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CS600高精度碳硫测定仪

价格：电议
型号：CS600
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访问：182次
发布日期：2009/11/2(更新日期：1900/1/1)

宁波市江东璟瑞仪器仪表有限公司

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简单说明：CS600提供了一系列先进的解决方案检测碳和硫。当今最先进的燃烧和红外相结合的检测技术使您能更准确、精确、使用方便灵活的剖析各种类型的金属和无机材料。

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详细说明:

CS600提供了一系列先进的解决方案检测碳和硫。当今最先进的燃烧和红外相结合的检测技术使您能更准确、精确、使用方便灵活的剖析各种类型的金属和无机材料。

Carbon and Sulfur in Steel, Nickel-Base, and Cobalt-Base Alloys

Instrument

CS600-Series

Sampling and Sample Preparation

Surface contamination on the sample can cause significant errors in the analytical data; therefore, care must be taken to ensure a clean, representative sample is analyzed. Solid

samples should be abraded with a clean file, rinsed in acetone ａnd dried with warm air prior to analysis. Samples that cannot be abraded due to irregular shapes should be rinsed in a

suitable solvent such as acetone, ａnd dried with warm air. Care

must be taken to remove all traces of the solvent. If a sample is porous, refrain from using solvents,

as it will be difficult to remove all traces of the solvent by drying. Refer to ASTM E1806 for additional sampling ａnd sample preparation information.

Accessories

528-018 or 528-018HP Ceramic Crucibles （preheated）*; LECOCEL II （501-008） or

LECOCEL II HP （502-173） accelerator.

*Ceramic crucibles are baked in a muffle or tube furnace （LECO TF-10） at 1250oC for a minimum of

15 minutes, or at 1000oC for 40 minutes. The crucibles are removed from the furnace, allowed to cool for

1 to 2 minutes, ａnd are transferred to a desiccator for storage. If the crucibles are not used within four hours, they should be re-baked.

Calibration

There are several suitable calibration samples available from LECO. Likewise, NIST, JK, JSS, ａnd BCS are certified bodies that have a variety of certified reference materials （SRM/CRM） available as well. It is important that both high- ａnd low-carbon ranges are calibrated. Single or multipoint calibration curves

can be utilized. Refer to the operator＇s instruction manual for details.

Method Parameters

Purge Time （seconds）:	1**
Delay Time （seconds）:	8**
Furnace Low Power （%）:	100
Furnace High Power （%）:	100
Furnace Ramp Rate:	0
	Carbon	Sulfur
Minimum Timeout （seconds）:	40	40
Comparator Level:	1.00	1.00
Significant Digits:	4 or 5	4 or 5
Integration Delay:	0	0

**For optimum analytical performance on samples with low carbon and

sulfur content （ 0.05%）, a purge time of 10 seconds and a delay time of

20 seconds is recommended.

CS600

Procedure

1. Prepare instrument for operation as outlined in the operator＇s instruction manual.

2. Determine blank.

a. Enter 1.0000 g weight into weight stack. b. Add ~1.5 g of accelerator to crucible.

c. Place the crucible on the furnace pedestal （or appropriate autoloader position if so equipped）, ａnd analyze.

d. Repeat steps 2a through 2c a minimum of five times.

e. Enter blank following procedure outlined in the operator＇s instruction manual.

3. Calibrate.

a. Weigh ~1.0 g calibration sample into crucible ａnd enter weight into weight stack.

b. Add ~1.5 g of accelerator on top of sample.

c. Place the crucible on the furnace pedestal （or appropriate autoloader position if so equipped）, ａnd analyze.

d. Repeat steps 3a through 3c a minimum of five times for each calibration sample intended for calibration.

e. Calibrate using the procedure outlined in the operator＇s instruction manual.

4. Analyze Samples.

a. Weigh ~1.0 g sample into crucible ａnd enter weight into weight stack.

b. Add ~1.5 g of accelerator on top of sample.

c. Place crucible on furnace pedestal （or appropriate autoloader position if so equipped）, ａnd analyze.

Note: Some "solid" samples, notably nickel and/or cobalt-base alloys, are difficult to combust ａnd may require additional accelerator. Likewise, reducing the sample to small chunks, chips, or pieces will facilitate combustion. For additional information on Carbon ａnd Sulfur Determination using an Induction Furnace IR detection instrument, request LECO＇s Application Tips CD （209-050-055）.

Typical Results

Sample	Weight （g）	C %	S %	Sample	Weight （g）	C %	S %
LECO	1.0	0.605	0.0176	LECO	1.0	0.00089	0.00062
501-505		0.605	0.0172	502-348		0.00089	0.00067
Steel Ring		0.605	0.0169	Low C ａnd S		0.00094	0.00068
0.607 % C		0.607	0.0171	Steel Pin		0.00095	0.00060
0.0172% S		0.607	0.0174	0.0009 % C		0.00085	0.00064
		0.605	0.0176	0.0007 % S		0.00085	0.00061
		0.606	0.0178			0.00090	0.00062
		0.604	0.0173			0.00090	0.00060
		0.606	0.0173			0.00090	0.00065
		0.605	0.0168			0.00089	0.00055
	X =	*0.606*	*0.0173*		X =	*0.00090*	*0.00062*
	s =	*0.001*	*0.0003*		s =	*0.00003*	*0.00004*
LECO	1.0	0.0375	0.0223	LECO	1.0	0.0414	0.0025
501-501		0.0380	0.0221	501-933		0.0414	0.0027
Steel Ring		0.0375	0.0222	Ni-Base Alloy		0.0413	0.0027
0.0377 % C		0.0377	0.0222	Chip Sample		0.0414	0.0028
0.0220 % S		0.0376	0.0223	0.042 % C		0.0415	0.0027
		0.0376	0.0222	0.003 % S		0.0413	0.0028
		0.0373	0.0221			0.0414	0.0028
		0.0376	0.0222			0.0415	0.0028
		0.0377	0.0223			0.0412	0.0027
		0.0377	0.0222			0.0414	0.0029
	X =	*0.0376*	*0.0222*		X =	*0.0414*	*0.0027*
	s =	*0.0002*	*0.0001*		s =	*0.0001*	*0.0001*

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