Co., Ltd., Gansu Silver Juyin Chemical Co., Ltd. Zhejiang Huafeng synthetic resin. The main drafters of this standard. Chen Yifeng, Kongrui Fang, Xu Feng industry, Zou Shuzhen, Mao Zhihong, Meng column, Xue Jingqin, Shishu Hui. This standard was first released in October 1993, this is the first revision. Polymethylene polyphenyl isocyanate

1 Scope

This standard specifies the polymethylene polyphenyl isocyanate claim ester (hereinafter referred to as polymeric MDI), test methods, inspection rules and signs, Packaging, transportation, storage and so on. This standard applies to aniline by condensation, phosgenation, separation, distillation system polymethylene polyphenyl isocyanate.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Determination of GB/T 4472 chemical product density, relative density GB/T 6678 General Principles for Sampling Chemical Products GB/T 6680 General rules for sampling liquid chemical products Part 2 production of aromatic isocyanates GB/T 12009.2 plastic polyurethane. Determination of hydrolyzable chlorine GB/T 12009.3 plastic polymethylene polyphenyl isocyanate Part 3. Determination of viscosity Determination isocyanato content. GB/T 12009.4 plastic polyurethane used in the production of aromatic isocyanates Part 4 Part 5 of aromatic isocyanates GB/T 12009.5 production of polyurethane plastics. Determination of acidity Category 3 Depending on the product viscosity ranges and for different purposes determined polymeric MDI grades, major brands and use Table 1 shows an example of grades as follows. PM-200 English abbreviation of polymeric MDI PolymericMDI 200mPa · s viscosity at about Table 1 polymeric MDI grades and use Trademark use PM-200 It can be widely used in the manufacture of rigid polyurethane foam and isocyanurate foams, coatings, adhesives, seepage, structural foam, porous integral skin foam Foam, car bumpers, interior parts, high resilient foam, synthetic wood and other fields PM-400 It can be used in rigid polyurethane - poly isocyanurate (PUR-PIR) foam system, particularly for continuous lamination of polyurethane - poly isocyanurate Great Production of boards of PM-600 can be used for the production of poly isocyanurate (PIR) foam system, particularly for continuous lamination of poly isocyanurate chunk sheet

4 Requirements

Polymeric MDI technology indicators should meet the requirements in Table 2. ......

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