Page 54 - Praxair - Specialty Gases and Equipment Reference Guide

Helium He

Transportation (M)SDS Reference
Information P-4602
UN Number: 1046 CAS Number
United States of America Canada Mexico
Shipping Name Helium, Helium, Helium, 7440 - 59 - 7
Compressed Compressed Compressed General Description
Hazard Class 2.1 2.1 2.1 Colorless, odorless, nonflammable
Label Nonflammable Nonflammable Nonflammable inert gas.
Gas Gas Gas

Product/Grade Purity Part Cylinder N 2 O 2 H 2 0 CO 2 CO THC H 2 Ne Ar Halogens
Number
Research, 6.0 99.9999% HE 6.0RS T, K 0.4 0.1 0.2 0.1 0.1 0.1 0.5 – 0.5 –
Chromatography, 99.9999% HE 6.0CH T,K – 0.5 0.2 0.1 0.1 0.1 – – – –
6.0
Semiconductor, 99.9999% HE 6.0SP T, K 0.5 0.2 0.2 0.1 0.1 0.1 0.1 – – –
6.0
Trace Analytical, 99.9995% HE 5.5TG T, K 2 1 2 0.5 0.5 0.1 – – 1 500 ppt
(1)
5.5
Semiconductor, 99.9995% HE 5.5SP T, K 2 0.5 0.5 0.5 0.5 0.5 – – – –
5.5
Laser Star, 5.5 99.9995% HE 5.5LS AT – 1 1 – 0.1 – – – 50 ppt (2)
Ultra High Purity 99.9995% HE 5.5UP T, K, 3 1 1 0.5 0.5 0.5 – – – –
Plus, 5.5 packs,
tubes
Semiconductor, 99.999% HE 5.0SP T, K 6 2 3 1 1 1 – – – – Section B – Pure Gases
5.0
Ultra High Purity, 99.999% HE 5.0UH T, K, 5 1 2 – – 0.5 – – – –
5.0 packs,
tubes
Laser Star, 5.0 99.999% HE 5.0LS T, K – 1 2 – – 0.5 – – – –
Laser Star, 4.7 99.997% HE 4.7LS T, K – 3 3 – – 1 – – – –
Zero, 4.8 99.998% HE 4.8Z T, K – 4 3 – – 0.5 – – – –
High Purity, 4.8 99.998% HE 4.8 6K, 4K, – 5 5 – – – – – – –
3K, T, K
Concentrations given are ppm by volume unless otherwise specified.
Maximum ppm unless otherwise noted.
(1) No peaks exceed the equivalent of 500 ppt Halogens.
(2) No peaks exceed the equivalent of 50 ppt Halogens.

Cylinders
Cylinder Style Size Connection Pressure Volume Gross Weight
Type in (cm) CGA/DISS psig (bar) ft (m ) lb (kg)
3
3
6K Ultra High Pressure Steel 51 x 10 (129.5 x 24.4) 677 6000 (460) 519 (14.39) 308 (140)
4K Ultra High Pressure Steel 91 x 9.3 (129.5 x 23.5) 680 4500 (310) 432 (11.98) 151 (69)
3K Ultra High Pressure Steel 51 x 10 (129.5 x 24.4) 680 3500 (268) 333 (9.23) 192 (87)
T High Pressure Steel 55 x 9.3 (139.7 x 23.5) 580/718 2640 (183) 291 (8.2) 146 (66)
K High Pressure Steel 51 x 9 (129.5 x 22.9) 580/718 2200 (154) 218 (6.17) 135 (61)
AT High Pressure Aluminum 54 x 10 (137.2 x 25.4) 580/718 2200 (154) 110 (49.9) 97 (44)
AS High Pressure Aluminum 48 x 8 (121.9 x 20.3) 580/718 2000 (139) 135 (3.74) 49 (22)
Cylinder packs and tube trailers are available upon request.

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