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ASTM D6890-07a

Standard Test Method for Determination of Ignition Delay and Derived Cetane Number (DCN) of Diesel Fuel Oils by Combustion in a Constant Volume Chamber (Includes all amendments And changes 12/31/2010).

Automaticky preložený názov:

Štandardná skúšobná metóda pre stanovenie zapaľovanie oneskorenie a odvodených cetánové číslo ( DCN ) zo Diesel vykurovacích olejov spaľovaním v konštantnom objeme komory

NORMA vydaná dňa 15.2.2007

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Prevedenie	Online zabezpečené PDF - 82.40 € Tlačené - 82.40 €
Dostupnosť	SKLADOM
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82.40 €

Informácie o norme:

Označenie normy: ASTM D6890-07a
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.2.2007
Kód tovaru: NS-36883
Počet strán: 15
Približná hmotnosť: 45 g (0.10 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM D6890-07a :

Keywords:

cetane number, derived cetane number, diesel performance, ignition characteristic, ignition delay

Doplňujúce informácie

1. Scope

1.1 This automated laboratory test method covers the quantitative determination of the ignition characteristics of conventional diesel fuel oil, oil-sands based fuels, blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives, and is applicable to products typical of ASTM Specification D 975 grades No. 1-D and 2-D regular and low-sulfur diesel fuel oils, European standard EN 590, and Canadian standards CAN/CGSB-3.517 and 3.6-2000. The test method may also be applied to the quantitative determination of the ignition characteristics of diesel fuel blending components.

1.2 This test method measures the ignition delay and utilizes a constant volume combustion chamber with direct fuel injection into heated, compressed air. An equation correlates an ignition delay determination to cetane number by Test Method D 613, resulting in a derived cetane number (DCN).

1.3 This test method covers the ignition delay range from 3.3 to 6.4 ms (61 to 34 DCN). The combustion analyzer can measure shorter and longer ignition delays, but precision may be affected. For these shorter or longer ignition delays the correlation equation for DCN is given in Appendix X2. There is no information about how DCNs outside the 34 to 61 range compare to Test Method D 613 cetane numbers.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E456-13a(2022)e1	Standard Terminology Relating to Quality and Statistics (Includes all amendments and changes 4/16/2024).
ISO 4010	Diesel EnginesCalibrating Nozzle, Delay Pintle Type
ISO 4259
D975-26c	Standard Specification for Diesel Fuel (Includes all amendments and changes 7/20/2026).
D1193-24	Standard Specification for Reagent Water
D4057-22	Standard Practice for Manual Sampling of Petroleum and Petroleum Products
D4175-24e2	Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants (Includes all amendments and changes 6/9/2026).
D4177-22e1	Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).
D5854-25	Standard Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products
D6708-24	Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
D6300-26	Standard Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products, Liquid Fuels, and Lubricants
CAN/CGSB 3.520
CAN/CGSB-3.517
IP 41	Ignition Quality of Diesel FuelsCetane Engine Test Method Available from Institute of Petroleum, 61 New Cavendish St., London, W1G 7AR, U.K.
	Automotive FuelsDieselRequirements and Test Methods Available from European Committee for Standardization. Central Secretariat: rue de Stassart, 36, B-1050 Brussels, Belgium.
D6299-26a	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance (Includes all amendments and changes 8/4/2026).
D613-26	Standard Test Method for Cetane Number of Diesel Fuel Oil

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