Foreword

Publishing information

This British Standard is published by BSI Standards Limited,under licence from The British

Standards Institution,and came into effect on 31October 2018.It was prepared by Subcommittee B/510/2,Surface treatments,under the authority of Technical Committee B/510,Road Materials.

A list of organizations represented on these committees can be obtained on request to their secretary. Supersession

This British Standard supersedes BS 1707:1989, which is withdrawn.

Information  about  this  document

This is a full revision of the standard,and introduces the following principal changes:

·      removal of the "carpet tile"test as this is now superseded by BS EN 12272-1;

·      the coefficient of variation calculation is aligned with BS EN12272-1;and

·      binder collectors can now be 50mm or  100mm wide.

Presentational      conventions

The provisions of this  standard are presented in roman(i.e.upright)type.Its requirements are expressed in sentences in which the principal auxiliary verb is "shall".

Commentary,explanation and general informative material is presented in smaller italic type,and does not constitute a normative element.

Where words have alternative spellings,the preferred spelling of the Shorter Oxford English Dictionary is used (e.g."organization"rather than “organisation”).

Requirements in this standard are drafted in accordance with Rules for the structure and drafting of   UK standards,subclause G.1.1, which states,"Requirements should be expressed using wording such as:'When tested as described in Annex A,the product shall...".This means that only those products  that are capable of passing the specified test will be deemed to conform to this standard.

Notes and commentaries are provided throughout the text of this standard.Notes give references and additional information that are important but do not form part of the recommendations.

Commentaries give background information.

Contractual and legal considerations

This publication does not purport to include all the necessary provisions of a contract.Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

前言

 出版信息

本英国标准由 BSI 标准有限公司在英国标准协会授权下出版，于 2018 年 10 月 31 日起生效。该标准由道路材料技术委员会 B/510 下属的路面处理小组委员会 B/510/2 编制。

如需获取这些委员会的成员组织名单，可向其秘书提出申请。

 替代情况

本英国标准替代了 BS 1707:1989，后者已废止。

 本文件相关信息

这是对该标准的全面修订，主要变更如下：

• 取消了“地毯砖”试验，因为该试验现被 BS EN 12272 - 1 替代；

• 变异系数计算与 BS EN 12272 - 1 保持一致；

• 粘结料收集器的宽度现在可以是 50 毫米或 100 毫米。

 表述规范

本标准的规定以罗马字体（即正体）呈现。其要求采用以主要助动词“应”表述的句子来表达。

注释、解释和一般性信息资料以较小的斜体字呈现，不构成规范性要素。

当词汇有不同拼写方式时，采用《简明牛津英语词典》的首选拼写（例如使用“organization”而非“organisation”）。

本标准的要求按照英国标准的结构和起草规则 G.1.1 条款起草，该条款规定：“要求应采用如下措辞表述：‘当按照附录 A 所述进行测试时，产品应……’”。这意味着只有那些能够通过规定测试的产品才被视为符合本标准。

本标准全文提供了注释和说明。注释给出了重要但并非建议组成部分的参考信息和附加信息。说明则提供了背景信息。

 合同与法律方面的考虑

本出版物并不声称包含合同所需的所有必要条款。用户有责任正确应用本标准。

符合英国标准并不能免除法律责任。

5 Test apparatus

5.1    One large container (tray),with a minimum capacity of 5001,subdivided into smaller containers by means of internal partitions.

In order to contain the binder,the dimensions of each small container shall be(1000±10)mm long and at least 150 mm deep(maximum 200 mm),and the nominal distance from the centre of one

small container across the width of the container to the centre of the neighbouring small container

5 试验装置

5.1一个大容器（托盘），最小容量为500L，通过内部隔板分隔成若干小容器。

为容纳粘合剂，每个小容器的尺寸应为（1000±10）毫米长，且至少150毫米深（最大200毫米），以及从一个容器中心到标称距离。

将小集装箱横跨整个集装箱宽度，直至邻近小集装箱的中心位置 。

shall be either 50 mm or 100mm.The containers shall be made of low carbon steel of thickness 0.9 mm to 2 mm.

应为50 mm或100 mm。容器应由厚度0.9 mm至2 mm的低碳钢制成。

The internal width of any 10 100 mm width adjacent containers shall be(1000±10)mm.

The containers shall extend to a width of at least 150 mm greater than the full spray width of the binder sprayer.

任何10100 mm宽度的相邻容器的内部宽度应为（1000±10）mm。容器的延伸宽度应至少比粘合剂喷雾器的全喷雾宽度大150 mm。

Each container shall be examined for damage before each test and repaired or replaced if such damage is likely to affect the test.

每次试验前应对每个容器进行检查，如果损坏可能影响试验，则应修理或更换。

NOTE Awheeled container moving on steel rails over a catch pit has been found to be suitable for

undertaking the test.

注：发现装有轮子的容器在钢轨上经过集水坑时适合进行试验。

5.2    Tape measure,calipers or other measuring device,graduated in millimetres.

卷尺、卡尺或其他以毫米为刻度的测量工具。

5.3    Timing device,capable of measuring the duration of the test to 1s.

定时装置，能够测量测试持续时间至1s。

5.4    Steel rule,graduated in millimetres.

钢尺，以毫米为单位。

5.5    Thermometer,readable to 1℃.

温度计可读至1℃

6     Procedure

流程

6.1    Position the  spray bar over the container test apparatus,with the spray bar horizontal and at right angles to the containers.The tray shall be emptied before conducting the test.The tray containing the containers shall be level.Make a preliminary spray to ensure that all nozzles are functioning and that the machine is in normal working condition.

将喷杆定位在容器试验装置上方，使喷杆水平且与容器垂直。进行试验前应清空托盘。装有容器的托盘应是水平的。进行初步喷洒，以确保所有喷嘴均正常工作且机器处于正常工作状态。

6.2    Measure  the  vertical  height  at  each  end  of the  spray  bar  above  the  tray  and  record  it  to  the nearest   10mm.

测量喷雾杆在托盘上方的两端的垂直高度，并记录其值，精确到10mm。

6.3    Commence spraying the binder and maintain for sufficient time as to almost fill the containers.Record the binder temperature and spray bar pressure or flow as indicated on the measuring devices on the sprayer:

开始喷洒粘合剂并保持足够时间，以几乎填满容器。记录粘合剂温度和喷杆压力或流量，如喷雾器上的测量设备所示：

6.4    Remove the apparatus from beneath the spray bar.

将装置从喷杆下方取出。

6.5    Use the steel rule to measure the depth of binder in each container,including those containers which are only partly filled at each end of the sprayed width of the tray.Dip the rule into each containerin the same position as near the centre as possible.Clean the rule in between each dip using an appropriate cleaning agent.

用钢尺测量每个容器中粘合剂的深度，包括那些在托盘喷雾宽度两端只部分填充的容器。将钢尺浸入每个容器中，位置尽可能靠近中心。每次浸入之间用适当的清洁剂清洁钢尺。

NOTE1 Attention is drawn to the need to measure each container in consecutive order.

注意：需要按顺序测量每个容器。

The true level of the binder shall be measured and the reading not obscured by the froth that can collect on the surface of the binder.If froth does occur,the rear of the rule shall be used to push back the  froth  before  immersing  it  fully  in  the  container.

应测量粘结剂的真实高度，且读数不应被粘结剂表面可能聚集的泡沫所遮蔽。如果出现泡沫，则应在完全浸入容器之前，使用量规的背面将泡沫推回。

Binder sprayers with expanding bars shall be tested under conditions of maximum extension and,if required,at intermediate positions of the spray bar.

应根据最大伸展条件对带有伸缩杆的粘合剂喷涂机进行试验，如需要，还应在喷涂杆的中间位置进行试验。

NOTE 2 When using extending spray bars it is advisable to check when the jets on a partly extended width are   activated so that there is no reduction ofthe uniformity of the spray.This is best carried out as an on-site check.

注2：使用伸缩式喷杆时，建议检查部分伸缩宽度处的喷嘴何时被激活，以确保不会降低喷雾的均匀性。最好在现场进行检查。

6.6  Record  the  results  of the  test  on  a  suitable  work  sheet  as  shown  in  Figure  1.

6.6在适当的工作表上记录测试结果，如图1所示。

7        Calculations  计算

7.1   Coefficient   of  variation(C) 

变异系数(C)

7.1.1      Exclude  the  measurements  of depth  made  in  the  first  three  containers  at  each  end  of the  sprayed  width  which  are  empty,partly  filled  or  overfilled  to  give  the  number  of  sampling devices/containers,N.

For  the  100  mm  width  test,where  50  mm  wide  containers  are  used  each  two  adjacent  containers shall  be  averaged  before  calculating  the  mean  value  and  the  coefficient  of  variation(C).

排除喷洒宽度两端各三个容器的深度测量值，这些容器为空、部分填充或过度填充，以得出采样装置/容器数量N。对于100毫米宽度测试，使用50毫米宽的容器时，在计算平均值和变异系数(C)之前，应取每两个相邻容器的测量值进行平均。

7.1.2    Calculate  the  arithmetical  mean  value,X,of  the   recorded   sample  depths,D₁to  Dusing  the   formula

计算记录的样本深度D₁到 DN的算术平均值X，D₁到 DN用公式 

where:

式中：

X is the arithmetical mean of all the binder depths;

是所有粘合剂深度的算术平均值；

D₁ is the binder depth retained on the first container,expressed in millimetres(mm);

D₁为第一个容器上保留的粘合剂深度，单位为毫米（mm）；

D₂ is the binder depth retained on the second container,expressed in millimetres (mm);

D₂为第二容器上保留的粘合剂深度，单位为毫米（mm）；

DN is the binder depth retained

DN是保留的粘合剂深度

 N in the n container,expressed in millimetres (mm);and is the  number of  containers.

N表示容器中的数量，以毫米（mm）为单位；n为容器的数量。