|
Craig Trettevik - Sound Testing, Inc MARINE C EMIST CERTIFICATE
<br />PO Box 16204, Seattle, WA 98116
<br />AA Serial 688-00145
<br />Office: Fax:
<br />Cell: 206-313-6933 Email: ctretvik@yahoo.com \W Page 1 of 1
<br />Teknotherm Teknotherm Feb 24, 2023
<br />Survey Requested by Vessel Owner Agent Date
<br />Gulf Cajun Tug Port of Everett
<br />Vessel Type of Vessel Specific Location of Vessel
<br />Freon x 3 02, LEL, Visual, CO, H2S, VOC's 14:05
<br />Last Three 3 Loadings Tests Performed Time Survey Completed
<br />Inspected Spaces: pia oz % LEL co H2S voc's Safety Designations:
<br />Group 1: 20.9% 0% 0 ppm 0 ppm 0 ppm ATMOSPHERE SAFE FOR WORKERS
<br />Bridge Weather Deck, SAFE FOR HOT WORK
<br />Mate's Stateroom (Stbd),
<br />Opposite Stateroom (Port),
<br />Electronics Room (01 Deck),
<br />Mn Dk Passage &
<br />Air Handler Rm
<br />Two Air Handlers,
<br />Two Condensor Units,
<br />& Associated Piping
<br />Limits of Detection
<br />CO & H2S & VOC = 1 ppm (Meter Calibrated: GfG G460 (s/n 13121998) 0900-24 Feb 23)
<br />Entire Vessel Instructions
<br />* Local Shifting is allowed if the SCP rechecks for 02, LEL, CO, and Oil/Combustibles before work restarts.
<br />" During hot work, maintain mechanical ventilation in occupied hot work spaces & post Fire Watches as directed by the SCP.
<br />" Keep all hot work off and isolated from all adjacent spaces, pipes, and hollow structures that are not certified for hot work.
<br />In the event of physical or atmospheric changes affecting the STANDARD SAFETY DESIGNATIONS assigned to any of the above
<br />spaces, this Certificate is voided; spaces not listed on the Certificate are not to be entered unless authorized on another
<br />Certificate and/or maintained in accordance with OSHA 29 CFR 1915; or if in any doubt, immediately stop all work and contact
<br />the undersigned Marine Chemist. Unless otherwise stated on the Certificate, all spaces and affected adjacent spaces are to be
<br />reinspected daily or more often as necessary by the competent person in support of work prior to entry or recommencement of
<br />work.
<br />QUALIFICATIONS: Transfer of ballast, cargo, fuel, or manipulation of valves or closure equipment tending to alter conditions in pipelines, tanks, or compartments subject to gas accumulation unless specifically
<br />approved Is Certificate, requires inspection and a new Certificate for spaces so affected. All lines, vents, heating coils, valves, and similar enclosed appurtenances are considered "not safe' unless
<br />otherwise specifically designated. Movement of the vessel from its specific location voids the Certificate unless shifting of the vessel within the facility has been specifically authorized on this Certificate.
<br />STANDARD SAFETY DESIGNATIONS (partial list, paraphrased from NFPA 306):
<br />S: In the compartment or space so designated (a) the oxygen content of the atmosphere is at least 19.5 percent and not greater than 22 percent by volume; (b) the
<br />concen ra Ion o amme a ma erla s Is elow 10 percent of the lower explosive limit; (c) any toxic materials in the atmosphere associated with cargo, fuel, tank coatings, and inerting mediums, or fumigants are
<br />within permissible concentrations at the time of the inspection.
<br />NOT SAFE FOR WORKERS: In the compartment or space so designated, entry is not permitted.
<br />S: In the compartment or space so designated, entry for work is permitted only if conditions of proper protective equipment, or clothing, or time, or all of the aforementioned, as
<br />appropriate, are as spec) le .
<br />SAFE FOR HOT WORK: In the compartment or space so designated (a) the oxygen content of the atmosphere is not greater than 22 percent by volume; (b) the concentration of flammable materials in the
<br />a mosp ere Is ess an 0 percent of the lower explosive limit; (c) the residues, scale, or preservative coatings are cleaned sufficiently to prevent the spread of fire and are not capable of producing a higher
<br />concentration than permitted by (a) or (b); (d) all adjacent spaces containing or having contained flammable or combustible materials are sufficiently cleaned of residues, scale, or preservative coatings to
<br />prevent the spread of fire or they are to be inerted. Ship's fuel tanks, lube tanks, or engine room or fire room bilges, or other machinery spaces are to be treated in accordance with the Marine Chemist's
<br />requirements.
<br />SAFE FOR LIMITED HOT WORK: In the compartment or space so designated (a) portions of the space are to meet the requirements for Safe for Hot Work and Partial Cleaning, as applicable; (b) the space is
<br />o be me e , a jacen spaces meet the requirements for Safe for Hot Work, and hot work is restricted to specific locations; (c) portions of the space are to meet the requirements for Safe for Hot Work, as
<br />applicable, and the nature of the work or type of hot work is to be limited or restricted.
<br />NOT SAFE FOR HOT WORK: In the space or compartment so designated, hot work is not permitted.
<br />CHEMIST'S ENDORSEMENT:This is to certify that I have personally determined that all spaces in the foregoing list are in accordance with NFPA 306, Standard for the Control of Gas Hazards on Vessels, and
<br />have found the condition of each to be in accordance with its assigned designation.
<br />The undersigned acknowledges receipt of this Certificate under NFPA 306 and understands conditions and limitations This Certificate is based on conditions existing at the time the inspection herein set forth was completed and is issued
<br />under which it was issued, and the requirements for maintaining its validity. subject to compliance with all qualifications and instructions.
<br />77 /
<br />Teknotherm Feb 24, 2023 688
<br />Authorized Representative Company Date Signed Marine Chemist CMC No.
<br />
|