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Last update: 2026/06/02

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A pump used both for an oily water separator and sludge transfer

Tec No.:TEC- 172 (75kb)

Contact:

Issued:21 Dec 1995

Recently, several ships have been detained under port state control (PSC) inspections due to dirty condition of an oily water separator for non conformity with the requirements of MARPOL Annex I. The dirty condition of the oily water separator was caused by the bilge pump which was in common use as a sludge pump for sludge transfer. The common use of the pump is acceptable for ships whose keel laid before 31 December 1990, but it should be kept always in clean condition through careful maintenance. Therefore, we would like to recommend you to keep the oily water separators clean giving the following instructions to your masters and chief engineers in order to avoid unnecessary trouble, even detention at PSC. 1. Sludge in sludge tanks should not be disc

This Technical Information became null and void on 31 Dec 2001.

Exemption from Installation of Radio Direction Finder and Radio Equipment for homing on Bahamas Flag Ships

Tec No.:TEC- 171 (102kb)

Contact:

Issued:28 Dec 1995

The 1988 Amendments to the 1974 SOLAS specify in Regulation V/12(p) and (q) therequirements for installation of a radio direction finder and radio equipment for homing, and for exemption from their installation under certain conditions. In this respect, the Bahamas Government has just notified the Society that the Government permits the Society to grant exemption from installation of a radio direction finder and radio equipment for homing on board a Bahamas ship if it complies with certain conditions specified by the Government and to issue an exemption certificate to it. Shipowners or shipbuilders who may wish to apply for exemption from installation of a radio direction finder and radio equipment for homing for a Bahamas ship are requested to submit

This Technical Information became null and void on 27 Jun 2001.

Required Qualifications and Numbers of Radio Personnel on board GMDSS Ships

Tec No.:TEC- 169 (178kb)

Contact:

Issued:20 Oct 1995

The requirements of certain flag governments for the subject are summarized in NK Technical Information No.162 of 1 June 1995 and No,164 of 3 August 1995. It should be noted that they have been revised and superseded by this issue, and the previous issues are cancelled accordingly. The revised Technical Information not only reflects the requirements of the Panamanian Government which we have received since the issue of the previous Technical Information No,164 but also rectifies some incorrect expressions in the sameTechnical Information. Attachment: Revised attachment of NK Technical Information No.164 Attachment (Revised) Required Qualifications and Numbers of Radio Personnel on board GMDSS Ships The qualifications and numbers of radio pers

This Technical Information became null and void on 31 Dec 2001.

Condition Survey for Bulk Carriers over 18 years old of ages entering into Brazilian Ports (No.2)

Tec No.:TEC- 165 (212kb)

Contact:MID

Issued:25 Jul 1995

Please refer to our previous Technical Information No.161 dated 10th May 1995. The Brazilian Government (DPC) has recently issued Decree No.0007 on Condition Survey for aged bulk carriers which has come into force on 26th June 1995.The procedures for the Condition Surveys which we noted through the information from our Rio de Janeiro Office as well as our clients are as mentioned below. 1. Application of Condition Survey (1) Ship's age is counted from the "Year of built" mentioned in the Register Book issued by the Lloyd's Register of Shipping. (2) Condition Survey shall be applied at the first entry into a Brazilian Port after 26th June 1995. In case where this Condition Survey is carried out with satisfactory result, the Condition Survey at next ent

This Technical Information became null and void on 26 Sep 2001.

Requirements of Maltese Government for Immersion Suits and Thermal Protective Aids

Tec No.:TEC- 160 (79kb)

Contact:

Issued:28 Apr 1995

The requirements of the Maltese Government for immersion suits and thermal protective aids for Maltese registered cargo ships not equipped with totally enclosed/free-fall launching lifeboats, whitch the Society has recently been informed by the Maltese Government, are shown below. It is recommended that necessary arrangements shall be made for Maltese flag ships owned and/or operated by you in accordance with the requirements. 1.On ships equipped with only liferafts of the throw-in type, one immersion suit should be provided for every person on board. 2.If a ship equipped with open-type lifeboats or davit-launched liferafts engaged on voyages in the following areas, the ship may carry at least three immersion suits for every lifeboat and liferaft and

This Technical Information became null and void on 31 Aug 2007.

Measures for Providing Heading Information at Emergency Steering Positions

Tec No.:TEC- 156 (71kb)

Contact:

Issued:10 Jan 1995

With regard to the "measures for providing heading information, particularly for providing compass readings at emergency steering positions" required under the revised Regulation V/12(f) of the 1989 revision of the 1974 SOLAS Convention, the interpretations of the Society and of the governments whose interpretations are different from that of the Society are shown in NK Technical Information No.144 and No.152. In this respect, the Isle of Man Government has recently notified the Society of its interpretation that a gyro-repeater should be fitted permanently in the emergency steering positions as a measure for compass readings to be taken there. Accordingly, for a ship being constructed with the Isle of Man registry on and after the issue of this circular

This Technical Information became null and void on 31 Aug 2007.

Measures for Providing Heading Information at Emergency Steering Positions

Tec No.:TEC- 152 (56kb)

Contact:

Issued:31 Oct 1994

With regard to the"measures for providing heading information, particularly for providing compass readings at emergency steering positions" required under the revised Regulation V/12(f) of the 1992 revision of the SOLAS Convention, the interpretations of the Society and of some flag governments are shown in NK Technical Information No.144. In this respect, the Argentine Government has recently notified the Societyof its requirement that a gyro repeater should be fitted permanently in theemergency steering positions as a measure for compass readings to be taken there. Accordingly, for a ship being constructed with the Argentine flag on and after the issue of this circular and having emergency steering positions in it, special attention should be paid to

This Technical Information became null and void on 31 Aug 2007.

Two-way VHF Radiotelephone Apparatus insatalled on board inaccordance with Requirements of 1988 Ammendments to 1974 SOLAS

Tec No.:TEC- 149 (87kb)

Contact:

Issued:24 Oct 1994

Reference is made to NK Technical Information No.134 (issued at 10 Appril 1994), by which it is informed that as a scheme of phasing-in GMDSS apparatusradio life-saving apparatus for survival craft are to be replaced by two-way VHF radiotelephone apparatus and radar transponders. All the necessary arrangements are believed to be taken for installation of these apparatus. The two-way VHF radiotelephone apparatus need not be of intrinsically safe type so long as these apparatus are used as designed by the SOLAS convention. To the knowledge of the Society, there are no intrinsically safe two-way VHF radiotelephone apparatus type-approved by NK or by the Administrations. These apparatus may be used for on board communications for other purposes than tho

This Technical Information became null and void on 31 Aug 2007.

Arrangements for Supplying Heading Information to Emergency Steering Positions for Non-Japanese Ships

Tec No.:TEC- 144 (113kb)

Contact:

Issued:15 Aug 1994

The revised Regulation V/12(f) of the 1974 SOLAS as amended which entered into force on 1 February 1992 requires ships with emergency steering positions to be provided with at least a telephone or other means of communications for relayingheading information to such positions, and also requires ships of 500 tons gross tonnage and upwards constructed on and after 1 February 1992 with such positions to be provided with "arrangements for supplying visual compass readings" to such positions. The details have now been developed for the "arrangements for supplying visual compass readings" of the revised Regulation V/12(f) on the basis of the instructions the Society has recently received from the flag administrations as per below. For a ship to be constructed t

This Technical Information became null and void on 27 Jun 2001.

Additional Requirements of GMDSS for Greek flag ships

Tec No.:TEC- 136 (94kb)

Contact:

Issued:10 May 1994

The additional requirements of GMDSS for the Greek flag ships have been notified by the Greek Government. These requirements are re-produced below, and surveyors of the Society will ascertain compliance with these requirements when carrying out a SR survey. Should you have any questions in this respect, please contact Equipment & Materila Department of the Society. 1. GMDSS Radio Equipment All GMDSS radio equipment to be installed in accordance with the SOLAS requirements shall be of a type approved by the Greek Government. 2. Drawings Shipowners shall submit the following drawings to the Greek Government for approval befor GMDSS radio equipment are installed on ships: (1) Arrangement of Antennas (2) Arrangement of GMDSS radio equipment (3) W