Aliphatic and alicyclic hydrocarbons - 446 entries found

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1988

CIS 90-1136 Propane, butane
Propan, butan [in Polish]
Chemical safety information sheet. No established exposure limit. Asphyxiants.
Centralny Instytut Ochrony Pracy, 1 Ul. Tamka, 00-349 Warszawa 30, Poland, 1988. 2p.

CIS 90-734 Cyclohexane
Cykloheksan [in Polish]
Chemical safety information sheet. Permissible exposure limit (Poland) = 80mg/m³.
Centralny Instytut Ochrony Pracy, 1 Ul. Tamka, 00-349 Warszawa 30, Poland, 1988. 2p.

CIS 90-242 Schmider F.
Descent into manholes - The air in manholes may be deadly
Einsteigen in Schächte - Die Luft im Schacht kann tödlich sein [in German]
Carbon dioxide, methane and hydrogen sulfide are the most hazardous gases that may occur in manholes. Two examples are used to illustrate that natural ventilation may not suffice to remove all toxic concentrations. Manholes must be supplied with fresh air forced all the way to the bottom. In addition, measurements of the CO₂, CH₄ and O₂ concentrations are necessary prior to entry.
Humane Produktion - Humane Arbeitsplätze, 1988, Vol.10, No.8, p.6-9.

CIS 89-969 Poturaev V.N., Mjaken'kij V.I.
Use of a microbiological method of methane oxidation in mine workings
Primenenie mikrobiologičeskogo sposoba okislenija metana v vyrabotannom prostranstve [in Russian]
Methane-oxidising bacteria (species unspecified) grown on a large scale for feed supplements were suspended in mine water containing approprite nutrients. The suspension was sprayed on piles of coal in workings. In the case of one seam, spraying a 25m-long pile once a day for 23 days reduced methane output from the collected coal from 8.75 to 6.61m³/t and reduced ambient methane concentrations from 0.9-1% to 0.66%, which enabled an increase in coal output from 768t/day to 922t/day. For the 9 test sites as a whole, methane output from the mined coal was reduced by 40-60%.
Ugol' Ukrainy, Mar. 1988, No.3, p.32-33. 5 ref.

CIS 89-624 Hjertager B.H., Bjørkhaug M., Fuhre K.
Explosion propagation of non-homogeneous methane-air clouds inside an obstructed 50m³ vented vessel
An experimental study of flame and pressure development of non-homogeneous methane clouds has been performed in a large scale obstructed tube of diameter 2.5m and length 10m and with one end closed and the other end open. Two types of leakages were simulated, namely guillotine breaks in pipes (axial leaks) and gasket failures in flanges (radial leaks). Three different leakage cross-sectional areas were tested. The results indicate that the explosion pressure produced is highly dependent on leak parameters such as leak arrangement, mass of fuel injected and ignition delay time. Explosion pressures may reach values as high as in the corresponding tests using homogeneous methane clouds. This was found for all the axial jet leaks tested (diameters 2, 5 and 8cm) with a mass injected equal to the stoichiometric mass and using ignition delay times smaller than about 15 seconds. The radial leaks, using stoichiometric mass, produced smaller pressures than the corresponding axial leaks.
Journal of Hazardous Materials, Sep. 1988, Vol.19, No.2, p.139-153. Illus. 8 ref.

CIS 89-568 Nakajima T., Okino T., Kurasawa K., Murayama N., Sato A.
Five cases of industrial poisonings caused by organic solvents in smaller-scale factories
Chūshokigyo ni okeru yūkiyōzai-chūdoku no hassei-jirei ni kansuru kenkyū [in Japanese]
Case 1: a 67-year-old man fell unconscious 10 minutes after entering a degreasing tank that contained trichloroethylene (TRI) for cleaning up. He was found to have liver damage after this acute intoxication episode and was estimated to have been exposed to about 3000ppm of TRI for 7 hours. Cases 2 and 3: a 54-year-old and a 21-year-old man cleaned watch parts with TRI. The former was found to have chemical burns, bradycardia, extrasystolic arrhythmia and unconsciousness after accidental TRI exposure. The latter was diagnosed as having polyneuropathy due to chronic exposure to TRI. Case 4: 6 women, aged 20-50 years, had been printing on the hands of wristwatches and used 500-1000mL per day of n-hexane. They showed difficulty in walking and sensory disturbance, and were diagnosed as having polyneuropathy caused by n-hexane. Case 5: a man aged 36 painted automobiles. He had used toluene in this work and also drank heavily. Sensory disturbance in this case was associated with polyneuropathy probably caused by toluene.
Japanese Journal of Traumatology and Occupational Medicine, Jan. 1988, Vol.36, No.1, p.58-69. 41 ref.

CIS 88-2023 Boudene C.
n-Hexane
n-Hexane [in French]
Contents of this information note: definition, physical and chemical characteristics; historical study of the toxicology of n-hexane, principally characterised by polyneuritis; clinical description of neurological damage; metabolism and toxic activity; other toxic effects; interferences by other industrial solvents; prevention of intoxication (biological monitoring of exposed workers, keeping exposure limits in the air of the workplace, monitoring of the quality of solvents used in industry); compensation of poisoning in the workplace (in France).
Encyclopédie médico-chirurgicale, Intoxications, 1988, 6p. 44 ref.

CIS 88-1913 Kosler F.
Fatal accidents caused by camping refrigerators in drivers' cabs of trucks
Tödliche Unfälle durch Camping-Kühlschränke in Lkw-Führerhäusern [in German]
Carbon monoxide poisoning is stated as the cause of death of 3 truck drivers. Propane gas-operated refrigerators in the drivers' cabs were identified as the CO-source. In one case a technically defective burner led to oxygen deficient combustion. In the other two cases oxygen deficiency in the closed driver's cab was attributed solely to the lack of fresh air supply from the outside. It is recommended to use electricity for operating the refrigerators.
Verkehrs-Rundschau, Mar. 1988, Special issue: Mitteilungen Berufsgenossenschaft für Fahrzeughaltungen No.10, p.3-5. Illus.

CIS 88-1791 Cyclohexane
Cyclohexane [in French]
Chemical safety information sheet. Update of the data sheet already summarised in CIS 88-737. Exposure limits (France, 1983): TWA = 1050mg/m³; ceiling value = 1300mg/m³. EEC number and labelling codes: No.601-017-001; F, R11, S9, S16, S33.
Institut national de recherche et de sécurité, 30 rue Olivier-Noyer, 75680 Paris Cedex 14, France, 1988. 4p. 15 ref.

CIS 88-1679 Gas welding and cutting - Leaking and overheating cylinders
Soudage et oxycoupage - Fuite et surchauffe des bouteilles [in French]
Technical safety information sheet. Aspects covered: leakage detection; safety rules; handling of overheating acetylene cylinders.
Canadian Centre for Occupational Health and Safety, 250 Main St. East, Hamilton, Ontario L8N 1H6, 1988. 1p. Illus.

CIS 88-737 Cyclohexane
Cyclohexane [in French]
Chemical safety information sheet. Exposure limits (France, 1983): TWA = 1050mg/m³; ceiling value = 1300mg/m³. Acute toxicity: depression of central nervous system; skin irritation. EEC identification number and labelling codes: No.601-017-001; F, R11, S9, S16, S33.
Institut national de recherche et de sécurité, 30 rue Olivier-Noyer, 75680 Paris Cedex 14, France, 1988. 4p. Bibl.

1987

CIS 89-1973 Heimbürger G., Lundberg P.
Arbetsmiljöinstitutet
Criteria documents from the Nordic Expert Group 1987
This report consists of English translations of the criteria documents which have been published in Scandinavian languages during 1987. These documents are meant to be used as a scientific basis for the setting of national exposure limits in the Nordic countries. The chemical substances treated are: methyl bromide (previously published as Arbete och hälsa 1987:18, see CIS 88-1610), n-decane and n-undecane (Arbete och hälsa 1987:25, see CIS 88-1606) and methylene chloride (Arbete och hälsa 1987:29, see CIS 88-953). A list of documents previously published by the Nordic Expert Group is appended.
Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1987. 123p. Bibl.

CIS 89-1255 Douglas R.B., Coe J.E.
The relative sensitivity of the human eye and lung to irritant gases
Various concentrations of irritant gases were applied to the eyes of subjects through close-fitting goggles and, in separate experiments, to the lungs via a mouthpiece. Eye response was detected subjectively, lung response was measured objectively by plethysmograph and the threshold concentrations for no-response were determined. For a number of gases tested (sulphur dioxide, ammonia, butan-2-one, pentan-2-one, pentan-3-one, 3 methyl butan-2-one, formaldehyde and acrolein), the threshold concentrations for the eyes was about 1.5 times that for the lungs. Other irritants, however, can be specific for certain organs.
Annals of Occupational Hygiene, 1987, Vol.31, No.2, p.265-267. Illus. 3 ref.

CIS 89-735 Acetylene
Acetylen; Etyn [in Swedish]
Chemical safety information sheet taken from the Kemiska Ämnen Register (CIS 89-214). Extremely flammable. Toxicity: gas causes headache and dizziness.
Arbetarskyddsnämnden, Box 3208, 10364 Stockholm, Sweden, 1987. 3p.

CIS 89-628 Mal'ceva A.S., Frolov Ju.E., Jakušina E.P.
Peculiarities of the flammable limits of mixtures of cyclohexane and chlorine
Osobennosti predelov rasprostranenija plameni smesej ciklogeksana i hlora [in Russian]
To ensure the safety of the process of chlorination of cyclohexane, the flammable limits were determined for mixtures of cyclohexane, chlorine and nitrogen at atmospheric pressure and room temperature. Cyclohexane-rich mixtures remained explosive at lower oxidant concentrations than is the case for mixtures of cyclohexane with other hydrocarbons.
Himičeskaja promyšlennost', 1987, No.9, p.16-18. Illus. 5 ref.

CIS 89-569 Antonjuženko V.A., Gnesina E.A., Gnelickij G.I., Karačarova S.V., Kalistova V.V.
Some characteristics of current forms of occupational nervous system diseases of chemical aetiology
Osobennosti sovremennyh form professional'nyh zabolevanij nervnoj sistemy himičeskoj ėtiologii [in Russian]
Follow-up of 214 patients with the most commonly encountered types of poisoning (caused by ethylene, vinyl chloride, trichloroethylene, mercury and its compound granosanum-64) as well as with occupational pathology due to antibiotics (penicillin and streptomycin). Neurological symptoms often develop in combination with symptoms of organic lesions of different parts of the brain. Ethylene, vinyl chloride, and trichloroethylene affect mainly the mesencephalon and caudal regions, whereas mercury affects the brain stem and cerebellum. Antibiotics produce circulatory disorders confirmed by visual disorders.
Gigiena truda i professional'nye zabolevanija, Feb. 1987, No.2, p.19-22. 9 ref.

CIS 88-2009 Summary on the replies received concerning the information alert on 1,3-butadiene
Résumé des réponses reçues à la demande d'informations sur les risques du butadiène-1,3 [in French]
On the basis of information provided by OSHA, the Occupational Safety and Health Branch of the ILO addressed an information alert on 1,3-Butadiene (BD) to all national centres of the International Safety and Health Hazard Alert System. These centres were requested to provide information from their countries, in particular on: health effects from exposure to 1,3-Butadiene; control systems; substitution products; types of protective equipment and respirators; training programmes for workers; medical surveillance; costs of protective measures; information and data on possible environmental effects. Replies were received from 26 countries.
International Labour Office, International Occupational Safety and Health Hazard Alert System, 1211 Genève 22, Switzerland, Aug. 1987. 27p.

CIS 88-1814 Propane
Propane [in French]
Chemical safety information sheet. Toxicity: asphyxiant.
Canadian Centre for Occupational Health and Safety, 250 Main Street East, Hamilton, Ontario L8N 1H6, 1987. 13p. 17 ref.

CIS 88-2004 n-Hexane
This review covers: identity; disposition and metabolism (animal and human studies); animal toxicity (acute, irritancy and sensitisation, effects of prolonged exposure, toxicity of n-hexane metabolites, mutagenicity, carcinogenicity, reproductive system effects); human toxicity (acute, irritancy and sensitisation, effects of repeated exposure, summary of human effects).
HM Stationery Office, P.O. Box 276, London SW8 5DT, United Kingdom, 1987. 93p. 289 ref. Price: GBP 14.50.

CIS 88-1992 Downs T.D., Crane M.M., Kim K.W.
Mortality among workers at a butadiene facility
Several studies of styrene-butadiene rubber (SBR) workers have reported excess cancers at various sites. The current study examined cause-specific mortality in a cohort of 2,586 male workers employed for at least 6 months between 1943-1979 in a butadiene manufacturing plant. Standardised mortality ratios were calculated using national (NSMR) and local (LSMR) comparison populations. The all-cause NSMR was 80 (p<0.05) and the all-cancer NSMR was 84; the corresponding LSMRs were 96 and 76 (p<0.05). No significant excesses were observed for any cause of death except lymphosarcoma and reticulum cell sarcoma (NSMR=235). When the cohort was subdivided into routine, non-routine, and low-exposure groups, the SMRs were consistently elevated for this cause of death in all 3 groups. This suggests that butadiene may not be responsible for the excess, but the association deserves close attention in future studies.
American Journal of Industrial Medicine, 1987, Vol.12, No.3, p.311-329. 12 ref. Appendices.

CIS 88-1469 Propane
Propane [in French]
One page chemical safety information sheet based on Chemical Hazard Summary No. 25 or Cheminfo record No. 59 available from CCOHS.
Canadian Centre for Occupational Health and Safety, 250 Main St. East, Hamilton, Ontario L8N 1H6, Canada, 1988. 1p.

CIS 88-1606 Kjærgaard S., Mølhave L.
Arbetsmiljöinstitutet
Nordic Expert Group for Documentation of Occupational Exposure Limits 75. N-Decane and n-undecane
Nordiska expertgruppen för gränsvärdesdokumentation 75. N-Decan och n-undecan [in Danish]
A survey and evaluation of literature useful as a basis to point out effects on which an occupational exposure limit should be based. No relevant human dose-effect or dose-response curves are established. Male rats show kidney damage when exposed to solvent mixtures containing n-decane and n-undecane. In animal studies both substances are cocarcinogenic and in very large doses they are lethal. Nerve function is diminished in in-vitro experiments. It is impossible to recommend any threshold limits based on existing knowledge, and the need for further investigations is pointed out.
Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1987. 32p. 52 ref.

CIS 88-1320 Acetylene cylinders - hazards and procedures
The construction and operation of acetylene cylinders are discussed with a view to fire prevention and fighting: properties of acetylene; safety devices on cylinders; leaks and their consequences; flashback; cylinders in a fire; procedures for fire fighting.
Fire Prevention, Sep. 1987, No.202, p.31-32.

CIS 88-1316 Sabotage causes propane release
The propane pipeline explosion and fire in 1981 in Sweden are described. Covered are: description of the damaged pipeline; development of the incident; ignition of the vapour cloud; fire fighting; damage; cause of the release; the vapour cloud; source of ignition.
Loss Prevention Bulletin, Oct. 1987, No.077, p.17-25. Illus. 1 ref.

CIS 88-918 Ackley M.W.
Chemical cartridge respirator performance: 1,3-butadiene
1,3-Butadiene recently has been classified as a potential occupational carcinogen. The performance of Scott organic vapour (642-OV), organic vapour/acid gas (642-OA) and acid gas (642-AG) twin cartridges was determined for 1,3 butadiene. A cartridge test system was developed to generate challenge concentrations of 100ppm and 1000ppm; an infrared analyser was used to measure breakthrough at 10ppm. The twin cartridges tested demonstrated reasonable adsorption capacity for 1,3 butadiene. Cartridge service life was inversely proportional to airflow rate; it was reduced at elevated temperature and humidity conditions. Breakthrough times were approximately three times longer at 100ppm than at 1000ppm. When clean air was drawn through cartridges saturated with 1000ppm 1,3 butadiene, desorption occurred readily. The rate of desorption and the peak concentration were dependent upon the temperature, humidity and degree of saturation.
American Industrial Hygiene Association Journal, May 1987, Vol.48, No.5, p.447-453. Illus. 13 ref.

CIS 88-380 Acetylene
Acetylen [in Norwegian]
Chemical safety information sheet. No established limit value in Norway. Extremely flammable. Has slight anaesthetic effect. Asphyxiant.
Direktoratet for arbeidstilsynet, Postboks 8103 Dep., 0032 Oslo 1, Norway, Rev. ed., Jan. 1987. 4p.

CIS 87-1353 Governa M., Calisti R., Coppa G., Tagliavento G., Colombi A., Troni W.
Urinary excretion of 2,5-hexanedione and peripheral polyneuropathies in workers exposed to hexane
40 shoe factory workers who were exposed to hexane were investigated to see if there was a correlation between electroneuromyographic changes indicative of neuropathy and urinary excretion of the metabolic products of n-hexane and its isomers. 2,5-Hexanedione and γ-valerolactone were discovered in all cases, while 2-hexanol was found in 11 cases. 2,5-Hexanedione was the main metabolite in 39 cases. Metabolic products of cyclohexane were present in about one-fifth of the cases, while trichloroethanol, a metabolic product of trichloroethylene, was nearly always present, all at very low concentrations. Electromyographic abnormalities significant for early detection of toxic polyneuropathy were found in 14 cases. A statistically significant correlation of the electroneuromyographic scoring with the urinary metabolites was observed only for 2,5-hexanedione and γ-valerolactone. Since γ-valerolactone is probably not a true metabolite of n-hexane, the results support the hypothesis that polyneuropathies in shomakers are due to 2,5-hexanedione. For practical purposes the urinary concentration of 2,5-hexanedione can serve as a predictive measurement for early detection of neurotoxic lesions at preclinical stages.
Journal of Toxicology and Environmental Health, 1987, Vol.20, No.3, p.219-228. 26 ref.

CIS 87-792
Institution of Occupational Safety and Health
1,3-Butadiene
Chemical safety information sheet. Exposure limits (HSE Control Limits as of Jan. 1988): 8h TWA = 10ppm. Highly flammable and explosive gas. Toxicity: irritation of the eyes and upper respiratory tract; narcotic effects at high concentrations. Contact with the liquefied gas can cause skin or eye burns. Suspected carcinogen and teratogen; may affect reproductive functions.
Safety Practitioner, Aug. 1987, Vol.4, No.3, p.34-35. 11 ref.

CIS 87-999 Soleo L., Coratelli A., Iacovone M.T., De Liso E., Margari L., Cassano F., Elia G., Fantuzzi A., Sassi C., Ambrosi L.
Neurophysiological study of a group of workers exposed to technical heptane in a rubber shoe factory
Indagine neurofisiologica su un gruppo di lavoratori esposti ad eptano tecnico in una fabbrica di calzature in gomma [in Italian]
This study involved 50 workers exposed to technical heptane and 2 groups of controls of roughly equal size. The technical heptane had the following composition: 38-40% n-heptane, 8-10% 3-methylhexane, 27-30% 2-methylhexane, 17-21% methylcyclohexane, <0.2% n-hexane and <3% other solvents (toluene, etc.). Exposure levels at work stations did not exceed TLV-TWA levels set by ACGIH for n-heptane. Nevertheless, in the exposed workers there was a significantly raised level of subclinical neuropathy involving the most distal sensitive tracts of the median nerve. Dysaesthesia and asthenia of the limbs were the most frequently noted subjective neurological symptoms among the exposed workers. No correlations were found between duration and extent of exposure to n-heptane and total technical heptane on one hand, and measured neurological functions on the other. It is recommended that TLVs be set for the components of technical heptane.
Medicina del lavoro, Jan.-Feb. 1987, Vol.78, No.1, p.68-74. Illus. 25 ref.

CIS 87-635 Propane and butane: safety measures in case of leaks in the open air
Propan und Butan: Schutzmassnahmen bei Gasaustritt im Freien [in German]
Propano e butano: misure di protezione in caso di fuga di gas all'aperto [in Italian]
Propane et butane: mesures de protection en cas de fuite de gaz à l'air libre [in French]
Illustrated flyer showing what to do in case of leaks of these gases in the open air: in the absence of fire, in the presence of fire, and when there is fire close to the liquified gases. The document may be used as a poster.
Feuillet 11042/1, Caisse nationale suisse d'assurance en cas d'accidents, 6002 Lucerne, Switzerland, 1987. 4p. Illus.

CIS 87-634 Propane and butane: safety measures in case of indoor leaks
Propan und Butan: Schutzmassnahmen bei Gasaustritt in Räumen [in German]
Propano e butano: misure di protezione in caso di fuga di gas in un locale [in Italian]
Propane et butane: mesures de protection en cas de fuite de gaz dans les locaux [in French]
Illustrated flyer showing what to do in case of indoor leaks of these 2 gases: in the absence of fire, in the presence of fire, and when fire is present close to the liquified gases. This document may also be used as a poster.
Feuillet 11042, Caisse nationale suisse d'assurance en cas d'accident, 6002 Lucerne, Switzerland, 1987. Feuillet 11042. 4p. Illus.

1986

CIS 90-2054 Smith T.A.
Safety and Reliability Directorate
An analysis of a 100 te propane storage vessel
This report describes a fracture mechanics assessment of a storage tank capable of holding 100t of LPG. The object of the analysis is to review the possibility of cold whole vessel failure and to establish whether a leak-before-break condition is more likely than catastrophic failure. Three fracture mechanics concepts were used to establish critical crack sizes using available information on storage conditions, manufacturing standards and material data. Details are given of the vessel design and its manufacture and testing, requirements of relevant design codes for pressurised components, material and mechanical properties, and calculations of stress levels and critical crack sizes. The calculations are also applied to a more typical thin-walled vessel.
United Kingdom Atomic Energy Authority, Wigshaw Lane, Culcheth, Warrington WA3 4NE, United Kingdom, Mar. 1986. 49p. Illus. 17 ref. Price: GBP 5.00.

CIS 89-1798 Propylene
Chemical safety information sheet. Highly flammable gas. Exposure limit: 4000mg/m³. Toxicity: frostbites from contact with liquefied gas; asphyxiant.
Indian Chemical Manufacturing Association, India Exchange, India Exchange Place, Calcutta 700 001, India, 1986. 1p.

CIS 89-1472 Methane
Chemical safety information sheet. Highly flammable gas. Toxicity: asphyxiant.
Indian Chemical Manufacturing Association, India Exchange, India Exchange Place, Calcutta 700 001, India, 1986. 1p.

CIS 89-1324
Sovet Ėkonomičeskoj Vzaimopomo¿či
Occupational Safety and Health - Methods for determining chemical substances in workplace air
Gigiena truda i professional'nye zabolevanija - Metody opredelenija himičeskih veščestv v vozduhe rabočej zony [in Russian]
Methods for the determination of the following hazardous substances in workplace air: dimethyl sulfate, norbornene polychlorinated biphenyls, benzidine, p-chlorophenol, carbon monoxide, chloroacetophenone, water-soluble chromium compounds, tetraethyllead, oil aerosols, epichlorohydrin, volatile hydrocarbons from cutting fluids, solvent naphtha. The gas chromatographic and photometric methods have been adopted as official methods of the Council for Mutual Economic Assistance.
Izdatel'skij otdel, Upravlenija delami Sekretariata SĖV, prospekt Kalinina 56, 121205 Moskva, USSR, 1986. 49p.

CIS 89-410 Butadiene
1,3-butadieeni [in Finnish]
Chemical safety information sheet. Flammable gas. Exposure limit: TLV = 2200mg/m³. Toxicity: asphyxiant; irritates skin, eyes and mucous membranes; narcotic at high concentrations. Mandatory European labelling: F, R13, S9, S16, S33.
Register of Safety Information of Chemical Products, National Board of Labour Protection, Box 536, 33101 Tampere, Finland, Aug. 1986. 2p. Original on microfiche.

CIS 89-73 Ethylene (liquid, gas)
Chemical safety information sheet. Highly flammable gas. Toxicity: asphyxiant; frostbites from liquefied gas; narcosis.
Indian Chemical Manufacturers Association, India Exchange, India Exhcange Place, Calcutta 700 001, India, 1986. 1p.

CIS 88-1803 n-Hexane
n-Hexane [in French]
Chemical safety information sheet. Exposure limit (ACGIH, 1985-86): TLV-TWA = 180mg/m³. Toxicity: may be absorbed through skin; irritation of nose, throat and eyes; neurotoxic effects (peripheral neuropathy).
Canadian Centre for Occupational Health and Safety, 250 Main St. East, Hamilton, Ontario L8N 1H6, Canada, 1986. 19p. 44 ref.

CIS 88-1790 Cyclohexane
Chemical safety information sheet. Exposure limit: ACGIH TLV = 1050mg/m³. Toxicity: irritates skin, eyes and respiratory tract.
Indian Chemical Manufacturers Association, India Exchange, India Exchange Place, Calcutta 700 001, India, 1986. 1p.

CIS 88-961 1,3-Butadiene in air
Guidance note on a laboratory method using pumped molecular sieve adsorbent tubes, thermal desorption and gas chromatography. Scope: suitable for sampling over periods of 10min-8h. Although recommended for the determination of personal exposure, the method may be used for fixed location monitoring by suitable modification. Suitable for the measurement of airborne butadiene gas in the concentration range 0.2-100mg/m³ for samples of 5L of air. The overall precision of the method is expected to be better than 10% (assuming a pump error of 5%). The bias is expected to be better than 5%. Any compound that co-elutes with the butadiene under the operating conditions chosen is a potential interferent. Additional information on 1,3-butadiene: properties, uses, toxicity, first aid.
Health and Safety Executive Sales Point, St Hugh's House, Stanley Precinct, Bootle, Merseyside L20 2QY, United Kingdom, Jan. 1986. 5p. 10 ref. Price: GBP 1.00.

CIS 88-787 1,3-Butadiene
Chemical safety information sheet. Exposure limit: ACGIH TLV = 2200mg/m³. Toxicity: irritates eyes and respiratory tract; liquid causes frostbite.
Indian Chemical Manufacturers Association, India Exchange, India Exchange Place, Calcutta 700 001, India, 1986. 1p.

CIS 88-726 Acetylene
Chemical safety information sheet. Flammable gas. Toxicity: asphyxiant.
Indian Chemical Manufacturers Association, India Exchange, India Exchange Place, Calcutta 700 001, India, 1986. 1p.

CIS 87-1396 Coker D.T., Van Den Hoed N., Moore J.P., Saunders K.J., Tindle P., Eures A.R.
Method for monitoring exposure to gasoline vapour in air
The method involves the pumped sampling of a known volume of air through solid sorbent from which the retained components are thermally desorbed and then analysed by capillary gas chromatography using a flame ionisation detector. For a 2.5L air sample, the method is suitable for monitoring both personal exposures to gasoline vapours and fixed site levels in the range from about 0.2 to about 100mg/m³ per component. Individual hydrocarbons in the C3 to C10 carbon number range can be determined as well as oxygenates such as methanol, t-butanol (TBA) and methyl-t-butyl-ether (MTBE).
CONCAWE, Babylon-Kantoren A, Koningin Julianaplein 30-9, 2595 AA Den Haag, Netherlands, Nov. 1986. 50p. Illus. Appendices.

CIS 87-1413 Ladefoged O.
Nordiska expertgruppen för gränsvärdesdokumentation (Nordic Expert Group for Documentation of Occupational Exposure Limits)
68. n-Hexane
68. n-Hexan [in Danish]
A survey and evaluation of the literature on n-hexane for use as a basis for estimating an occupational exposure limit for n-hexane is presented. Exposure to low concentrations of n-hexane (90-360mg/m³) affects the peripheral nervous system functions and may cause changes in the central nervous system. In experimental animals exposure to high concentrations of n-hexane causes testicular atrophy. A discussion of exposure limits should be based on the neurotoxic effects of n-hexane. No evidence of mutagenic, carcinogenic and teratogenic effects was found.
Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1986. 56p. Illus. 135 ref.

CIS 87-1441 Welker J.R., Martinsen W.E., Johnson D.W.
Effectiveness of fire control agents for hexane fires
Hexane was used as a model to study control and extinguishment of hazardous chemical fires. More than 200 tests were run using 3 low expansion and 1 high expansion foams, and 3 dry chemical agents. A basic test method was developed to compare the effectiveness of fire fighting agents on various liquid fuels. The advantages and disadvantages of the different types of agents are described.
Fire Technology, Nov. 1986, Vol.22, No.4, p.329-340. Illus. 2 ref.

CIS 87-825 Hexane
Chemical safety information sheet. Exposure limits recommended in Ontario: ACGIH(USA, 1985-86) TLV = 180mg/m³ for n-hexane and 1,800mg/m³ for other isomers. All isomers of hexane have narcotic effects and may produce dermatitis on repeated contact. Only n-hexane appears to produce neurological effects (peripheral neuropathy) on chronic overexposure. Extremely flammable liquid. Transportation code: UN 1208 (II,II).
Industrial Accident Prevention Association, 2 Bloor St. West, Toronto, Ontario M4W 3N8, Canada, 1986. 2p.

CIS 87-591 Fedtke N., Bolt H.M.
Detection of 2,5-hexanedione in the urine of persons not exposed to n-hexane
The neurotoxic n-hexane metabolite 2,5-hexanedione was detected by gas chromatography-mass spectrometry in urine samples from human subjects not exposed to n-hexane or related hydrocarbons. The amounts detected ranged from 0.12 to 0.78mg/L and depended on the pH employed for acid hydrolysis of the samples.
International Archives of Occupational and Environmental Health, 1986, Vol.57, No.2, p.143-148. Illus. 18 ref.

CIS 87-106 Methylcyclohexane
Méthylcyclohexane [in French]
Generalities; physical properties; combustion data; suppression of ignition sources; protective equipment; pertinent legislation; fire and explosion hazards; preventing spills and emission of vapours.
Face au risque, Mar. 1986, No.221, 2p. insert.

CIS 86-1362 Veržbickaja Ė.A., Hvostikova A.A.
Gas-chromatographic determination of dicyclopentadiene in air
Gazohromatografičeskoe opredelenie diciklopentadiena v vozduhe [in Russian]
A method was developed to permit the determination of dicyclopentadiene (DCPD) and cyclopentadiene (CPD) in a single sample. Air is drawn through a glass tube packed with silica gel, the adsorbed hydrocarbons are washed off the silica gel with acetone and a sample of the washings is injected into a Tswett-100 chromatograph equipped with a flame-ionisation detector. A 3mm by 3m column of 1,2,3-tris(cyanoethoxy)propane on 60-80-mesh celite is used. Separation of the compounds of interest takes 18-20L min. The limit of detection of DCPD is 0,1mg/m³ in a 10-12L sample of air. The precision of the method is 15-20%.
Gigiena i sanitarija, June 1986, No.6, p.43-45. Illus. 5 ref.

CIS 86-1225 Filling of fixed reservoirs with liquefied petroleum gas (LPG) from tanker trucks
Déchargement de camions-citernes de gaz de pétrole liquéfiés (GPL) en réservoirs fixes [in French]
This technical information note describes the safety measures, unloading procedures and emergency measures (in case of fire) that apply during the filling of a fixed reservoir from a tanker truck. Survey of regulations in Belgium.
Promosafe, Jan.-Feb. 1986, Vol.12, No.1, p.57-63. Illus. 2 ref.

CIS 86-1224 The design and construction of manifolds using acetylene gas to a maximum working pressure of 25 bar
This code of practice covers all the technical and safety aspects of installations using acetylene gas.
British Compressed Gases Association, 21 St. James's Square, London SW1Y 4JF, United Kingdom, 1986. 23p. Illus. 9 ref. Appendices.

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