HOME   Cart(4)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

MT 21-1990 English PDF

US$359.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
MT 21-1990: Vertical shaft skip loading measuring equipment
Status: Obsolete

MT 21: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
MT 21-1990English359 Add to Cart 3 days [Need to translate] Vertical shaft skip loading measuring equipment Obsolete MT 21-1990
MT 21-1975EnglishRFQ ASK 3 days [Need to translate] (Chinese Industry Standard) Obsolete MT 21-1975

PDF similar to MT 21-1990


Standard similar to MT 21-1990

MT/T 716   MT/T 661   MT 76   MT/T 717   MT 233   

Basic data

Standard ID MT 21-1990 (MT21-1990)
Description (Translated English) Vertical shaft skip loading measuring equipment
Sector / Industry Coal Industry Standard
Classification of Chinese Standard D93
Word Count Estimation 9,967
Date of Issue 10/26/1990
Date of Implementation 11/1/1990
Older Standard (superseded by this standard) MT 21-1975
Quoted Standard GB 1184; GB 1804; JB 2134; JB 2149; MT 154.1
Summary This standard specifies the vertical shaft skip loader metering device (hereinafter referred to as the loading device) product classification, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to skip metering Shaft loading equipment. Coal mine shaft loading equipment is to multiple or single rope skip rope load of coal from underground coal bunker intermediate storage and metering devices installed.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of MT 21-1990_English be delivered?

Answer: Upon your order, we will start to translate MT 21-1990_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of MT 21-1990_English with my colleagues?

Answer: Yes. The purchased PDF of MT 21-1990_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version MT 21-1990?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version MT 21-1990 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.