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Chemical Sampling Information (CSI)
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General Description

Synonyms: N'-(3,4-Dichlorophenyl)-N-methoxy-N-methyl urea; Afalon; Linurex; Lorox

OSHA IMIS Code Number: L128

Chemical Abstracts Service (CAS) Registry Number: 330-55-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: YS9100000; 86417

Chemical Description and Physical Properties:

vapor pressure: 1.5 x 10-5 mm at 24°C
melting point: 93-94°C

Health Factors

Health Effects: LD50 (oral, rat) 1500 mg/kg

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Glass Fiber Filter (37 mm)
    maximum volume: 240 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/U
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

Conditions: Chloroform extraction; C18 column; 55% methanol 45% water; 2 mL/min; UV Det: 254; Retention time, 12.7 min; DL 0.2 ug/sample; C/P DBA

Wipe Sampling Method:

  • sampling media: Glass fiber filter

Bulk Method:

  • Limit the amount of bulk submitted to one gram or one mL.

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