GB/T 38229-2019 English PDF

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GB/T 38229-2019: Test method for hazard classification of tricresyl phosphate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38229-2019	199	Add to Cart	3 days	Test method for hazard classification of tricresyl phosphate	Valid

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Basic data

Standard ID: GB/T 38229-2019 (GB/T38229-2019)
Description (Translated English): Test method for hazard classification of tricresyl phosphate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A80
Classification of International Standard: 13.300
Word Count Estimation: 10,147
Date of Issue: 2019-10-18
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38229-2019: Test method for hazard classification of tricresyl phosphate

---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.
Test method for hazard classification of tricresyl phosphate ICS 13.300 A80 National Standards of People's Republic of China Classification method for dangerous characteristics of tricresyl phosphate Published on.2019-10-18 2020-05-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Technical Committee for Standardization of Hazardous Chemicals Management (SAC/TC251). This standard was drafted. Changzhou Import and Export Industry and Consumer Product Safety Testing Center. The main drafters of this standard. Wang Hongsong, Shang Guiqin, Zhang Min, Hua Wen, Wang Wenqi, Wu Hao, Zhu Huihui.

Introduction

Tricresyl phosphate is an important chemical raw material in modern industry and is mainly used as a flame retardant plasticizer for plastics and rubber. At the same time, phosphorus Trimethyl methacrylate has good compatibility with most paint resins and can increase the flexibility of the paint film, so it is widely used in the paint industry. Phosphate Trimethyl methacrylate mainly has three isomers. tri-o-tolyl phosphate (CAS No. 78-30-8), tri-tolyl phosphate (CAS No. 563-04- 2) and tri-p-tolyl phosphate (CAS No. 78-32-0). In the UN Model Regulations on the Transport of Dangerous Goods, tricresyl phosphate is a listed substance, UN number 2574, positive The transport name is “tricresyl phosphate, containing ortho-isomers greater than 3%”, and hazard category 6.1. According to the requirements of the shipping name, if phosphoric acid If the content of the ortho isomer in the crepe ester is not more than 3%, the UN code is not applicable to the product, and it is required to be combined with the substance or mixture. Classification by physicochemical, health toxicology and ecotoxicological data and expert judgement. In order to accurately identify the hazardous properties of tricresyl phosphate, the determination of the content of tri-o-cresyl phosphate in tricresyl phosphate was established. The law is the key, so this standard was developed. Classification method for dangerous characteristics of tricresyl phosphate

1 Scope

This standard specifies the equipment and materials, test procedures and hazard characteristics of the test methods required for the classification of hazardous properties of tricresyl phosphate. This standard applies to the classification of dangerous goods for tricresyl phosphate dangerous goods.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. United Nations "Provisions of Recommendations on the Transport of Dangerous Goods" (19th revised edition) (Recommendationsonthetrans- portofdangerousgoods-Modelregulations) International Maritime Dangerous Goods Code (38-16th Edition) (Internationalmaritimedangerousgoodscode) Technical Regulations for the Safety of Airborne Dangerous Goods (No..2016-2017) (Technicalinstructionsforthesafetransportof Dangerousgoodsbyair)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Classification of dangerous characteristics classificationofthehazardouscharacterisitics Chemicals in accordance with the UN Model Regulations on the Transport of Dangerous Goods (TDG), International Maritime Dangerous Goods Code (IMDG), International Technical Regulations for the Safety of Airborne Dangerous Goods (ICAO-TI) or national industry standards for transport hazard identification Determine the type of transport hazard and the degree of hazard.

4 Method summary

A certain amount of tricresyl phosphate was weighed into an ethyl acetate solution, filtered through an organic filter membrane, and then subjected to gas chromatography-mass spectrometry. Analysis, external standard method quantitative. The hazardous properties were determined based on the content of tri-o-tolyl phosphate in tricresyl phosphate. Tri-phosphoric acid in this method The limit of detection of the toluene ester was 10 mg/kg.

5 reagents and materials

5.1 Ethyl acetate. chromatographically pure. 5.2 Tri-o-tolyl phosphate standard. purity ≥ 99%. 5.3 Tri-o-tolyl phosphate standard stock solution. accurately weigh 25mg of tri-o-tolyl phosphate standard, accurate to 0.1mg, placed Dissolve in ethyl acetate with a 250 mL volumetric flask and bring up to volume and mix. The solution has a mass concentration of 100 mg/L. 5.4 Preparation of standard working solution. accurately transfer 0.1mL, 0.50mL, 1.0mL, 2.0mL, 4.0mL, 6.0mL, 8.0mL respectively ......

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