ISO 16301:2017

INTERNATIONAL ISO
STANDARD 16301
First edition
2017-09
Rubber and plastics hoses and hose
assemblies, wire- or textile-reinforced,
for manually operated hydraulic
jacks — Specification
Tuyaux et flexibles en caoutchouc et en plastique, à armature textile
ou métallique, pour vérin hydrauliques — Spécifications
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3  Terms and definitions . 2
4  List of significant hazards . 2
4.1 General . 2
4.2 Hazards due to bursting or leaking of hoses . 2
4.3 Hazards due to failure of connectors . 3
4.4 Hazards due to errors by the operator . 4
4.5 Hazards due to change in length of hose assembly . 5
5  Classification . 5
5.1 Classes . 5
5.2 Grades . 5
6 Materials and construction . 6
6.1 Hoses . 6
6.2 Hose assemblies . 6
7 Dimensions and tolerances . 6
7.1 Diameters . 6
7.2 Cover thickness . 6
7.3 Concentricity. 6
8 Physical properties . 7
8.1 Fluid resistance . 7
8.1.1 Test pieces . 7
8.1.2 Oil resistance . 7
8.2 Performance requirements . 7
8.2.1 Hydrostatic requirements . 7
8.2.2 Change in length . 7
8.2.3 Minimum bend radius . 8
8.2.4 Resistance to impulse . 8
8.2.5 Leakage of hose assemblies . 9
8.2.6 Cold bending test . 9
8.2.7 Ozone resistance . 9
8.2.8 Electrical conductivity .10
8.2.9 Visual examination .10
9 Frequency of testing .10
10 Marking .10
10.1 Hoses .10
10.2 Hose assemblies .11
11 Test report .11
12 Recommendations for packaging and storage .11
Annex A (informative) Selection of hoses .12
Annex B (normative) Test frequency.13
Annex C (informative) Production tests .14
Annex D (informative) Recommendations for lengths of supplied hoses and hose assemblies .15
Annex E (normative) Test method for electrical conductivity .16
Bibliography .17
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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electrotechnical standardization.
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URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee TC 45, Rubber and rubber products, Subcommittee
SC 1, Rubber and plastics hoses and hose assemblies.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 16301:2017(E)
Rubber and plastics hoses and hose assemblies, wire- or
textile-reinforced, for manually operated hydraulic jacks —
Specification
1 Scope
This document specifies the requirements for three classes of wire- or textile-reinforced hydraulic
hoses and hose assemblies of nominal sizes ranging from 5 to 25. The hoses and hose assemblies are
used in hydraulic jack applications with manually operated hand pumps. They are suitable for use with
hydraulic fluids HH, HL, HM, HR and HV at temperature ranging from −40 °C to +55 °C. For tools that
[3]
require heavy duty services such as a rescue tool, ISO 19718 applies.
This document does not include requirements for the connection ends. It is limited to the performance
of hoses and hose assemblies. The maximum working pressure of hose assemblies is regulated by the
lowest maximum working pressure of the components.
NOTE 1 It is the responsibility of the user, in consultation with the hose manufacturer, to establish the
compatibility of the hose with the fluid to be used.
NOTE 2 There are two International Standards for hoses for hydraulic jacks and tool applications, i.e.
ISO 16301 and ISO 19718. The comparison table is given in Annex A.
[2]
NOTE 3 The classification of HH, HL, HM, HR and HV is found in ISO 6743-4 .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
ISO 6743-4, Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H
(Hydraulic systems)
ISO 6803, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing
ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
ISO 8331, Rubber and plastics hoses and hose assemblies — Guidelines for selection, storage, use and
maintenance
ISO 10619-1:2011, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 1: Bending tests at ambient temperature
ISO 10619-2:2011, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 2: Bending tests at sub-ambient temperatures
3  Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8330 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4  List of significant hazards
4.1 General
This clause contains some of the significant hazards, hazardous situations and events, as far as they are
dealt with in this document, identified by risk assessment as significant for this type of machinery and
which require action to eliminate or reduce the risk.
4.2  Hazards due to bursting or leaking of hoses
Hazards can occur when a hose bursts or leaks. The escaping stream of liquid can cause personal injury
or property damage.
Figure 1 — Hazards due to bursting or leaking of hoses
2 © ISO 2017 – All rights reserved

4.3  Hazards due to failure of connectors
Hazards can occur when a connector fails. The escaping stream of liquid can cause physical damage
and also a sudden repositioning of the hose assembly in a dangerous manner (whip).
Figure 2 — Hazards due to failure of connectors
4.4  Hazards due to errors by the operator
Hazards can occur if the operator uses incompatible substances or incompatible components. Hazards
can also occur if the operator exceeds the limits of use specified by the manufacturer (e.g. too high
pressure, too high tensile stress), also pinhole caused by kink might result in a significant injury.
Figure 3 — Hazards due to errors by the operator
4 © ISO 2017 – All rights reserved

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