1,3-BUTADIENE
1,3-BUTADIENE
1,3-BUTADIENE
C4H6 MW: 54.09 CAS: 106-99-0 RTECS: E19275000
METHOD: 1024, Issue 2 EVALUATION FULLIssue 1: 15 August 1987
Issue 2: 15 August 1993
OSHA :1000 ppm(in 6(b) rulemaking process
NIOSH:lowest feasible suspect carcinogen
ACGIH:10 ppm; suspect carcinogen
(1 ppm = 2.21 mg/m3 @ NTP)PROPERTIES: °C; gas; vapor density 1.9 (air = 1);BP -4.4 °C; VP 280 kPa (26 psig) @ 25explosive range 2.0 to 11.5% v/v in air
SYNONYMS:butadiene; biethylene; divinyl
SAMPLING
MEASUREMENTAPPLICABILITY: Assuming 25-L sampling volumes: the upper limit of the sampler is 220 mg/m3 (100 ppm); the measurementrange covers 0.044 to 19 mg/m3 (0.02 to 8.7 ppm). At higher levels, desorbed samples may require dilution. Below 0.9 mg/m3(0.4 ppm), the desorption efficiency falls below 75% and allowance should be made for decreased accuracy.
INTERFERENCES: Pentane, methyl acetylene, or vinylidene chloride may chromatographically interfere at high levels. Highhumidity (>80% RH) or other hydrocarbons present at permissible levels may significantly decrease the sampler's capacity for1,3-butadiene.
OTHER METHODS: This revises Method S91 [1].
