GB/T 34263-2017 English PDF

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GB/T 34263-2017: Hydroxypropyl methyl cellulose for industrial use
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34263-2017	219	Add to Cart	3 days	Hydroxypropyl methyl cellulose for industrial use	Valid

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Basic data

Standard ID: GB/T 34263-2017 (GB/T34263-2017)
Description (Translated English): Hydroxypropyl methyl cellulose for industrial use
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G17
Word Count Estimation: 11,152
Date of Issue: 2017-09-07
Date of Implementation: 2018-04-01
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

GB/T 34263-2017: Hydroxypropyl methyl cellulose for industrial use

---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.
Hydroxypropyl methyl cellulose for industrial use ICS 71.080.99 G17 National Standards of People's Republic of China Industrial hydroxypropyl methyl cellulose Hydroxypropylmethylcelulose forindustrialuse 2017-09-07 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Petroleum and Chemical Industry Federation. This standard by the National Standardization Technical Committee (SAC/TC63) centralized. This standard was drafted by Shandong Teng New Materials Co., Ltd., Shandong Institute of product quality inspection, Shandong Chemical Industry Research Institute. The main drafters of this standard. Teng Kun, Li Zhenfeng, Xu Shiming, Zhang Juan, Li Lin, Zhang Shuangjian, Li Changyin, Wang Ping, where Jun Lin, Pan Li Pan, Luo Jinhuan, Jiang Ping, Han Shu Xia. Industrial hydroxypropyl methyl cellulose

1 Scope

This standard specifies the industrial use of hydroxypropyl methyl cellulose models, requirements, test methods, inspection rules, packaging, labeling, storage and transportation. This standard applies to refined cotton or other cellulose as raw material, alkalized and etherified industrial production of hydroxypropyl methylcellulose.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 601 chemical reagent standard titration solution preparation GB/T 603 chemical reagent test methods used in the preparation and preparation of products GB/T 6284 chemical products - Determination of moisture in the general method of dry weight loss method GB/T 6679 General rules for sampling solid chemical products GB/T 6682 analytical laboratory water specifications and test methods Test methods for homogeneity of concrete admixtures GB/T 8077-2012 GB/T 8170 rounded repair rules and limit values of the representation and judgment GB/T 9722-2006 General rules for chemical reagent gas chromatography GB/T 9724 chemical reagent pH measurement General

3 product model

Industrial hydroxypropyl methyl cellulose product model by the gel temperature, respectively, 60,65,70,75.

4 requirements

4.1 appearance White or light yellow powder. 4.2 technical requirements Technical indicators of industrial hydroxypropyl methyl cellulose meet the requirements of Table 1. Table 1 technical requirements project index Hydroxypropoxy content /% 7.5 ~ 12.0 4.0 ~ 7.5 23.0 ~ 32.0 4.0 ~ 12.0 Methoxy content /% 28.0 ~ 30.0 27.0 ~ 30.0 16.5 ~ 20.0 19.0 ~ 24.0 Gel temperature range (0.2% aqueous solution)/° C 58-64 62-68 68-75 70-90 ......

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