RKI Instruments M2 Bedienungsanleitung PDF herunterladen (Seite 2)

TLV Values (ppm)

Gas TWA STEL

Ammonia NH3 25.0 35.0

Arsine AsH3 0.005 N/A

Carbon Dioxide CO2 5000 30,000

Carbon Monoxide CO 25.0 N/A

Chlorine Cl2 0.5 1.0

Fluorine F2 1.0 2.0

Hydrogen Chloride HCl N/A C 2.0

Hydrogen Cyanide HCN N/A C 4.7

Hydrogen Fluoride HF 0.5 C 2.0

Hydrogen Sulde H2S 10.0 15.0

Nitrogen Dioxide NO2 3.0 5.0

Ozone (heavy work) O3 0.05 N/A

Phosphine PH3 0.3 1.0

Sulfur Dioxide SO2 N/A .25

RKI Cylinder Sizes

Cylinder Size RKI Part # Sux

17 liter steel no sux

34 liter steel -01

58 liter steel -04

103 liter steel -03

34 liter aluminum -03

58 liter aluminum -02

LEL / UEL % Volume Levels

Gas LEL UEL

Acetone (CH3)2CO 2.5 12.8

Acetylene C2H2 2.5 100.0

Benzene C6H6 1.2 7.8

Butane C4H10 1.9 8.5

Ethane C2H6 3.0 12.5

Ethanol C2H4OH 3.3 19.0

Ethylene C2H4 2.7 36.0

Hexane C6H14 1.1 7.5

Hydrogen H2 4.0 75.0

Isobutane (CH3)3CH 1.8 8.4

Isopropyl Alcohol (CH3)2CHOH 2.0 12.7

Methane CH4 5.0 15.0

Pentane C5H12 1.5 7.8

Propane C3H8 2.1 9.5

Propylene C3H6 2.0 11.1

Toluene C7H8 1.1 7.1

Xylene C8H10 1.1 7.0

Sensor / Cylinder 2 Digit Date Code

RKI sensors and gas cylinders are labeled with a 2 digit date

code that represents the product’s manufactured date.

1st Digit = The last digit of manufactured calendar

year (ex. year 2009 = 9)

2nd Digit = Month (X, Y, Z = month 10, 11, or 12

respectively)

Example: 9X = Manufacture date of Oct. 2009

Terminology

TLV - Threshold Limit Values. There are 3 categories of TLV’s;

TWA, STEL, & Ceiling.

TWA - Time Weighted Average. The time-weighted average

concentration for a conventional 8 hour workday and a 40 hour

work week, to which it is believed nearly all workers may be

repeatedly exposed without adverse aect.

STEL - Short Term Exposure Limit. The concentration which is

believed that workers can be exposed continuously for a short

period of time without suering provided that the TWA is not

exceeded. STEL is dened as a 15 minute TWA exposure.

Ceiling - The concentration that should not be exceeded

during any part of the working exposure.

Parts Per Million (ppm) equivalence to % Volume

1 ppm = 0.0001 %

10 ppm = 0.001 %

100 ppm = 0.01 %

1000 ppm = 0.1 %

10,000 ppm = 1.0 %

100,000 ppm = 10.0 %

1,000,000 ppm = 100.0 %

Cal Gas Shelf Life

Cylinder Size Description Shelf life

17/34/103 L (steel) All mixtures 3 Years

34 AL/ 58 AL H2S/N2 1 Year

34 AL/ 58 AL H2S/CO/O2/N2 1 Year

34 AL/ 58 AL SO2/N2 1 Year

34 AL/ 58 AL NH3/N2 1 Year

34 AL/ 58 AL Cl2/N2 8 Months

34 AL/ 58 AL HCl/N2 8 Months

34 AL/ 58 AL NO/N2 1 Year

34 AL/ 58 AL NO2/N2 6 Months

34 AL/ 58 AL PH3/N2 6 Months

34 AL/ 58 AL SiH4/N2 1 Year

1 2 3 4 5 6 7 ... 196 197

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