Home Cart Quotation Policy About-Us
www.ChineseStandard.net
Database: 221581 (27 Mar 2026)
SEARCH
Path: Home > QB/T > Page39 > QB/T 4251-2024

QB/T 4251-2024 PDF English

Price & Delivery

US$319.00 · In stock · Download in 9 seconds
QB/T 4251-2024: (Quartz master clock for ships)
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid

QB/T 4251: Historical versions

Std IDVersionUSDBuyDeliver [PDF] inTitle (Description)
QB/T 4251-2024English319 Add to Cart 3 days [Need to translate] (Quartz master clock for ships)
QB/T 4251-2011English519 Add to Cart 3 days [Need to translate] Primary-secondary quartz clocks for ships

Click to Preview a similar PDF

Basic data

Standard ID QB/T 4251-2024 (QB/T4251-2024)
Description (Translated English) (Quartz master clock for ships)
Sector / Industry Light Industry Standard (Recommended)
Classification of Chinese Standard Y11
Classification of International Standard 39.040.20
Word Count Estimation 14,181
Date of Issue 2024-10-24
Date of Implementation 2025-05-01
Older Standard (superseded by this standard) QB/T 4251-2011
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the operating temperature, voltage range, and working reliability of quartz master and slave clocks for ships, describes the corresponding test methods, specifies inspection rules and markings, packaging, transportation, storage and installation, and gives classifications and electrical parameters that facilitate technical regulations. This standard applies to the production, inspection, sale and installation of a master clock and a sub-clock composed of a master clock connected to multiple sub-clocks by wire, and is used as a reference for the production, inspection, sale and installation of other single quartz clocks used on ships.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of QB/T 4251-2024_English be delivered?


Answer: Upon your order, we will start to translate QB/T 4251-2024_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 QB/T 4251-2024_English with my colleagues?


Answer: Yes. The purchased PDF of QB/T 4251-2024_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 Sales@ChineseStandard.net. 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 QB/T 4251-2024?


Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version QB/T 4251-2024 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.
Refund Policy Privacy Policy Terms of Service