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JJG 833-2007 English PDF

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Q: Should I purchase the latest version JJG 833-2007?

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US$519.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 833-2007: Verification Regulation of Standard Group Platinum-10% Rhodium/Platinum Thermocouples
Status: Valid

JJG 833: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 833-2007	519	Add to Cart	4 days	Verification Regulation of Standard Group Platinum-10% Rhodium/Platinum Thermocouples	Valid
JJG 833-1993	239	Add to Cart	2 days	Verification Regulation of Working Standard Pt-10Rh/Pt, Pt-13Rh/Pt Thermocouple	Obsolete

Similar standards

JJF 1366 JJF 1187 JJF 1107 JJG 289 JJG 763 JJG 111

Basic data

Standard ID: JJG 833-2007 (JJG833-2007)
Description (Translated English): Verification Regulation of Standard Group Platinum-10% Rhodium/Platinum Thermocouples
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A54
Classification of International Standard: 17.200
Word Count Estimation: 20,245
Date of Issue: 2007-02-28
Date of Implementation: 2007-08-28
Older Standard (superseded by this standard): JJG 833-1993
Quoted Standard: AQSIQ Announcement No. 41 of 2007
Regulation (derived from): AQSIQ Announcement No. 41 of 2007
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to the standard group PtRh10 platinum thermocouple initial verification and follow-up examination.

JJG 833-2007: Verification Regulation of Standard Group Platinum-10% Rhodium/Platinum Thermocouples

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Verification Regulation of Standard Group Platinum-10% Rhodium/Platinum Thermocouples State verification procedures People's Republic of China Standard group of platinum and rhodium 10 - platinum thermocouple StandardGroupPlatinum-10% Rhodium/PlatinumThermocouples Posted 2007-02-28 2007-08-28 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Standard group of platinum and rhodium 10 - platinum thermocouple Verification Regulation GroupPlatinum-10% Rhodium / PlatinumThermocoup les Replacing JJG 833-1993 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine, 2007 February 28 ratification and From August 28, 2007 implementation. Focal point. the National Technical Committee of temperature measurement The main drafting units. China Institute of Metrology Participated in the drafting unit. China Testing Technology Research Institute The temperature measurement procedures commissioned the National Technical Committee is responsible for interpretation The main drafters of this procedure. Zheng Wei (China Institute of Metrology) Next to the East (China Institute of Metrology) Drafters participate. Chung Fu Yun (China Testing Technology Research Institute)

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (1) 4.1 thermoelectric properties (1) 4.2 Stability (1) 5 General Requirements (1) 5.1 Appearance (1) 5.2 Structure (2) 6 Control of measuring instruments (2) 6.1 Verification condition (2) 6.2 test items and test methods (3) 6.3 Verification Results Processing (5) 6.4 test cycle (5) Appendix A test recording format (6) Appendix B test certificate and test results notice (back) format (7) Appendix C platinum and rhodium 10 - platinum thermocouple reference function table (8) Standard group of platinum and rhodium 10 - platinum thermocouple test procedures

1 Scope

And after the initial verification of this Regulation applies to the standard set of platinum and rhodium 10 - platinum thermocouple (hereinafter referred to as the standard set of thermocouples) of Continued verification.

2 Citations

JJF1001-1998 "common measurement terms and definitions" JJG 75-1995 "standard platinum and rhodium 10 - platinum thermocouple test procedures" Note that using the currently valid version of the documents cited.

3 Overview

Standard Group thermocouple, its nominal chemical composition of the positive (SP) containing 90% platinum, 10% rhodium alloy of platinum and rhodium, The negative electrode (SN) of pure platinum. Platinum and rhodium 10 - platinum thermocouple has good oxidation resistance at elevated temperatures, the thermocouple system Column with high stability and reproducibility. Therefore, it is used as a standard measuring instruments, in (419.527 ~ 1084.62) ℃ Zone temperature for money transfer. Thermocouple calibration standard group for first-class standard platinum and rhodium 10 - platinum thermocouple.

4 metering performance requirements

4.1 thermoelectric properties Standard Group thermocouple junction temperature at the freezing point of copper (1084.62 ℃), aluminum freezing point (660.323 ℃) and zinc Freezing point (419.527 ℃), reference junction temperature of 0 ℃, the thermal electromotive force E (tCu), E (tAl) and E (tZn) should Meet the following requirements. a) copper freezing point of the thermal electromotive force E (tCu) shall be not less than 10.560mV, and not more than 10.590mV. b) In the freezing point of aluminum, zinc freezing point of the thermal electromotive force E (tA1), E (tZn) its thermal emf in copper freezing point E (tCu) should be met. E (tAl) = {5.860 0.37 × [E (tCu) -10.575] ± 0.005} mV (1) E (tZn) = {3.447 0.18 × [E (tCu) -10.575] ± 0.005} mV (2) 4.2 Stability Standard Group thermocouple stability shall not exceed the requirements of Table 1. Table 1 thermal emf stability requirements Initial verification subsequent verification ≤2μV ≤3μV

5 General technical requirements

5.1 Appearance ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 833-2007_English be delivered?

Answer: Upon your order, we will start to translate JJG 833-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 833-2007_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 833-2007_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 JJG 833-2007?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 833-2007 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.