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TSG D7005-2018 (TSGD7005-2018)

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BASIC DATA
Standard ID TSG D7005-2018 (TSGD7005-2018)
Description (Translated English) Periodic Inspection Regulation for Industrial Pressure Piping
Sector / Industry Special Equipment Industry Standard
Classification of Chinese Standard C78
Word Count Estimation 35,389
Date of Issue 2018-01-26
Date of Implementation 2018-05-01
Drafting Organization China Special Equipment Inspection and Research Institute
Administrative Organization State Administration of Quality Supervision, Inspection and Quarantine
Regulation (derived from) AQSIQ Announcement No. 17 of 2018


TSG D7005-2018: PDF in English
TSG D7005-2018
TSG
TECHNICAL SPECIFICATION FOR
SAFETY OF SPECIAL EQUIPMENT
Periodic inspection regulation
for industrial pressure piping
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine
January 26, 2018
Table of Contents
Foreword ... 3 
1 General ... 5 
2 Periodic inspection ... 9 
3 Rating of the grade of safety status ... 21 
4 Records, reports and conclusions of periodic inspection ... 28 
5 Supplementary ... 30 
Appendix A Requirements for annual inspection of industrial piping ... 31 
Annex a Annual inspection report of industrial piping ... 39 
Appendix B Periodic inspection report of industrial piping ... 42 
Appendix C Notice of periodic inspection opinions of special equipment (1) . 46 
Periodic inspection regulation
for industrial pressure piping
1 General
1.1 Purpose
In order to regulate the periodic inspection of in-use industrial pressure piping,
in accordance with the “Special equipment safety law of the People’s Republic
of China”, “Special equipment catalogue”, the provisions of related safety
technical specifications, this Regulation is hereby formulated.
1.2 Scope of application
This rule applies to the periodic inspection of in-use industrial pressure piping
(hereinafter referred to as piping) (Note 1-1, Note 1-2).
Note 1-1. The periodic inspection of buried pipe sections can be carried out in
accordance with the relevant inspection items of the “Periodic inspection
regulations for oil and gas pressure piping” (TSG D7003) as well as the relevant
technical standards.
Note 1-2. Power piping (except for piping within the scope of boiler in “Boiler
safety - Technical supervision administration regulation” (TSG G0001)) are
classified according to grading conditions for industrial piping. The periodic
inspection refers to this Regulation as well as the standards to be followed
during construction; it may also refer to the related test items of the major
connection piping of the boilers which are covered by “Boiler periodical
inspection regulation” (TSG G7002) as well as the relevant technical standards.
1.3 Periodic inspection of piping
The periodic inspection of piping, that is, the comprehensive inspection, refers
to the conformity verification activities by the special equipment inspection
organizations (hereinafter referred to as inspection organization) against the
safety status of the piping, based on a certain time period, according to the
provisions of this Regulation, relevant safety technical specifications, the
relevant standards.
Periodic inspections shall be conducted on the basis of annual inspection.
1.4 Work procedures of periodic inspection
The user organization shall fulfill the following obligations.
(1) Formulate a periodic piping inspection plan; apply to periodic inspection
to the inspection institute 1 month before the valid period of the periodic
inspection of the piping;
(2) Do well in inspection coordination and safety supervision; be responsible
for the authenticity of the relevant information provided;
(3) For the defects and problems which are found in the inspection, propose
the treatment or rectification measures, be responsible for their
implementation, feedback the treatment or rectification conditions, in
writing, to the inspection institute.
1.8 Duties of inspection institute and inspectors
(1) The inspection institute shall perform the inspection of the piping in
accordance with the approved inspection scope, be responsible for the
authenticity, accuracy and validity of the inspection report (Note 1-4);
(2) Personnel engaged in the inspection and testing of piping shall obtain
the corresponding certificate of special equipment inspection and testing
personnel, make registration in accordance with relevant provisions;
(3) After the inspection institute receives the periodic inspection application
from the user organization, it shall conduct the inspection in time;
(4) The inspection institute shall conduct periodically safety training for the
inspection work of the testing and inspection personnel, retain the
training records.
Note 1-4. Authenticity means that the report is based on objective facts and
does not make false evidence. Accuracy means that the accuracy of the test
data involved in the report meets the relevant requirements. Effectiveness
means that the qualification of the inspection institute and the inspector
complies with requirements; the measuring equipment, instrument and tools
which are used for inspection and testing are within the valid period of the
calibration standard; the basis for the testing is legal; the report’s approval
procedure complies with requirements.
1.9 Application of new techniques
If new techniques and new assessment methods are adopted in the inspection,
which are inconsistent with the requirements of this Regulation and the related
safety technical specifications, or if this Regulation and related safety technical
specifications do not make any requirements, or it may have major impact onto
the safety performance, the relevant organization shall provide the relevant
piping installation supervision and inspection certificates;
(3) Data on reconstruction or major repair, including construction plans and
completion data, as well as the supervision and inspection certificate of
the reconstruction and major repair which is required by the relevant
safety technical specifications;
(4) Data of utilization management, including “Use registration certificate”,
“Use registration form”, “Basic information collection of pressure piping -
Industrial pressure piping”, as well as the operation records,
startup/shutdown records, changes in operation conditions,
abnormalities in operation, records on corresponding treatment, etc.
(5) Testing and inspection data, including the verification and calibration data
on the safety accessories and instrument, the annual inspection report in
the periodic inspection cycle, the previous periodic inspection report.
The inspector shall review the piping information which is provided by the user
organization. The information in items (1) to (3) of this clause must be reviewed
at the time of the first periodic inspection of the piping after it is put into use.
The subsequent inspections will be reviewed as required (for example, if
alterations or major repairs are performed).
2.3.2 Preparation work for inspection site
The user organization and related supporting organizations (such as repair and
maintenance organizations, etc., the same below) shall do well in the technical
handling after the shutdown and the safety inspection before the inspection
according to the requirements, to confirm that the site conditions meet the
requirements of the inspection work, to finish the relevant preparation work.
Before the inspection, the inspection site shall meet at least the following
conditions.
(1) Auxiliary parts or other objects that affect the inspection shall be cleaned
or removed in accordance with the inspection requirements;
(2) Scaffolding, portable ladders and other facilities for inspection purposes
shall be safe and secure (for the scaffolding more than 2 m above the
ground, set the protective devices such as safety guardrails);
(3) The surface of the piping to be inspected shall be ground and cleaned,
especially the corroded location and the parts where crack defects may
occur, which shall be thoroughly cleaned to expose the metal body. The
surface to be subjected to non-destructive testing shall comply with NB/T
47013 Non-destructive testing of pressure equipment;
(4) During piping inspection, it shall be ensured that it is reliably isolated from
may have seepage of rainwater shall be subjected to non-destructive
testing of the outer surface at the corresponding parts;
(3) When the inspector deems it necessary, the fillet welds and so on of the
branch piping shall be subjected to the non-destructive testing of the
outer surface;
(4) For carbon steel, low-alloy steel low-temperature piping, Cr-Mo steel
piping, low-alloy steel piping which has the lower limit of standard tensile
strength greater than or equal to 540 MPa, piping which is subjected to
long-term obvious alternating load, grade GC1 piping which is subjected
to the first periodic inspection, it shall perform the sampling inspection of
non-destructive testing at the outer surface of the weld joint and stress-
concentrated parts, the sampling inspection ratio shall be not less than
5% of the quantity of the weld joint, meanwhile the number shall be not
less than 2;
(5) For piping which has a tendency of environmental cracking, it may use
other testing methods at the outer surface to perform sampling inspection
of the inner surface. The sampling inspection ratio shall be not less than
10% of the quantity of the butt-welded joints, meanwhile the quantity shall
be not less than 2;
(6) When cracks are found in the testing, the inspector shall expand the
proportion of surface defect testing, in order to find other defects ......