YD/T 1118.3-2018 PDF in English
YD/T 1118.3-2018 (YD/T1118.3-2018, YDT 1118.3-2018, YDT1118.3-2018)
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Secondary coating materials used for optical fibre--Part 3: Modified polycarbonate
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Standards related to (historical): YD/T 1118.3-2018
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YD/T 1118.3-2018: PDF in English (YDT 1118.3-2018) YD/T 1118.3-2018
COMMUNICATION INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 33.180.10
M 33
Secondary coating materials used for optical fiber -
Part 3: Modified polycarbonate
ISSUED ON: DECEMBER 21, 2018
IMPLEMENTED ON: APRIL 01, 2019
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 4
1 Scope ... 5
2 Normative references ... 5
3 Requirements ... 6
3.1 Appearance ... 6
3.2 Physical and electrical properties ... 6
4 Test method ... 7
4.1 Appearance ... 7
4.2 Preparation of specimen ... 8
4.3 Standard environment for conditioning and testing of plastic specimens ... 8
4.4 Density ... 8
4.5 Melt index ... 8
4.6 Moisture ... 8
4.7 Saturated water absorption... 8
4.8 Tensile yield strength, tensile yield elongation, elongation at break, tensile elastic modulus
... 8
4.9 Bending strength ... 9
4.10 Shore hardness HD ... 9
4.11 Izod impact strength ... 9
4.12 Linear expansion coefficient ... 9
4.13 Volume resistivity ... 10
4.14 Thermal distortion temperature ... 10
4.15 Mold shrinkage ... 10
4.16 Compatibility of materials and filling factice ... 10
5 Inspection rules ... 10
5.1 General ... 10
5.2 Classification of inspections ... 10
5.3 Exit-factory inspection ... 11
5.4 Type inspection ... 12
6 Marking, packaging, transportation, storage ... 13
6.1 Marking and packaging ... 13
6.2 Transportation ... 13
6.3 Storage ... 13
Appendix A (Informative) Technical requirements and test methods of PC loose-
tube... 14
Secondary coating materials used for optical fiber -
Part 3: Modified polycarbonate
1 Scope
This part specifies the technical requirements, test methods, inspection rules,
marking, packaging, transportation and storage of modified polycarbonate
(hereinafter referred to as PC) of secondary coating materials for optical fibers.
This part applies to modified polycarbonate of secondary coating materials for
optical fibers.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 1033 Plastics - Determination of density of non-foam plastics (ISO
1183:2004, MOD)
GB/T 1034-2008 Plastics - Determination of water absorption of plastics
(ISO 62:2008, IDT)
GB/T 1036 Test method for coefficient of linear thermal expansion of
plastics between -30 °C and 30 °C with a vitreous silica dilatometer
GB/T 1040.2-2006 Plastics - Determination of tensile properties - Part 2: Test
conditions for molding and extrusion plastics (ISO 572-2:1993, IDT)
GB/T 1410-2006 Methods of test for volume resistivity and surface resistivity
of solid electrical insulating materials (IEC 60093:1980, IDT)
GB/T 1634-2004 Plastics - Determination of temperature of deflection
under load (ISO 75:2003, IDT)
GB/T 1843-2008 Plastics - Determination of Izod impact strength (ISO
180:2000, IDT)
GB/T 2411 Plastics and ebonite - Determination of indentation hardness by
means of a durometer (shore hardness) (ISO 868:2003, IDT)
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1:
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection (ISO 2859-1:1999, IDT)
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and
testing (ISO 291:1997, IDT)
GB/T 3682-2000 Determination of the melt mass-flow rate (MFR) and the
melt volume-flow rate (MVR) of thermoplastics (ISO 1133:1997, IDT)
GB/T 9341-2008 Plastics - Determination of flexural properties (ISO
178:2001, IDT)
GB/T 17037.1 Injection molding of test specimens of thermoplastic materials
- Part 1: General principles and molding of multipurpose and bar test
specimens (ISO 294-1:2001, IDT)
GB/T 17037.4 Plastic - Injection molding of test specimens of
thermoplastic materials - Part 4: Determination of molding shrinkage (ISO
294-4:1996, IDT)
YD/T 1118.1-2001 Secondary coating materials used for optical fiber - Part
1: Polybutylene terephthalate
3 Requirements
3.1 Appearance
The product should be colorless and transparent cylindrical particles with a
diameter of 2 mm to 5 mm and a length of 2 mm to 5 mm. The particles shall
be smooth, free of impurities, free of continuous beads.
3.2 Physical and electrical properties
The physical and mechanical properties and electrical properties of the PC
material shall meet the requirements of Table 1. For technical requirements and
test methods of loose-tubes made of PC material, refer to Appendix A.
4.2 Preparation of specimen
The preparation of standard samples required for various properties in Table 1
is made in accordance with the method specified in GB/T 17037.1. Specific
injection parameters should be provided by the material supplier.
4.3 Standard environment for conditioning and testing of
plastic specimens
Carry it out according to the conditions 2, 3, 4 as specified in GB/T 2918-1998.
4.4 Density
It is performed according to the method as specified in GB/T 1033.
4.5 Melt index
Perform it according to the PC experimental conditions as specified in Appendix
B of GB/T 3682-2000. The specimen shall be dried for at (110 ± 1) °C for 4 h.
4.6 Moisture
It is performed according to the method as specified in Appendix B of YD/T
1118.1-2001.
4.7 Saturated water absorption
It is performed according to the method 1 as specified in GB/T 1034-2008.
4.8 Tensile yield strength, tensile yield elongation, elongation
at break, tensile elastic modulus
4.8.1 It is performed according to the method as specified in GB/T 1040.2-2006.
Use type 1A or 1B standard specimens.
4.8.2 The test speed of tensile yield strength, yield elongation, elongation at
break is 50 mm/min. The test speed of tensile elastic modulus is 5 mm/min.
4.13 Volume resistivity
It is performed according to the method as specified in GB/T 1410-2006.
Standard samples have a diameter of 100 mm and a thickness of not more than
2 mm.
4.14 Thermal distortion temperature
It is performed according to the method as specified in GB/T 1634-2004. The
sample is a standard sample of (120 x 15 x 10) mm3.
4.15 Mold shrinkage
It is performed according to the method as specified in GB/T 17037.4.
4.16 Compatibility of materials and filling factice
4.16.1 The specimen is a standard specimen of type 1A or 1B dumbbell as
specified in 6.1 of GB/T 1040.2-2006 and prepared according to the method as
specified in GB/T 17037.1.
4.16.2 The conditions of compatibility shall be carried out in accordance with
the method as specified in Appendix C of YD/T 1118.1-2001.
5 Inspection rules
5.1 General
Products must pass the inspection of the manufacturer's quality inspection
department and be accompanied with a quality mark before they can leave the
factory.
5.2 Classification of inspections
Product inspection is divided into exit-factory inspection and type inspection.
Product inspection items and categories are as shown in Table 2.
When the type inspection item is unqualified, it shall randomly take double
quantity of samples for re-inspection of the item. If it still fails, the type inspection
is judged as unqualified. If the type inspection fails, the acceptance of this model
of product shall be stopped, and production shall stop. At the same time, it shall
analyze the causes and take measures; it can restore production and
acceptance after new type inspection is qualified.
6 Marking, packaging, transportation, storage
6.1 Marking and packaging
6.1.1 The product packaging bag that has passed the inspection shall be
marked with the name, code, trademark, brand, batch number (or production
date), standard number, weight, manufacturer (including factory address,
telephone, postal code), the sign of “avoid heat and moisture”.
6.1.2 Each batch of products delivered shall have a product inspection report
and a certificate of conformity.
6.1.3 The product uses moisture-proof inner packaging of aluminum-plastic
composite film, Kraft paper or non-woven outer packaging, or a packaging bag
negotiated between the supplier and the purchaser. The net weight of each bag
is 25 kg or other weight approved by both the supplier and the purchaser.
6.2 Transportation
When transporting the product, do not expose it to the sun or rain; keep the
product dry, clean, complete, free from pollution.
6.3 Storage
The product shall be stored in a clean, dry, cool and ventilated warehouse.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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