sampling and analytical methods: ethylene thiourea

  • sampling and analytical methods: ethylene thiourea

    Sampling and Analytical Methods: Ethylene Thiourea

    The sampler capacity was assessed by sampling from a dynamically generated test atmosphere of ethylene thiourea (25°C, 80% RH) at 2.0 L/min and for various sampling times analyzing the back filter. At 2 times the target concentration and a sampling time of 6 h, no ethylene thiourea was detected on the back filter.

  • sampling and analytical methods: thiourea - (partially

    Sampling and Analytical Methods: Thiourea - (Partially

    In OSHA methods #95,"ETHYLENE THIOUREA" is collected on glass fiber filter (GFF) (Ref. 5. 1.). Because thiourea and ethylene thiourea are chemically similar, GFF was evaluated as a sampling medium for thiourea. 1.1.2. Toxic effects (This section is for information only and should not be taken as the basis of OSHA policy.)

  • sampling and analytical methods | index of sampling

    Sampling and Analytical Methods | Index of Sampling

    Sampling and Analytical Methods | Index of Sampling and Analytical Methods - E Ethylene Thiourea [95] Fully Validated: 96-45-7: HPLC/UV: GFF: Ethyl 3

  • ethylene thiourea 5011

    ETHYLENE THIOUREA 5011

    ETHYLENE THIOUREA: METHOD 5011, Issue 2, dated 15 August 1994 - Page 4 of 4 13. Calculate the concentration of ETU, C (mg/m3), in the air volume sampled, V (L): EVALUATION OF METHOD: The method was tested with 21 PVC (VM-1)/ETU spiked samples in the range 15 to 150 µg per sample with an average recovery of 98.0 ± 3.2% [1].

  • thiourea - (partially validated method #2059)

    THIOUREA - (Partially Validated Method #2059)

    In OSHA methods #95,"ETHYLENE THIOUREA" is collected on glass fiber filter (GFF) (Ref. 5. 1.). Because thiourea and ethylene thiourea are chemically similar, GFF was evaluated as a sampling medium for thiourea. 1.1.2. Toxic effects (This section is for information only and should not be taken as the basis of OSHA policy.)

  • sampling and analytical determination of airborne tetramethyl

    Sampling and analytical determination of airborne tetramethyl

    The detection limit is 0.75 microg/sample for ethylene thiourea and 3 microg/sample for tetramethyl thiourea. Experimental results indicate that this method can be used as a general analytical method for the analysis of other thiourea-derived compounds. PMID: 15508482 [Indexed for MEDLINE] MeSH terms. Ethylenethiourea/analysis* Spectrum Analysis

  • tetramethyl thiourea (3505) - wikisource, the free online library

    Tetramethyl Thiourea (3505) - Wikisource, the free online library

    NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 TETRAMETHYL THIOUREA: METHOD 3505, Issue 2, dated 15 August 1994 - Page 3 of 4 b. c. Analyze together with the samples and blanks (steps 6 through 8).

  • for ethylene thiourea

    for ETHYLENE THIOUREA

    Most of the methods now used for the synthesis of ETU are variations of this, but Matolcsy (1968) demonstrated that it could also be synthesized from KCN and CS2. In industry, ethylene thiourea is synthesized from ethylene diamine and carbon disulfide (Merck Index, 1976). Most of the

  • current intelligence bulletin 22: ethylene thiourea (etu) - cdc

    Current Intelligence Bulletin 22: Ethylene Thiourea (ETU) - CDC

    The NIOSH Occupational Exposure Sampling Strategy Manual, NIOSH Publication #77-173, may be helpful in developing efficient programs to monitor employee exposures to ethylene thiourea. The manual discusses determination of the need for exposure measurements, selection of appropriate employees for exposure evaluation, and selection of sampling

  • system of registries | us epa

    System of Registries | US EPA

    Ethylene thiourea. Preferred Acronym: ETU. Molecular Weight: 102.16 Molecular Formula: OSHA Sampling and Analytical Method NIOSH Criteria Document IRIS QuickView

  • (pdf) determination of ethylene thiourea in urine by hplc-dad

    (PDF) Determination of ethylene thiourea in urine by HPLC-DAD

    Most analytical methods are focused on food Ridomil Gold in a single oral dose followed by urine sampling for 104 h post-exposure. Ethylene thiourea is manufactured at one factory in the

  • osha 95– products and materials guide

    OSHA 95– Products and Materials Guide

    Ethylene Thiourea Ethylene thiourea is used as an accelerator in synthetic rubber production, a curing agent for epichlorohydrin elastomers, and component of ethylenebisdithiocarbamate fungicides. For this method, samples are collected open-face by drawing air through a four-piece sampling cassette containing two glass fiber filters.