Gastec 136L 速い検出チューブ臭化メチル CH3Br (2.5~200ppm)

Name: Gastec 136L 速い検出チューブ臭化メチル CH3Br (2.5~200ppm)
Brand: Gastec

メーカーGastec(このブランドの他の製品を見る)

Model136L

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数量

安全なチェックアウト

高品質な対応

簡単な交換・返品

配送対応可能

Indicator: 10 to 100 ppm
Measuring Range:
+ 2.5 to 10 ppm, Number of Pump Strokes 4
+ 10 to 100 ppm, Number of Pump Strokes 1
+ 100 to 200 ppm`, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Yellow
Reaction Principle: 2CH3Br +I2O5+ H2S2O7 → Br 2, Br 2 +O-Tolidine → Yellow product
Coefficient of Variation: 10% (for 10 to 20 ppm), 5% (for 20 to 100 ppm)
Nr. of tests: 5
Pump: GV-100S/110S

Catalog

Manual

Performance

Measuring Range

2.5 to 10 ppm

10 to 100 ppm

100 to 200 ppm

Number of Pump Strokes

1/2

Correction Factor

1/4

Sampling Time

1.5 minutes per pump stroke

Detecting Limit

0.5 ppm (n=4)

Colour Change

White → Yellow

Reaction Principle

2CH3Br +I2O5+ H2S2O7 → Br 2
Br 2 +O-Tolidine → Yellow product

Coefficient of Variation

10% (for 10 to 20 ppm), 5% (for 20 to 100 ppm)

Shelf Life

2 Years

Corrections for temperature & humidity

Unnecessary

Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Chlorine, Bromine, NOx		+	Yellow
Saturated halogenated hydrocarbons		+	Yellow

Other substance measurable with this detector tube

Substance

Correction Factor

No. of pump strokes

Measuring Range

Chlorobromomethane	1.1	1	11 to 110 ppm
1,1-Dibromoethane	0.7	1	7 to 70 ppm
1,2-Dibromoethane	0.8	1	8 to 80 ppm
Dibromomethane	0.5	1	5 to 50 ppm
Ethyl Bromide	1.0	1/2, 1, 4	2.5 to 200 ppm
n-Butyl Bromide	1.0	1	10 to 100 ppm
Benzyl bromide	by scale	1	10 to 100 ppm
Bromoform	by scale	1	1 to 50 ppm

Calibration gas generation

Permeation tube method

TLV-TWA	TLV-STEL	Explosive range
1 ppm	-	10 to 15%

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