GB/T 4854.1-2004 English PDFUS$194.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4854.1-2004: Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones Status: Valid GB/T 4854.1: Historical versions
Basic dataStandard ID: GB/T 4854.1-2004 (GB/T4854.1-2004)Description (Translated English): Acoustics. Reference zero for the calibration of audiometric equipment. Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A59 Classification of International Standard: 13.140 Word Count Estimation: 10,194 Date of Issue: 2004-05-13 Date of Implementation: 2004-12-01 Older Standard (superseded by this standard): GB/T 4854.1-1999 Quoted Standard: GB/T 7342; GB/T 7614 Adopted Standard: ISO 389-1-1998, IDT Regulation (derived from): Announcement of Newly Approved National Standards No. 6, 2004 (No. 68 overall) Issuing agency(ies): State Administration of Quality Supervision, Inspection and Quarantine Summary: This standard specifies the pure tone air conduction audiometry hearing Ae -level indexing benchmark zero. This section presents information that is subject to GB/T 7342 uz prescribed measuring chamber together two standard models without an earphone response as well as in line with GB/T 7614 on the side of the artificial ear specified amount (4. 3 forth) other models the response of the ear headphones can be used directly audiometer calibration from multiple responsible for this standard is based on standardized audiometry laboratory and scientific publications information before making estimates based. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4854.1-2004_English be delivered?Answer: Upon your order, we will start to translate GB/T 4854.1-2004_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 GB/T 4854.1-2004_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 4854.1-2004_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+ countriesQuestion 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 GB/T 4854.1-2004?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4854.1-2004 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. |
