1 Scope
This standard specifies the terms and definitions, requirements, test methods, inspection rules, and marking, packaging, transportation and storage with respect to polyester fiber gauntlets for lead-acid batteries (hereinafter referred to as guantlets).
It is applicable to the gauntlets for tubular plates of lead-acid batteries.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest editions apply to this part.
GB/T 625 Chemical reagent - Sulfuric acid (GB/T 625-2007, ISO 6353-2:1983, NEQ)
GB/T 626 Chemical reagent - Nitric acid (GB/T 626-2006, ISO 6353-2:1983, NEQ)
GB/T 643 Chemical reagent - Potassium permanganate (GB/T 643-2008, ISO 6353-2: 1983, NEQ)
GB/T 670 Chemical reagent - Silver nitrate (GB/T 670-2007, ISO 6353-2:1983, NEQ)
GB/T 14436 General principles of industrial product guarantee documents
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
tensile strength
the force to be applied so that gauntlets of unit width are damaged by tensile force
3.2
d-c resistance
the ability of the gauntlets to block ion migration in sulfuric acid solution, expressed as Ω?dm2
3.3
porosity
the ratio of the volume of pores in gauntlets to the total volume of gauntlets, expressed in percentage
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 Appearance
4.2 Specifications/dimensions
4.3 Basic weaving parameters
4.4 Shape of side edge
4.5 Physical and chemical properties
5 Test methods
5.1 Appearance and dimensions
5.2 Tensile strength
5.3 d-c resistance
5.4 Porosity
5.5 Stress deformation
5.6 Weight loss in acid-soaking
5.7 Coefficient of acid resistance
5.8 Chlorine content
5.9 Potassium permanganate reducing substance
6 Inspection rules
6.1 Inspection classification
6.2 Inspection items
6.3 Batching rules
6.4 Judgment rules
7 Marking, packaging, transportation and storage
7.1 Marking
7.2 Packaging
7.3 Transportation
7.4 Storage
Figure 1 Schematic diagram for the shapes of side edges of gauntlets
Figure 2 Tensile strength test apparatus
Figure 3 Schematic diagram for the electrical resistance test
Table 1 Appearance quality
Table 2 Basic weaving parameters
Table 3 Physical and chemical properties
Table 4 Type inspection item
Table 5 End-of-manufacturing inspection items
