Saturday, November 27, 2010

SAMPLING PROCEDURES CHEMICAL TANKERS -- CAPT AJIT VADAKAYIL

                      
   SAMPLING PROCEDURES -- CAPT AJIT VADAKAYIL


Chemical cargo samples are evidence of the condition of the product during various phases like loading, passage, discharging .

Sampling is done to protect against cargo claims especially when barges are involved.  How many samples are taken depends on the type of cargo.

Samples will normally be drawn prior to loading and upon completion. Similarly, at the discharge port, prior to discharge. Shore tank samples are not witnessed by ship staff , and is done by an approved surveyor.

At the start of the transfer one sample to be taken at the ships manifold on shore side with the ships manifold valve SHUT in a clear glass bottle, visually checked and retained. The Chief officer or the duty officer must witness this important sample. If the sample is milky or obvious foreign matter is present , then take another sample .The valve to the tank should be opened up only if the manifold  sample is acceptable.

So it is important to know the type of pump used ashore for pumping. If a screw / gear pump or reciprocating pump is used the cargo hose will rupture. Centrifugal pump will not cause any such problems.

Compressed air used for line blowing must be dry. Shore line is usually pigged. The pig must be inspected if feasible and checked to be  free of moisture , odour or cargo residues.

On the sample bottle label the ships name, voyage number, date, location, type of sample (manifold, tank etc ), product name. Retention period is one year. Prior to disposal take permission from operator.

Cargo and Fuel samples are not to brought into the accommodation. 

The vessel is to keep a full set of samples for owners benefit, these are to be retained on board in sealed and marked bottles for a period of 12 months after completion of dischg, after which they can be disposed in a proper manner. Reactive samples must not be placed together

Before discharge, samples are to be taken from the ship’s side of the valve with the manifold valve closed.  

In some terminals, depending on the product, the vessel may be requested to load “foot samples”. Foot sample consist of a small amount of the product being loaded to a depth sufficient to enable the cargo surveyor to take a complete representative sample from the ship’s tanks. These samples will then be delivered to the laboratory ashore for quality testing regarding contamination. When loading foot samples, ensure the loading rate is suitable as regards loading only the minimum quantity requested by the surveyor. The ullage/sounding must be constantly monitored to ensure that excessive product is not loaded.

These samples will then be delivered to the laboratory ashore for quality testing wrt contamination. When loading foot samples, ensure the loading rate is suitable. Also load only the minimum quantity required by the surveyor. The ullage must be constantly monitored to ensure that excessive product is not loaded. If first foot samples are taken a log entry should be made.

If there is an alleged claim for contaminated cargo the Master must: -

Immediately call in the local representative of the vessel’s P&I club.
Notify Operator about the alleged claim and confirm that the P&I representative is attending.
Take good care of vessel’s sealed cargo samples, i.e.
before loading sample
first foot sample
before discharge sample
 --and not hand them to anyone, except in agreement with the P&I representative, and only against written receipt.
Assist the P&I representative in connection with the relevant (joint) surveys and analysis.
Sign no document related to the alleged contamination other than after consultation with the P&I representative.

Recapitualtion:

Sampling at--

Loadport:Manifold foot sample with manifold valve shut
First foot inside tank if applicable
Tank samples at completion of loading.
In case the manifold composite sample is no good take the initial contents into one tank only and record it in the remarks column of SOF.

Disport:Sample of each tank.
Manifold sample at start of discharging
Sample bottle lable must have the date , name and signature of chief officer and surveyor
Sampling is a risky process. When taking samples from pipeline drain cocks ensure the line is depressurized.  The person must wear proper PPE as justified after reading the MSDS sheets.
UTI samplers can be used to do closed sampling as long as the extension tube is peforated along the entire length.

On ships with nitrogen plant this UTI tube extension ( for 30 minute static dissipation time saving ) has no value and packs huge nuisance potential, IF  it is only perforated at the top , and not along entire length.

a)high mp cargoes will freeze inside and will restrict sampler from going down by gravity.

b)source of contamination.

c)ullage for foaming cargoes like veh=g oils/ molasses is not representative of tank content.

d)temperature of UTI is not representative of tank content.

e)with sediment cargoes UTI ullage is not accurate.

f) first foot sample failure can occur due to no fault of ship.

g) the wedge formula used for calculating yard provided ullage tables becomes redundant –as the formula is based on tape assuming vertical position by gravity.

h)certain cargoes like latex can never be loaded , though possible to load by COF and SS resistance tables.

i) few litres of heavier water at tank bottom will be pushed up into non perforated extension pipe by lighter inmixible cargo on top –and UTI readings will indicate full tank of water while the cargo tank actually has negligible water. Wrong bill of lading figures can cause financial disaster.

j) The slop tank water interface will not be accurate on annex 1 ships, and entries in oil record book will be wrong wrt oil and water interface quantities.

Sample bottles must be properly stowed in a dedicated sample locker. Samples must never ever be brought into the CCR or accommodation living space. The sample locker racks and cell divisions must be fully resistant to the chemical cargoes intended to be stowed. If a bottle breaks inside the sample locker it must still be contained by a SS tray, and should not seep out on deck. The locker should have high and low vents for high and low VD gases. There must be 2 lockers so that incompatible bottles are stowed together. Samples must be in glass bottles and not polythene bottles.

Certain chemicals like propylene oxide and acrylic acid samples are disposed off as soon as the cargo is discharged without claims , due to their hazardous nature.

DEFINITIONS:

All-levels sample: A sample obtained by submerging a stoppered beaker or bottle to a point as near as possible to the draw-off level, then opening the sampler and raising it at a rate such that it is
approximately three-fourths full as it emerges from the liquid. An all-levels sample is not necessarily a
representative sample because the tank volume may not be proportional to the depth and because the operator may not be able to raise the sampler at the variable rate required for proportional filling. The rate of filling is proportional to the square root of the depth of immersion

Bottom sample: spot sample taken from the product at or close to the bottom of a tank or container.

Clearance sample: spot sample taken at a specified distance below the bottom of the tank outlet. Composite sample (weighted): sample obtained by combining a number of spot samples in defined proportions so as to obtain a sample representative of the bulk of the product

Dead bottom sample: spot sample taken from a point on the tank bottom. Note: Such samples require the use of a device with a bottom opening, commonly used for free water samples.

Drain sample: sample obtained from the water draw-off point on a storage tank.
‘first foot’ sample: sample drawn from a vessel tank early during a cargo loading, when the depth of product in the tank(s) is approximately 300 mm, (one foot).

Note: Regulations concerning the dissipation of static charge normally require the cessation of pumping and a relaxation time of thirty minutes before ‘first foot’ samples are drawn.
Lower sample: spot sample taken at a level of five-sixths of the depth of liquid below the top surface Middle sample: spot sample taken at a level of one-half of the depth of liquid below the top surface Multi-tank composite sample: a mixture of individual samples or composites of samples that have
been obtained from several tanks or ship/barge compartments containing the same grade of material

Running sample: sample obtained with an apparatus which accumulates the sample while passing in both directions through the total liquid height, excluding any free water.Note: The apparatus passes through the liquid at such a rate that it is approximately 80% full as it emerges from the liquid.

Single tank composite sample: blend prepared from the upper, middle and lower samples from a single tank

Skim sample (surface sample): spot sample taken from the surface of the liquid.

Spot sample: sample taken at a specific location in a tank or from a pipeline.

Suction level sample (outlet sample): sample taken at the lowest level from which liquid hydrocarbon is pumped from the tank.

Tap sample: A spot sample taken via a tap, typically located on the side of the shore tank.

Top sample: spot sample obtained 150 mm (6”) below the top surface of the liquid

Upper sample: spot sample taken at a level of one-sixth of the depth of liquid below the top surface

Zone sample (core sample, flow through sample): sample taken as that part of the liquid column which is contained within the whole height of the sampler when it is sealed at a single spot location within a tank.--

CAPT AJIT VADAKAYIL ( 28 YEARS IN COMMAND )
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3 comments:

  1. hi k,

    JEWS HAVE BEEN SITTING ON THEIR ASSES AND MAKING MONEY OUT OF THIN AIR FOR CENTURIES

    INSURANCE WAS A NOBLE THING-- AS PER THE LAWS OF MANU

    MANU WAS THE FOUNDER OF INSURANCE LAWS ( DHARMATHAT ) MORE THAN 10,000 YEARS AGO --

    NOT 3700 YEARS AGO BY BABYLONIAN HAMMURABI AS WRITTEN BY THE WHITE HISTORIANS

    THE CALICUT KING HAD CUSTOMS / INSURANCE OUTPOSTS AT ADEN/ SALALA/ MECCA OASIS AND MANY OTHER PLACES .

    MANU HAS BEEN CONVERTED INTO A BIGOT WHO WAS ALL OUT TO POUR MOLTEN LEAD INTO THE EARS OF DALITS ( FOUL LIES ) , BY JEW ROTHSCHILD USING HIS AGENTS LIKE EVR PERIYAR AND BR AMBEDKAR .. YOU SHOULD SEE THE WAY DALIT KANCHA ILIAH NAY SHEPHERD FROTHS FROM HIS MOUTH ON TV …

    IN THE TIMES OF MANU NO CASTE SYSTEM EXISTED- ONLY VARNA EXISTED.

    CASTE SYSTEM AND UNTOUCHABILITY WAS CREATED BY THE WHITE INVADER.

    http://ajitvadakayil.blogspot.in/2011/07/untouchables-capt-ajit-vadakayil.html


    MANU OF 8300 BC HAS BEEN KICKED FORWARD IN TIME TO 1000 BC BY THE BASTARD WHITE HISTORIANS

    THE INSURANCE LAWS OF MANU WRITTEN 103 CENTURIES AGO WERE FURTHER HONED BY CHANAKYA 2300 YEARS AGO.
    http://ajitvadakayil.blogspot.in/2014/08/chanakya-taxila-university-professor.html

    Manu’s insurance laws addressed genuine losses whereby the society collectively bears the loss/damage to one person/family and minimize the adverse effect that loss.

    There are several stories where the King provides monetary help to the persons who suffered loss due to natural calamities and this was nothing but an assurance that the State will look after you at the time of any adversity .

    This assurance is a form of insurance where the money collected from several tax payers has been used to minimize the losses of specific group which suffered loss.

    With the passing time the concept of insurance had been refined and lead to the introduction of documentation to get the assurance of loss bearing for specified purposes.

    ALL OVERSEAS SEA TRADING COMERCIAL LAWS OF MANU ARE LIFTED BY HAMMURABI. MANU CREATED THE FIRST CHARTER PARTIES, BILLOF LADING, CARGO MANIFESTS, WARRANTY LIMITS, RISK MANAGEMENT, RULES OF SAMPLING, RULES OF CLAIMS, LIABILITY CLAUSES, GENERAL AVERAGE AND METHODS OF ADDRESSING COMMERCIAL LOSSES

    WHO KNOWS BETTER THAN CAPT AJIT VADAKAYIL

    MANUs RULES WERE THE FOUNDATION OF SPICE RADE BY ANCIENT KERALA NAVIGATORS.

    HERE ARE SOME MODERN RULES FOR WHICH MANUs RULES WERE THE BASE.

    http://ajitvadakayil.blogspot.in/2010/12/bill-of-lading-on-chemical-tankers-capt.html

    http://ajitvadakayil.blogspot.in/2010/12/cargo-claims-and-losses-on-chemical.html

    http://ajitvadakayil.blogspot.in/2010/11/sampling-procedures-chemical-tankers.html

    http://ajitvadakayil.blogspot.in/2011/10/commercial-matters-on-chemical-tankers.html

    capt ajit vadakayil
    ..

    ReplyDelete

  2. Aditya Upadhyay
    October 19, 2017 at 1:51 AM
    Sir, I have always been curious about one thing? Have you ever received death threats due to your revelations? How do you manage to protect yourself and your family against these evil forces?
    ###############
    Capt. Ajit Vadakayil
    October 19, 2017 at 6:30 AM

    I HAVE RECEIVED DEATH THREATS AND JAIL THREATS AND SACKING THREATS AT SEA-- FOR DOING MY JOB AS A SHIP CAPTAIN. FOR TRYING TO SAVE LIFE SEA .

    I JUST TOLD YOU ABOUT THE NICKEL ORE AND HYPOCHLORITE EPISODE --JUST TWO AMONG HUNDREDS OF INCIDENTS AT SEA--

    I WON ALL MY FIGHTS TILL NOW – SECRET—I STICK TO MY RIGHTEOUS GUNS

    WHEN I LOOK BACK I AM PROUD OF ALL MY SCARS ( MENTAL )

    I INTRODUCED SAMPLING PROCEDURES AT SEA -ON CHEMICAL TANKERS

    I NEVER FOLLOWED THE RULES SET BY THE WHITE MAN -- I HAD MY OWN RULES –BETTER ONES

    EVERYBODY SAMPLES CARGO ONCE IT ENTERED THE TANKS.

    I SAMPLED CARGO OUTSIDE MY SHIP-- MEANING -- THE SAMPLE COCK OUTSIDE THE SHUT MANIFOLD VALVES--BEFORE IT EVEN ENTERED THE SHIPS PIPELINE

    http://ajitvadakayil.blogspot.in/2010/11/sampling-procedures-chemical-tankers.html

    ONCE AT A PORT IN IRAN, I WAS THREATENED WITH PHYSICAL INJURY AND JAIL.

    MY SHIP WENT TO A QUAY WHICH WAS OPERATING FOR THE FIRST TIME AFTER IRAN/ IRAQ WAR

    MY SHIP WAS TO LOAD 99.99% SULPHURIC ACID

    http://ajitvadakayil.blogspot.in/2012/06/sulphuric-acid-carriage-dangers-on.html

    I WAS WARY OF THE SHORE PIPELINE CONTENT-- A LARGE PIPELINE RUNNING SEVERAL KILOMETERS --WHICH DID NOT HAVE PIGGING FACILITIES

    http://ajitvadakayil.blogspot.in/2010/12/pigging-on-chemical-tankers-capt-ajit.html

    http://ajitvadakayil.blogspot.in/2012/06/pipeline-cleaning-and-blowing-on.html

    INSTEAD OF SULPURIC ACID-- I GOT PHOSPHORIC ACID IN MY SAMPLE BOTTLE

    I KNOW JUST BY SIGHT AND SMELL – EXPERIENCE RULES

    http://ajitvadakayil.blogspot.in/2010/11/phosphoric-acid-on-chemical-tankers.html

    I DECLARED--UNLESS I GET SULPHURIC ACID AT MY MANIFOLD VALVE COCK , I WILL NOT OPEN THE VALVE TO LET CARGO INTO THE TANK

    THE ENTIRE IRANIAN FORCES FROM SHORE, CAME ON BOARD TO CONVINCE ME THAT I WAS WRONG-- THEY WERE ALL IRANIANS FIRST ( SEE- THIS IS EFFECT OF WAR BONDING )

    THEY DELETED "SAINT" NAME ( BRITISH FLAG SHIP ) AND PAINTED " SHAITAN "--AND MY CREW AND OFFICERS ( ALL EUROPEANS ) GOT TERRIBLY AFRAID . I WAS THE ONLY INDIAN.

    VERBALLY I WAS THREATENED WITH PHYSICAL INJURY ( BREAKING BONES ) -- THEY CALLED UP MY OWNERS ( ROTHSCHILDs AGENT ) IN LONDON , AND CHARTERERS IN FRANCE ( ROTHSCHILDs AGENT ) --AND EVEN THEY ORDERED ME TO LOAD.

    SEE THE COSY RELATIONSHIP BETWEEN JEWS AND HARDCORE MUSLIMS . THIS JEW OWNER ( AGENT OF ROTHSCHILD ) VACATED THE WORLD TRADE CENTRE A WEEK EBFORE IT CAME DOWN.

    SORRY, IF I LOAD A MIX OF PHOSPHORIC ACID AND SULPHURIC ACID-- MY SHIP WILL DEVELOP A HOLE AND SINK AT SEA

    http://ajitvadakayil.blogspot.in/2012/05/stainless-steel-chemicaltankers.html

    ALL WERE TRYING TO CONVINCE ME ( MY SHORE BOSSES ) THAT IT IS OK-- BUT THEN THEY HAVE SHIT FOR BRAINS

    http://ajitvadakayil.blogspot.in/2010/04/passivation-on-stainless-steel-chemical.html

    I CALLED MY P&I CLUB FROM LONDON -- AFTER A TWO DAY DELAY--I DID A MELTING POINT TEST ( USING MY CABIN FRIDGE ) UNDER VIDEO CAMERA , AND PROVED THAT THE IRANIAN SAMPLE TEST CERTIFICATE WAS BULLSHIT

    http://ajitvadakayil.blogspot.in/2011/09/high-melting-point-cargoes-on-chemical.html

    CONTINUED TO 2

    ReplyDelete
    Replies
    1. CONTINUED FROM 1


      TODAY I DECLARE -- THIS BLOGSITE IS THE MOST PRICELESS INTERNET SITE-- PAST , PRESENT AND FUTURE .. AND THERE WILL NEVER EVER BE A SHIPCAPTAIN LIKE VADAKAYIL- PAST PRESENT AND FUTURE

      AM I BOASTING ?--SO BE IT!

      HUMILITY HAS NEVER BEEN MY STRONG POINT.. I WOULD LIKE TO BE HUMBLE IF I DID NOT HAVE TO FIGHT WITH CUNTS DAY AFTER DAY --TO SAVE LIFE ON SHIP .. MY JOB AS SHIP CAPTAIN IS FIRST "PROTECT LIFE ON BOARD" .

      I NEVER LOST TRACK OF THIS WHILE IN THE CHAKRAVYUH OF ACTIVITY TRAPS ..

      http://ajitvadakayil.blogspot.in/2009/07/real-work-and-activity-traps-capt-ajit.html

      IF THE BASTARDS IN GOOGLE WANT LET THEM SHUT MY BLOGSITE DOWN. THEY MUST KNOW MY REAL REVELATIONS HAVE NOT EVEN STARTED ..


      TRUTH LIKE THE SUN CANNOT BE HIDDEN FOR LONG

      CHOOTS , CUNTS, PRICKS CANNOT EXHUME THE TRUTH. PERCEPTION , INTELLIGENCE AND BALLS / SPINE IS REQUIRED

      SO GOOGLE CAN CONTINUE BEING THE SLAVE OF JEW ROTHSCHILD AND BURY MY POSTS USING ALGORITHMS-- NO PROBLEMS.

      TO CUT A LONG STORY AT IRAN SHORT-- DOZENS OF TRUCKS WERE USED TO REMOVE PHOSPHORIC ACID AT THE SHORE VALVE --NEXT TO MY SHIPs MANIFOLD.

      FINALLY WHEN I GOT SULPURIC ACID IN MY SAMPLE BOTTLE --I LET THE CARGO INTO MAY TANKS

      AFTER DISCHARGE IN FRANCE, EACH OF MY CARGO TANKS HAD SEVRAL TONNES OF LOOSE RUST. REASON? SULPHURIC ACID MIXED WITH PHOSPHORIC ACID CAN BORE A HOLE THROUGH STAINLESS STEEL ..

      WHAT IS SHIPs STAINLESS STELL- -IT IS JUST ORDINARY STEEL HAVING A MICROFILM VENEER -- THIS TOUGH MICRO LAYER OF CHROMIC OXIDE PATINA IS WHAT PROTECTS

      WHO INVENTED STAINLESS STEEL?

      WE INDIANS

      CHECK OUT THE FIRST SENTENCE IN THE POST BELOW

      http://ajitvadakayil.blogspot.in/2012/05/stainless-steel-chemicaltankers.html

      WHEN I WROTE MY COMPANYs CHEMICAL MANUAL-- WHITE JEWS ( POWERS THAT BE FROM ROTHSCHILDs SHELL COMPANY ) REJECTED IT FLAT-- THE REASON WAS " SHIVA LINGAM " MENTIONED IN THE POST BELOW

      http://ajitvadakayil.blogspot.in/2010/06/basics-for-chemical-tankerman-capt-ajit.html

      SEE WE INDIANS ARE DIRTY PRICK WORSHIPING COOLIES --UNFIT TO WRITE A TECHNICAL MANUAL , RIGHT ?

      WRONG !

      FUCK OFF YOU CUNTS--INDIA RULES !

      WE WERE SLAVES FOR 800 YEARS BECAUSE OF PEOPLE LIKE GUJJU NO 1 AND GUJJU NO 2 -- WHO PRAYS IN FRONT OF GANDHI / AMBEDKAR STATUTES AS SOON AS HIS BEADY EYES SPOTS A CAMERA ..

      INDIA IS NOW FREE AND PROUD!

      THIS BLOGSITE WILL ENSURE --THAT INDIA IS A SUPERPOWER IN 16 YEARS. SORRY GUJJU NO 2 , WE HAVE DISCARDED THE GANDHI CHARKHA .. WE NOW WILL FOLLOW BHAGAWAD GITA –MOONH TODD JAWAB IF CHINESE DARE TO ATTACK INDIA.

      DOKLAM DEFUSED ONLY BECAUSE THIS BLOGSITE GAVE A SHOCK TO PRESIDENT XI AND HIS SIDE KICK THAT BASTARD EDITOR OF GLOBAL TIMES HU XIJIN— EVERYBODY KNKWS THIS -- NOT BECAUSE GUJJU NO 2 SHOWED HIS 56 INCH CHEST

      WATCH THIS SPACE !

      capt ajit vadakayil
      ..

      Delete