HOME   Cart(7)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

SJ 2814-1987 English PDF

US$279.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SJ 2814-1987: Technical requirements for measuring standard device of carbon transmitters
Status: Obsolete
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
SJ 2814-1987English279 Add to Cart 3 days [Need to translate] Technical requirements for measuring standard device of carbon transmitters Obsolete SJ 2814-1987

PDF similar to SJ 2814-1987


Standard similar to SJ 2814-1987

GB/T 25102.7   GB/T 14471   GB/T 25102.13   SJ/T 11180.3   SJ/T 11180.4   SJ/T 11180.2   

Basic data

Standard ID SJ 2814-1987 (SJ2814-1987)
Description (Translated English) Technical requirements for measuring standard device of carbon transmitters
Sector / Industry Electronics Industry Standard
Classification of Chinese Standard M72;L31
Word Count Estimation 7,756
Date of Issue 9/1/1987
Date of Implementation 1/1/1988
Regulation (derived from) Industry-Science (2010) No. 77
Summary This standard specifies the test standard circuit test carbon granule microphone when reference equivalent test standard mouthpiece and testing standard distance. Applies SJ1735-81 "total communication electro-acoustic devices technology" used in the telephone transmitter, which transmits a reference when the magnitude and SJ1735-81 "live voice communication transmitter Test Methods" in the test standard telephones. For other forms of using the telephone to the microphone, but also can refer to adoption.

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SJ 2814-1987_English be delivered?

Answer: Upon your order, we will start to translate SJ 2814-1987_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 SJ 2814-1987_English with my colleagues?

Answer: Yes. The purchased PDF of SJ 2814-1987_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.