cut-out tolerances.
(c) 参考压力装置：压力计或其他装置（如压力传感器），精度达到真实值的±1%，用于设置或测量以及记录断路公差。
(d) Timing devices Each test station shall be provided with a timing device to register the duration of the test on each joint assembly until the specified time has been exceeded or until a pressure fall of more than 2% below the set value occurs.
(d) 计时装置：每个测试点都应提供计时装置以记录各连接组件的测试周期，直到超过规定时间或者直到压力下降超过设定值2%的情况出现。
NOTE: An electric contact pressure gauge is considered satisfactory apparatus for this purpose when used in conjunction with a test gauge.
注：为此目的，当电接触压力计与测试量规结合使用时，可认为是令人满意的装置。
(e) Testing environment Means shall be provided for testing the joint assembly in air at a temperature of 95 ±2°C. Suitable protection shall be provided so that the operator is not exposed to a safety hazard if joint assemblies burst.
(e) 测试环境：应提供适当方法使得连接组件处于95 ±2°C的空气中进行测试，应提供适当保护使得如果连接组件爆裂，操作员不会受到危险伤害。 C4 PREPARATION OF JOINT ASSEMBLIES C4 连接组件的准备
Each joint assembly shall consist of the fitting to be tested and assembled with two consecutive pieces of cross-linked polyethylene pipe cut from the same length of pipe. The total length of pipe shall have a free length (L) between end connections at least equal to 3 times the nominal outside diameter of the pipe, subject to a minimum of 250 mm.
每个连接组件构成为：被测连接件以及与被测连接件装配在一起的两段连续的交联聚乙烯管，聚乙烯管切割自同样长度的管子。管子总长度应该为：终端连接之间的自由长度（L）至少等于管子公称外径的3倍，至少达到250毫米。
Before assembly, each piece of pipe shall have its ends squared and cleaned. They shall have no burrs, notches or other markings which may cause premature bursting.
各段管子在装配之前都必须整平和清洁端部，不能有毛刺、凹槽或其他可能导致提前爆裂的痕迹。 C5 PROCEDURE C5 程序
The procedure shall be as follows: 程序如下：
(a) Determine the minimum wall thickness and the mean outside diameter of the cross- linked polyethylene pipe to be used with each joint assembly in accordance with the method described in AS 2492, Appendix B, and calculate the internal hydrostatic pressure to be applied from the following equation:
(a) 按照AS 2492，附录B描述的方法，确定需要与各连接组件配合使用的交联聚乙烯管的最小壁厚和平均外径，并按照下列公式计算需要施加的内部液压值：
where 其中：
P = internal hydrostatic pressure (to be applied), in megapascals P = 内部液压（需要施加），单位：MPa。 S = hoop stress (4.8 or 4.2 MPa), as applicable S = 环向压力(4.8 或 4.2 MPa)，如果适用。 Tmin. = minimum wall thickness, in millimeters Tmin. = 最小壁厚，单位：毫米。
Dm = mean outside diameter, in millimeters Dm = 平均外径，单位：毫米。
(b) Fill the joint assembly with distilled water and connect to the apparatus provided. Ensure that all air is excluded from the system.
(b) 将连接组件灌满蒸馏水，并连接到提供的设备上，需要确保空气已经从系统中完全排出。 (c) Apply the internal hydrostatic pressure, reaching the calculated test pressure within 30 s to 60 s of first admitting pressure, and maintain this with an accuracy of ±2% throughout the test.
(c) 施加内部静水压力，让其在30-60秒内达到计算的测试压力，并在整个测试过程中保持精度±2%的该测试压力。
(d) Maintain the temperature of the air in contact with the joint assembly at 95 ±2°C for the duration of the specified test period.
(d) 让整个测试过程中接触连接组件的空气温度保持在95 ±2°C。 C6 REPORT C6 报告
The following information shall be reported: 应报告下列信息：
(a) Class and size of fitting under test. (a) 用于测试的连接件的等级和尺寸。
(b) Pipe dimensions, including minimum wall thickness and mean outside diameter. (b) 管子尺寸，包括最小壁厚和平均外径。
(c) Internal hydrostatic pressure applied to each joint assembly. (c) 施加给各连接组件的内部静水压力。
(d) Failure of the joint assembly to complete the test and in the event, of this occurring, the time to failure. Failure is defined as leaking, weeping, or rupturing of the joint assembly.
(d) 连接组件未能完成测试，以及如果发生失败情况的时间。失败的定义为连接组件渗漏、滴水或破裂。
(e) Reference to this test method, i.e. AS 2537, Appendix C. (e) 参考本测试方法，也就是AS 2537，附录 C。
将上端连接到压力系统上， 组件垂直支撑。
连接件
端推力作用于同轴金属棒上，组件在端部接头处自由膨胀并用O形环密封。
FIGURE C1 SUITABLE END CONNECTIONS FOR PRESSURE TESTS
图C1：用于压力测试的合适端部连接
O形密封件
APPENDIX D
A1
‘Not applicable’
D 用
附录不适
APPENDIX E
METHOD OF TEST FOR RESISTANCE TO LEAKAGE WHEN SUBJECTED TO BENDING
(Normative) 附录E
被弯曲时的抗渗漏性测试方法
（规范性）
E1 SCOPE E1 范围
This Appendix sets out a method for determining the resistance to leakage of assembled joints of fittings and cross-linked polyethylene pipe under internal pressure when subjected to bending, under two different conditions, viz. conditioning and testing at 95 ±2°C, and conditioning and testing at 20 ±5°C. 本附录规定了用于确定装配后的连接件和交联聚乙烯管的接头，在承受内部压力时受到弯曲的状况下的抗渗漏性能，本测试需要在两种不同环境状况下测试，即95 ±2°C和20 ±5°C两种状况。 E2 APPARATUS E2 设备
The following apparatus is required: 需要下列设备：
(a) Bending template A bending template having a bearing length (B) along the arc equal to 75 ±5% of the free length (L) between fittings (see Paragraph E3).
(a) 弯曲模板：弯曲模板要求沿着弧线方向的承载长度（B）等于连接件之间自由长度（L）的75 ±5%。（见图E3）
The contact section of the bearing template shall be semicircular and conform to the outside dimensions of the pipe. The bending radius (R) of the gauge varies with the size of fitting under test and shall be 10 times the nominal outside diameter of the pipe used.
承载模板的接触部分应为半圆形并与管子外径尺寸相配合。量规的弯曲半径（R）随着被测连接件尺寸而变化，应该达到所使用管子公称外径尺寸的10倍。 A suitable bending apparatus is illustrated in Figure E1. 图E1为合适的弯曲装置示例。
(b) Pressurizing system A device capable of supplying and maintaining constant internal pressure in the joint assembly under test in the range of pressure 0 to 8.0 MPa and capable of maintaining an accuracy of ±2%.
(b) 加压系统：该装置要求能够向被测连接组件提供并维持恒定的内部压力，压力范围0至 8.0 MPa，并维持在±2%的精度范围。
(c) Pressure gauge A pressure gauge, or pressure gauges as necessary, complying with the requirements of AS 1349 and able to measure the pressure in each joint assembly under test. (c) 压力计：符合AS 1349要求的一个或多个压力计，能够测量各个被测连接组件压力。 Pressure gauges shall have graduations which will permit an accuracy of ±5% of the set value. 压力计应该具有精度达到设定值±5%的刻度。 E3 PREPARATION OF JOINT ASSEMBLIES