“Reliable Partner for Your Corotion Sulution Needs”

 

Pelanggan  Kami  

PT.  ANDHIKA  KARYA  UTAMA  MANDIRI  (ANKATAMA),  PT.  DENTAMULIA  ELMASUTRA  JAKARTA,  MACINDO  MAKMUR,  CV.TOTAL  DIMENSI  BANDUNG,  PT.  INDISI  BANDUNG,  CV.  WIZATNIKA,  CV.  FENNINDO  JAYA  ABADI,  PT.  ALPHA  AUSTENITE,  PT.  LAJU  PERKASA  ABADI,  PT.  BARHTERA      

 

MITRA  KAMI  LAINYA  :  

Brandlist  

Referrence  Standard      

DRAFT INTERNATIONAL STANDARD ISO/DIS 15589-2

ISO/TC 67/SC 2 Secretariat: NEN

Voting begins on Voting terminates on 2001-09-27 2002-02-27

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION

Petroleum and natural gas industries — Cathodic protection for pipeline transportation systems — Part 2: Offshore pipelines

Industries du pétrole et du gaz naturel — Protection cathodique pour systèmes de transport par conduites — Partie 2: Conduites en mer

ICS 75.200

I S O / C E N P A R A L L E L E N Q U I R Y The CEN Secretary-General has advised the ISO Secretary-General that this ISO/DIS covers a subject of interest to European standardization. In accordance with subclause 5.1 of the Vienna Agreement, consultation on this ISO/DIS has the same effect for CEN members as would a CEN enquiry on a draft European Standard. Should this draft be accepted, a final draft, established on the basis of comments received, will be submitted to a parallel two-month FDIS vote in ISO and formal vote in CEN.

To expedite distribution, this document is circulated as received from the committee secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at publication stage.

Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au Secrétariat central de l'ISO au stade de publication.

In accordance with the provisions of Council Resolution 15/1993 this document is circulated in the English language only.

Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué en version anglaise seulement.

THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.

IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.

© International Organization for Standardization, 2001

ISO/DIS 15589-2

© ISO 2001 – All rights reserved 13

gas holes and porosities shall be limited to maximum 2 % of the total cut surface area, and maximum 5 % of any individual cut surface area;

non-metallic inclusions shall be limited to maximum 1 % of the total cut surface area and maximum≤ 2 % of any individual cut surface area;

lack of bond (voids) shall be limited to maximum 10 % of the total tubular insert circumference and maximum 20 % of the circumference for any individual cut.

Bracelet anodes should be sectioned transversely and/or longitudinally by single cuts at 25 % and 50 % of nominal length, or at other agreed locations for a particular anode design. The cut faces, when examined visually without magnification, shall conform to the following criteria:

gas holes and porosities shall be limited to maximum 2 % of the total cut surface area, and maximum 5 % of any individual cut surface area;

non-metallic inclusions shall be limited to maximum 1 % of the total cut surface area and maximum 2 % of any individual cut surface area;

lack of bond (voids) adjacent to the insert shall be limited to maximum 10 % of the total insert perimeter and maximum 20 % of any individual cut.

The insert position within the anode shall be confirmed by measurement on the cut faces and conformed to specified requirements.

9.9 Electrochemical quality control testing

The following shall be tested:

closed circuit potential;

consumption rate;

visual examination of corrosion pattern (uneven consumption, intergranular attack, etc.).

One set of tests shall be carried out for each 15 tonnes of anodes produced. The electrochemical test data shall be included in the material certificate.

The closed circuit potential and the capacity shall comply with the criteria stated in Table 8. Alternative criteria derived from data obtained on testing of anode performance under specific operating conditions may be used. The test procedure should be according to annex C or equivalent. Testing shall be carried out in natural seawater or artificial seawater according to ASTM D1141 at representative temperatures.

Table 8 —Requirements to electrochemical performance (production testing) at all current densities

Anode type Electrochemical Capacity

Average (Ah/kg)

Closed circuit potential,

mV (Ag/AgCl Seawater)

Aluminium 2600a -1070

Zinc 780 -1030

a Single values of min. 2500 Ah/kg are acceptable.

ISO/DIS 15589-2

© ISO 2001 – All rights reserved 9

8.4 Aluminium anode materials

The aluminium anode material should be of the Al-Zn-In type. The chemical composition of the anodes shall be formulated to meet the potential and current capacity requirements of the project design. A typical chemical composition known to perform well in many conditions is given in Table 6. Other compositions may be used if testing demonstrates they meet the required anode performance. Caution should be used when any element falls outside the specified range, as anode performance may be less than the design requires.

Table 6 —Typical chemical composition of aluminium anode materials

Elementa Min. % Max. %

Zn 2,5 5,75

In 0,016 0,040

Fe - 0,09

Si 0,08 0,12

Cu - 0,003

Cd - 0,002

others 0,02 (each)

Al Remainder

a Under certain operating conditions such as deep water (>500m), cold water it may be necessary to select a narrower anode composition range than given in this table in order to obtain the required anode performance.

8.5 Zinc anode materials

A typical chemical composition of the zinc material is as follows:

Table 7 — Typical chemical composition of zinc anode materials

Element Min % Max %

Cu - 0,005

Al 0,10 0,50

Fe - 0,005

Cd 0,025 0,07

Pb 0,006

Zn Remainder

MelLng  Furnace  1   BlasLng  2  

Core  Blowing  Machine  5   Leak  Test  6  

Fasilitas  Pabrik

PainLng  1   Thermocouple  2  

MulLmeter  4   Spectrometer  5  

Fasilitas  Pabrik  

Core  Box  

1  

Mould  

2  

MelLng  Proses  

3  

4   6  

Proses  Pembuatan  Produk  

5  

Pengecekan  Thermocouple   Pouring   Solidifikasi  

Pengecekan  dimensi  

7  

Pengecekan  Berat  

8  

Uji  Potensial  

10  

Uji  Komposisi  

9  

Proses  Pembuatan  Produk  

Uji  Banding  Tes  Spectrometer

QC  Sheet  

NO : TGL : JUMLAH : KgDAPUR NO :

A. MATERIAL MASUK

JUMLAH

KgKggr

B. PROSES PELEBURAN

JAM

CATATAN :

OPERATOR : SUPERVISOR :

KETERANGAN

KETERANGAN

No. Dok :FK-7.4-16

Date : Revisi :

5678 Pouring / Casting

Pengambilan SampleMasukan IndiumTes Temperatur II ˚C

URAIANNO.

1234 Tes Temperatur I ˚C

Pemasukan ZincPemasukan Bahan AluminiumPemanasan Dapur

NAMA BAHAN

Ingot Aluminium TypeZinc IngotIndium

NO.

123

PELEBURAN ANODA ALUMINIUMMaterial 1. √ Al

Series No. 2. Zn

3. Mg

A. Dimensi & Berat

L T Berat (kg)

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

140 130 24,7 Kg

B. Anode Potential

1

12

0001

0012

-1150 mV

-1150 mV

425

0010

0009

0008

0007 425

425

425

425

425

425

425

425

425

425

425

0002

0003

0004

0005

0006

0012

0011

7

8

9

10

11

12

1

2

3

4

5

6

No. Dok : FK-8.2.4-04-01

Date : 12 / 09 / 2017

Revisi :

Specimen No. Batch No.

P

Anode Quality Control

: Al / Zn / Mg

:

Potential

mVolt/Ag AgCl

Sample No. Batch No.

0001

PEMERIKSAAN MUTU ANODA ALUMINIUM

SerEfikat  kalibrasi