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JJG 847-2011: Verification Regulation of Filter Type Smokemeters
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
JJG 847-2011	English	299	Add to Cart	3 days [Need to translate]	Verification Regulation of Filter Type Smokemeters
JJG 847-1993	English	319	Add to Cart	3 days [Need to translate]	Verification Regulation of Filter-Type Smokemeters

JJG 847-2011: Verification Regulation of Filter Type Smokemeters

---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 Filter Type Smokemeters State verification procedures People's Republic of China Filter type Issued on. 2011-07-28 2012-01-28 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Filter type verification procedures FilterTyp eSmokemeters Replacing JJG 847-1993 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine on July 28, 2011 for approval and self From January 28, 2012 into effect. Focal point. the National Technical Committee on Optical metrology Main drafting unit. Guangdong Institute of Metrology Foshan Analyzer Ltd. Beijing Institute of Metrology detection Participated in the drafting unit. China Metrology Association of Motor Vehicle measurement test Technical Committee This procedure committee commissioned by the National Optical measurement technology is responsible for interpreting The main drafters of this procedure. Right Xiaojing (Guangdong Institute of Metrology) Jia Rui (Guangdong Institute of Metrology) CHANG (Foshan Analyzer Ltd.) Zhang Qing Yin (Beijing Institute of Metrology detection) Drafters participate. Shi Shao Yi (Guangdong Institute of Metrology) Baoguo Hua (China Metrology Association of Motor Vehicle measurement test Technical Committee)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 terminology and units of measurement (1) 4 Overview (1) 5 metering performance requirements (2) 5.1 smoke value (2) 5.2 The pump performance (2) 6 General Requirements (2) 6.1 Appearance and general requirements (2) 6.2 Electrical Safety (2) 7 control of measuring instruments (3) 7.1 test conditions (3) 7.2 Verification Project (3) 7.3 Verification Methods (4) 7.4 Verification Results Processing (5) 7.5 test cycle (5) Appendix A filter type test original records (6) Appendix B calibration certificate and test results in the notice page format (7) Filter type verification procedures

1 Scope

The order applies to the filter type (hereinafter referred to as the smoke meter) initial verification, verification and subsequent use an examination.

2 Citations

JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement GB/T 11798.5-2001 motor vehicle safety testing equipment Technical requirements of verification - Part 5. filter type Technical requirements of verification smokemeter HJ553-2010 smoke Cards When using this rule, we should pay attention to using the currently valid version of the documents cited.

3 terminology and units of measurement

3.1 smoke smoke Smoke filter means that the degree of black filter paper with 0-10 Bosch smoke Unit (BSU), ie clean filter Paper as 0BSU, black filter paper as 10BSU, from 0 to 10 degrees evenly by the formula (1). Rb = (1-ρP/ρ0) × 10 (1) Where. Rb --- smoke, BSU; ρP --- is the reflection factor after Black filter paper; ρ0 --- Clean the filter of the reflection factor. 3.2 exhaust volume sweptvolume Smokemeter once drawn into the suction pump gas volume. 3.3 extraction time pump-downtime The time required to complete the entire stroke of the piston suction pump. 3.4 Leakage leakagevolume The volume of the gas by the piston and the filter paper is clamped edge leakage.

4 Overview

Smokemeter measuring instruments for measuring diesel car exhaust concentration values. Smokemeter sampling system consists of two parts and measuring system. Sampling system includes a sampling probe and sampling connection Tube, suction device; measuring system includes a measuring probe, filter insertion device and display instruments. Smokemeter within the specified time, set aside a certain volume of diesel engine emissions from vehicles through a particular specification Filter paper, so that the exhaust carbon particles retained on the filter paper, stable light emitted by the light source within the instrument to measure the irradiation Smoke spot test on filter paper, through the smoke spot then reflected to the light receiver front of the photosensitive surface. Since the optical receiver photoelectric effect Generated by the current output as a detection signal and amplified by the extent of quantitative detection of contaminated filter paper, and then determine diesel ...