 Home > Chemicals Industry > China Chemical > 5 coal industry standards will come into effect on May 1

5 coal industry standards will come into effect on May 1

 Last Update: 2021-11-30
 Source: Internet
 Author: User

Tags

radiation shielding materials

365 electrolyte water

Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

The Ministry of Emergency Management recently approved and announced 22 emergency management industry standards, which will come into force on May 1, 2021

The main technical changes in the standard of polymer materials for water shutoff in coal mines include: supplementing and perfecting the qualification method for flash point, modifying the anti-aging performance indicators, modifying the requirements and test methods for water quality impact, and deleting the requirements and tests for bonding strength methods

Coal rock reinforcing main technical standard polymer materials change coal comprising: modifying the maximum reaction temperature, increases the oxygen index, the product removed by coal, rock classification, modify the intensity of performance indicators

The main technical changes of the polymer foam material standard for coal mine filling and sealing include: the dimensional stability requirements and test methods have been deleted, the oxygen index detection method and judgment rules have been refined, and the flame retardancy index and the flame retardancy index have been added.

The General Safety Technical Specification for Polymer Materials for Coal Mine Reinforcement, Water Shutoff, Filling and Spraying has clearly stipulated the flash point and harmful substance limit of each liquid component of the polymer materials used in coal mine reinforcement

This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Products

ethylene glycol Liquid

CAS No.: 107-21-1

$0.9-1/KG FOB

Triethanolamine TEA 99% LIQUID SAA985654 SAA

CAS No.: 102-71-6

Pharmacy Grade

$3000-3500/MT FOB

N,N-Dipropyltryptamine monohydrochloride;3-(2-Dipropylaminoethyl) indole hydrochloride DPT HCl

CAS No.: 16382-06-2

Chemical Grade

$66-77/KG FOB

Hot Tags

united states jobs(223)

jobs united states(236)

1 year treasury(277)

1 year subscription(296)

single use technology(195)

announcements today(81)

ups united states(221)

united states logo(227)

80 20 company(94)

healthy food name(42)

Hot Articles

The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.