纸板爆破强度
五层瓦楞纸板耐破强度测试标准
五层瓦楞纸板耐破强度测试标准
一、试样制备
1.1 选取适当规格和尺寸的五层瓦楞纸板作为测试试样，保证试样表面平整、无破损、无气泡。
1.2 试样应具有代表性，避免使用异常或不合格的纸板。
1.3 试样制备过程中应保持清洁，避免污染。
二、测试设备
2.1 耐破强度测试仪应符合相关标准和规定，具有高精度、高稳定性、高可靠性。
2.2 测试仪的量程应满足测试要求，并具有自动校准功能。
2.3 测试仪应具有显示、记录和打印功能，以便观察和记录试验结果。
三、试验方法
3.1 将试样放置在测试仪的工作台上，确保试样平整、无扭曲。
3.2 设置测试仪的参数，包括加载速率、加载时间等，按照相关标准进行设置。
3.3 启动测试仪，对试样施加压力，直至试样破裂。
记录试验过程中的最大压力值。
四、试验次数
4.1 每个试样应进行至少三次试验，以获得可靠的测试结果。
4.2 试验次数可根据实际情况进行调整，以满足测试精度的要求。
五、结果处理
5.1 记录每次试验的最大压力值，取平均值作为最终的耐破强度值。
5.2 对数据进行统计分析，计算标准差、变异系数等指标，以评估数据的稳定性和可靠性。
5.3 根据测试结果，对五层瓦楞纸板的耐破强度进行评价，提出改进意见和建议。
耐破强度的测试方法、计算及影响因素
耐破强度的测试方法、计算及影响因素点击次数：1307 发布时间：2009-9-22耐破强度的测试方法、计算及影响因素一、耐破强度定义：耐破强度是指在实验条件下，纸或纸板在单位面积上所能承受的垂直于试样表面的均匀增加的最大压力。
耐破强度体现出纸箱对流通过程中搬运、装卸、撞击、撕扯力量的承受能力，是纸箱综合性能的评价方法之一。
此外，不同的地区和不同的纸箱厂对耐破强度的称谓也不尽相同，除耐破强度外，还有爆破强度、破裂强度之称，有些地方耐破强度俗称为“打磅”。
本文将对瓦楞纸板的耐破强度测试、推算及运用等方面作简要介绍。
二、耐破强度的测试方法：试验原理：耐破强度测试基本原理是将试样置于胶膜之上，将试样夹紧，然后均匀地施加压力，使试样在胶膜的顶压下凸起，直至试样破裂为止，此时仪器显示液压的最大值即为试样耐破值。
(相关检测仪器请参考此页面：/zb17-SonList-18726/)自中宝检测设备有限公司试样的采取与制备:试样面积必须比耐破度测定仪的夹盘大﹐试样不得有水印﹑折痕或明显的损伤。
在试验中不得使用曾被夹盘压过的试样。
试样的预处理:测试试样须按GB10739-89规定进行处理。
耐破度测试过程:将试样放在仪器夹盤中间，以不少于690Kpa的夹持力夹紧试样。
开动测试仪，以(170±15)ml/min 的速度逐渐加压，待试样破裂时，读取压力表上指示的数值。
测试时须注意事项:1.测试前对仪器进行校正，确保上下夹盤同心(误差不超过0.25mm)且平行；2.胶膜的上表面最高位比下夹环的顶面低；3.测试时取十个试样，正反面各测五次；4.试样须比夹环面积大。
自中宝检测设备有限公司三、耐破强度的推算及应用方法越来越多的纸箱客户在下订单时都对纸板的耐破度作出了明确规定，如果不能对纸箱的耐破强度作出准确预测，就容易造成退货或质量过剩，两者都会给纸箱厂带来巨大损失。
大量的实践已经证明，我们可以通过运用经验公式对纸箱的耐破强度作出比较准确的预测。
瓦楞纸 耐破强度要求标准
瓦楞纸耐破强度要求标准瓦楞纸是一种由瓦楞纸芯夹在两层平面纸板中夹合而成的纸质材料，由于其特殊的结构和材料组成，使得其在包装和运输领域得到了广泛的应用。
在实际使用中，瓦楞纸的耐破强度是其品质评价的重要指标之一，耐破强度的好坏直接关系到纸板的抗压能力和使用寿命。
正确制定瓦楞纸板的耐破强度标准对于保障产品包装和物流运输的安全性具有重要意义。
一、耐破强度概念瓦楞纸板的耐破强度是指在一定的试验条件下，纸板抗折断的能力。
通常使用破碎试验来测试瓦楞纸板的耐破强度，测试时将瓦楞纸板样品放在特定的设备上施加一定的力量，观察纸板在何种压力下发生破裂。
耐破强度越高，代表着该纸板的抗压能力越强。
二、耐破强度与包装运输瓦楞纸板在包装和运输中发挥着重要作用，纸板的耐破强度直接影响了货物在运输过程中的安全性。
如果纸板的耐破强度不够，容易在受力的过程中发生破裂，导致货物受损或者无法正常运输。
合理的耐破强度要求标准可以有效保障货物在包装和运输过程中的安全性。
三、瓦楞纸耐破强度标准的制定制定瓦楞纸板的耐破强度标准需要充分考虑纸板在实际使用中承受的力的大小和分布情况、包装运输过程中的振动和冲击等因素。
一般来说，瓦楞纸板的耐破强度标准应包括以下几个方面的内容：1. 标准的适用范围：明确规定该标准适用于哪种类型的瓦楞纸板，如单层瓦楞纸板、双层瓦楞纸板等。
2. 试验方法和设备：明确规定瓦楞纸板耐破强度的测试方法和测试设备，以保证测试结果的准确性和可比性。
3. 耐破强度的数值要求：根据不同类型的瓦楞纸板及其在实际使用过程中的受力情况，确定相应的耐破强度数值要求。
4. 标准的制定依据：明确该标准的制定依据，如国家相关法律法规、行业标准、国际标准等。
5. 标准的执行和监督：规定该标准的执行机构和监督部门，以保证标准的实施和执行效果。
四、瓦楞纸耐破强度标准的重要性通过制定瓦楞纸板的耐破强度标准，可以使纸板生产企业和使用者更加清楚地了解瓦楞纸板的质量要求，有助于提高纸板的生产质量和使用效果，降低产品在包装和运输过程中的损坏率，保障货物安全，降低物流成本，提升整体包装水平，促进包装行业的可持续发展。
纸箱纸板的耐破强度是指以标准规定的方式
纸箱纸板的耐破强度是指以标准规定的方式，由液压系统施加的，当弹性胶膜顶破圆形试样时的最大压力。
耐破强度单位kPa，是包括用纸的重要性能项目。
瓦楞纸箱纸板的耐破强度取决于纸箱纸板的耐破强度，而纸箱纸板的耐破强度高低主要取决于造纸纤维长度。
纤维结合力、纸页均匀度和干燥方式，并且随着定量的加大而增加。
为了消除定量的影响，便于不同定量（克重）箱纸板的比较，标准中规定的是耐破指数。
耐破指数由平均耐破强度除以定量而得，以kPa·㎡/g表示。
纸箱纸板耐破强度的测定按照GB/T 1539—2007《纸板耐破度的测定》进行，该标准等同采用ISO2759:2001《纸板耐破度的测定》。
其测试原理是将试样放置在圆形胶膜的上方，被夹盘紧密地夹住，并避免胶膜凸起。
以恒速泵入液体，凸起胶膜，直至试样破裂，施加的最大压力值即为试样的耐破强度。
耐破强度测试所用的耐破强度仪。
它由夹持系统、胶膜、液压系统和压力测量系统组成。
试样夹持系统：为了牢固而均匀地夹住试样，上、下夹盘平面是两个彼此平行的环形平面，环面应平整（但不应抛光），并带有沟纹。
上夹盘直径（31.5士0.5）mm，下夹盘孔直径（31.5士0.5）mm。
上下夹环应同心，其最大误差不得大于0.25mm。
两夹环彼此平行且平整。
测定时接触面受力均匀。
测定时为防止试样滑动，试样夹盘应具不低于690kPa的夹持力。
胶膜：胶膜是圆形的，由天然橡胶或合成橡胶制成，不应加填料或添加剂。
胶膜外表面被牢固地夹持着，在非工作状态下，胶膜相对固定胶膜的夹盘外表面约低5.5mm。
胶膜材料和结构应使胶膜凸出下夹盘的高度与弹性助力相适应，即凸出高度：（10士0.2）mm，其阻力范围为170kPa—220kPa；凸出高度：（18士0.2）mm，其阻力范围为250kPa—350kPa。
胶膜在使用时应定期检查，当凸出高度不能满足要求时应及时更换。
液压系统：向胶膜内表面提供持续的液压，直至试样破裂。
常用纸箱对应的边压和耐破强度表以及计算方法
5600
1350
44 ECT B/C
7700
1700
48 ECT B/C
8400
1700
51 ECT B/C
8925
1700
61 ECT B/C
10675
2290
44 ECT A
7700
1600
32 ECT B
5600
1530
32 ECT C
5600
1530
44 ECT C
7700
226.7078 / 25.4=8.925504?牛顿/毫米
8.925504 x 1000=8925.504?牛顿/
米
这样就得出了表里的得数：
51 ECT B/C
8925
1700
测试的计算方法：
工厂测试设备是显示公斤数的，边压测试是用25.4mm x 100mm的纸板。所以用边压的结果乘9.8就能得出牛顿。因为压的纸板长度是100mm,所以再乘10就得出米。
很多人不知道ECT边压怎么来的：
下面我们以51ECT B/C为例：
51ECT B/C?的意思是每1平方英寸的纸板要能承受51磅的压力。而下表要求的边压强度为牛顿/米。所以要换算：
1、把51磅变为牛顿
51 / 2.2046=23.13345公斤
牛顿
51磅=226.7078牛顿
2、已知每英寸的力，要求每米的力，所以再要把英寸变成米：
所以可以很简单办法的算出牛顿/米的结果：
用25.4mm x 100mm的纸板测出结果，再用测试出来的公斤数X 98=实际纸箱的N/M数字。（爆裂强度的算法也一样）
下面是一些常用的纸箱的ECT对应值
MATERIAL材料
纸箱耐破强度测试方法
纸箱耐破强度测试方法1范围本标准规定了以液压增加法测定瓦楞纸板的耐破强度的方法。
本标准适用于耐破度为350-5500kpa的瓦楞纸板。
2引用标准a)中华人民共和国国家标准GB/T6545-1998b)GB450-89纸和纸板试样的采取c)GB10739-89纸浆、纸和纸板试样处理与试验的标准大气3试验原理将闭幕式样置于胶膜之上，用试样夹夹紧，然后均匀地施加压力，使试样与胶膜一起自由凸起，直至试样破裂为止。
试样耐破度是施加液压的最大值。
4试验仪器a)试样夹盘系统：上夹盘孔直径（±）mm，下夹盘孔直径（±）mmb)上下夹环应同心，其最大误差不得大于0.25mm。
两夹环彼此平行且平整。
测定时接触面受力均匀。
测定时为防止试样滑动，试样夹盘应具有不低于690kpa的夹持力。
但这样的压力一般会使试样的瓦楞压塌，应在报告中注明。
c)胶膜胶膜是圆形的，由弹性材料组成。
胶膜被牢固地夹持着，它的上表面比下夹环的顶面约低5.5mm。
d)胶膜材料和结构应使胶膜凸出下夹盘的高度与弹性阻力相适应，即：凸出高度为10mm时，其阻力范围为（170-220）kpa；凸出18mm时，其阻力范围为（250-350）kpa。
5试样的采取和处理a)试样的采取按GB450的规定进行。
b)试样应按GB10739的规定进行温湿处理。
c)试样面积必须比耐破度测定仪的夹盘大，试样不得有水印、挤痕或明显的损伤，在试验中不得使用曾被夹盘压过的试样。
6测试步骤a)在条规定的大气条件下进行载样和试验。
b)开启试样的夹盘，将试样夹紧在两试样夹盘的中间，然后开动测定仪，以（170±15）ml/min的速度逐渐增加压力。
c)在试样爆破时，读取压力表上指示的数值。
然后松开夹盘，使读数指针退回到开始位置。
当试样有明显滑动时应将数据舍弃7结果表示以正反面各10个贴向胶膜的试样进行测定，以所有测定值的算术平均值（kpa）表示。
8试验报告a)最终测试结果合格/不合格；b)接下去如果操作改进如果是不合格；c)本国家标准的编号d)样品种类、规格；e)试验所用的标准；f)试验场所的大气条件；g)所用试验仪的型号和加压速度；h)试验结果的算术平均值；其他有助于说明试验结果的资料。
瓦楞纸板的边压强度和耐破强度计算公式
创作编号：GB8878185555334563BT9125XW创作者：凤呜大王*瓦楞纸板的边压强度和耐破强度计算公式：1.耐破强度：BST（Bursting Strength Test）耐破强度是静态破裂强度，单位千帕（Kpa）。
耐破强度可由耐破强度测试仪测定。
瓦楞原纸和箱纸板等原料的耐破强度符合相关标准，瓦楞纸板的耐破强度可以由所用的原料推测得出，它等于各层箱纸板的耐破强度之和再乘以系数0.95，与瓦楞层无关。
例如，单瓦楞纸板和双瓦楞纸板的耐破强度分别计算如下：单瓦楞纸板（耐破强度）BST＝（面纸BST＋里纸BST）×0.95双瓦楞纸板（耐破强度）BST＝（面纸BST＋夹芯BST 里纸BST）*0.95 因为瓦楞纸板各层箱纸板之间有空隙，缓冲能力增加了，但是更容易被各个击破，所以上述公式中，各层箱纸板的耐破强度之和再乘以系数0.95得到的结果，才与实际情况相符。
耐破强度与瓦楞层无关，是因为：一方面，瓦楞层的耐破强度比箱纸板低得多，另一方面，由于耐破强度是静态耐破裂强度，瓦楞层的缓冲更大，从而大大降低其耐破强度，以至于可忽略不计。
2.戳穿强度PET（Puncture Energy Test）戳穿强度是动态破裂强度，单位焦耳（J）。
它真实的反应了瓦楞纸板和纸箱受冲击的情况。
戳穿强度的确定比耐破强度复杂的多，因为它不仅与箱板纸有关，还与瓦楞层有关。
戳穿强度与耐破强度两者线性相关，实际推测中，可以根据耐破强度得到大致的戳穿强度，计算公式如下：PET＝0.0054BST＋2.163583.边压强度ECT（Edge Crush Test of Corrugated Fiberboard）和环压强度RCT（Ring Crush Test）边压强度即瓦楞纸板的边缘压缩强度，单位牛/米（N/m）。
环压强度RCT主要是指箱板纸和瓦楞纸的横向压缩强度，单位牛/米（N/m）。
瓦楞纸板的边压强度与箱板纸和瓦楞纸的环压强度RCT有关，计算公式如下：单瓦楞纸板边压强度ECT＝面纸RCT＋里纸RCT＋瓦楞纸RCT×楞率双瓦楞纸板边压强度ECT＝面纸RCT＋里纸RCT＋夹芯纸RCT＋第一层瓦楞纸RCT×相应楞率＋第二层瓦楞纸RCT×相应楞率%国外有一些包装科研机构通过大量研究工作，归纳出一系列的计算公式，芬兰一家包装科研机构做出了大量测试，得出的成果具有代表性，非常符合实际情况。
纸箱耐破强度国际标准单位
纸箱耐破强度国际标准单位
纸箱是现代物流中不可或缺的包装材料，其耐破强度直接影响到包装物品的安全运输。
纸箱的耐破强度是指在垂直于纸箱纹理的方向上，纸箱材料能够承受的最大压力。
这个指标是衡量纸箱质量的重要参数，也是包装行业关注的焦点。
国际上对纸箱耐破强度的测试方法有严格的标准。
在国际标准单位中，纸箱耐破强度的单位是牛顿（N）。
纸箱耐破强度测试仪器的精度要求较高，一般采用电子测量设备。
测试时，将纸箱样品放置在测试设备上，通过逐渐增加压力的方式，测定纸箱样品破裂时的压力值。
这个值即为纸箱的耐破强度。
在我国，纸箱耐破强度的标准为GB/T 15194-2009《包装材料纸和纸板耐破强度试验方法》。
根据这一标准，纸箱生产企业和检验机构可以准确地检测纸箱的耐破强度，以确保产品质量和安全。
要提高纸箱的耐破强度，可以从以下几个方面入手：
1.选用优质的原纸材料。
优质原纸具有较高的纤维密度和强度，有利于提高纸箱的耐破强度。
2.合理设计纸箱结构。
纸箱的结构设计对其耐破强度有很大影响。
通过优化纸箱的层数、纸厚和楞型等参数，可以提高纸箱的耐破强度。
3.生产工艺控制。
在纸箱生产过程中，严格控制温度、湿度、压力等工艺参数，有助于提高纸箱的耐破强度。
4.后期处理。
对纸箱进行防水、防潮、防腐等处理，可以提高纸箱的使用寿命和耐破强度。
总之，纸箱耐破强度在包装行业中具有重要意义。
GBT6545-1998 瓦楞纸板耐破强度的测定方法
中华人民共和国国家标准瓦楞纸板耐破强度的测定方法GB/T6545-1998 eqvISO27591983Corrugated fibrdboard-Determinution of burstiog strength代替GB6545-861范围本标准规定了以液压增加法测定瓦楞纸板的耐破强度的方法。
本标准适用于耐破度为350-5500kpa的瓦楞纸板。
2引用标准下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。
本标准出版时，所示版本均为有效。
所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。
GB450-89纸和纸板试样的采取GB10739-89纸浆、纸和纸板试样处理与试验的标准大气3定义本标准采用下列定义。
耐破强度 Bursting strength在试验条件下，瓦楞纸板在单位上所能承受的垂直于试样表面的均匀增加的最大压力。
4试验原理将闭幕式样置于胶膜之上，用试样夹夹紧，然后均匀地施加压力，使试样与胶膜一起自由凸起，直至试样破裂为止。
试样耐破度是施加液压的最大值。
5试验仪器5.1试样夹盘系统上夹盘直径（31.5±0.%）mm，下夹盘孔直径（31.5±0.5）mm。
上下夹环应同心，其最大误差不得大于0.25mm。
两夹环彼此平行且平整。
测定时接触面受力均匀。
测定时为防止试样滑动，试样夹盘应具有不低于690kpa的夹持力。
但这样的压力一般会使试样的瓦楞压塌，应在报告中注明。
5.2胶膜胶膜是圆形的，由弹性材料组成。
胶膜被牢固地夹持着，它的上表面比下夹环的顶面约低5.5mm。
胶膜材料和结构应使胶膜凸出下夹盘的高度与弹性阻力相适应，即：凸出高度为10mm时，其阻力范围为（170-220kpa；凸出18mm时，其阻力范围为（250-350）kpa。
6试样的采取和处理6.1试样的采取按GB450的规定进行。
6.2试样应按GB10739的规定进行温湿处理。
7试样的制备试样面积必须比耐破度测定仪的夹盘大，试样不得有水印、挤痕或明显的损伤。
GBT6545---瓦楞纸板耐破强度的测定法
GBT6545——瓦楞纸板耐破强度的测定法一、概述瓦楞纸板作为包装材料的重要组成部分，其耐破强度直接关系到包装的稳固性和安全性。
本标准规定了瓦楞纸板耐破强度的测定方法，旨在为生产企业、检测机构和相关用户提供统一的测试依据。
二、测试原理瓦楞纸板耐破强度是指在规定的试验条件下，瓦楞纸板在受到均匀增大的压力作用时，所能承受的最大压力值。
测试原理是通过在一定面积的试样上，以均匀的速度增加压力，直至试样破裂，记录此时的压力值。
三、测试仪器与试剂1. 测试仪器：耐破强度试验机、圆形冲模（直径为（30±0.5）mm）、夹具、计时器等。
2. 试剂：无特殊要求。
四、试样制备1. 从瓦楞纸板样品中裁取至少5个面积为100cm²的试样。
2. 确保试样表面无折痕、损伤或其他影响测试结果的缺陷。
3. 试样应在标准大气条件下进行处理，处理时间不少于4小时。
五、测试步骤1. 将耐破强度试验机调整至水平状态，确保仪器运行正常。
2. 将圆形冲模安装在耐破强度试验机上。
3. 将试样放置在夹具中，确保试样与冲模紧密贴合。
4. 启动耐破强度试验机，以（100±10）mm/min的速度增加压力。
5. 观察试样破裂时的压力值，记录数据。
6. 重复步骤45，直至所有试样测试完毕。
六、结果计算与表示1. 计算每个试样的耐破强度值（单位：kPa），取其算术平均值。
2. 结果表示：瓦楞纸板的耐破强度平均值，保留一位小数。
七、注意事项1. 测试过程中，确保试样与冲模紧密贴合，避免产生误差。
2. 测试环境应保持稳定，避免温度、湿度等因素对测试结果产生影响。
3. 定期对耐破强度试验机进行校准，确保测试数据的准确性。
八、测试结果判定在得到瓦楞纸板的耐破强度平均值后，应与产品标准或客户要求进行比较。
若测试结果符合或超过标准要求，则判定为合格；若测试结果低于标准要求，则判定为不合格。
对于不合格的瓦楞纸板，应分析原因并采取措施进行改进。
纸箱爆裂强度标准 tappi 810
Names of suppliers of testing equipment and materials for this method may be found on the Test Equipment Suppliers list in the bound 1set of TAPPI Test Methods, or may be available from the TAPPI Technical Operations Department.Approved by the Fiberboard Shipping Container Testing Committee of the Corrugated Containers DivisionTAPPIT 810 om-98SUGGESTED METHOD – 1966OFFICIAL TEST METHOD – 1980REVISED – 1985REVISED – 1992REVISED – 1998© 1998 TAPPIThe information and data contained in this document were preparedby a technical committee of the Association. The committee and theAssociation assume no liability or responsibility in connection with theuse of such information or data, including but not limited to anyliability or responsibility under patent, copyright, or trade secret laws.The user is responsible for determining that this document is the mostrecent edition published.Bursting strength of corrugated and solid fiberboard1.ScopeThis method describes the procedure for measuring the bursting strength of single wall and double wall corrugated and solid fiberboard. It is not designed to be used for the bursting strength of paper (TAPPI T 403 "Bursting Strength of Paper"), paperboard and linerboard (TAPPI T 807 "Bursting Strength of Paperboard and Linerboard"), or triple wall corrugated board.2.SignificanceThe bursting strength of combined board is primarily an indication of the character of the materials used in manufacturing a fiberboard box and has value in this respect. Bursting strength of combined board is an optional requirement of the various carrier regulations for shipping containers. The bursting strength of the component paperboard is an important control test in the paperboard mill since the conformity of the finished container is generally controlled by the bursting strength of the paperboard. Triple-wall corrugated board cannot be tested suitably by the bursting method. Testing of double-wall board is of questionable accuracy since it is rarely possible to get sufficiently simultaneous bursts of the multiple facings. The test is simple and rapid to execute, but it must be recognized that it is subject to serious errors if instrument, diaphragm, and gages are not properly maintained or if improper procedures are used (1, 2, 3).3.Apparatus3.1Bursting tester , consisting of the following:13.1.1Means for clamping the test specimen between two annular, plane surfaces having fine concentric tool marks to minimize slippage. The upper clamping platen (clamping ring) has a minimum diameter of 95.3 mm (3.75 in.),a minimum thickness of 9.53 mm (0.375 in.), and a circular opening of 31.50 ± 0.03 mm (1.240 ± 0.001 in.) diameter.The lower edge of the opening (side in contact with the board) has a 0.64 mm (0.025 in.) radius. The lower clamping surface (diaphragm plate) has a thickness of 5.56 ± 0.08 mm (0.219 ± 0.003 in.) with an opening 31.50 ± 0.03 mm (1.240± 0.001 in.) in diameter and an overall diameter at least as large as the upper clamping plate.. The upper edge of the opening (in contact with the board) has a 0.41 mm ± 0.1 mm (0.016 ± 0.004 in.) radius and the lower edge of the opening (in contact with the rubber diaphragm) has a radius of 3.1 ± 0.1 mm (0.122 ± 0.004 in.) to prevent cutting the rubber when pressure is applied. The upper clamping ring is connected to the clamping mechanism through a swivel joint tofacilitate an even clamping pressure. The openings in the two clamping plates are required to be concentric to within 0.13 mm (0.0051 in.) and their clamping faces flat and parallel (see T 807 Appendix A.1.1).3.1.2 A molded (disk-shaped) diaphragm requiring a pressure of not less than 160 kPa nor more than 210 kPa (not less than 23 psi nor more than 30 psi) to distend it to a height of 9.53 mm (0.375 in.) above the diaphragm plate (see T 807, Appendix A.1.2.)3.1.3Means of forcing liquid into the pressure chamber below the diaphragm at a steady rate of 170 ± 16 mL/min (0.045 ± 0.004 gal/min). This pressure shall be generated by a motor-driven piston forcing a liquid (glycerin) into the pressure chamber of the apparatus (see T 807, Appendix A.1.3).3.1.4 A Bourdon pressure gage of the maximum reading or the lazy hand type. The scale should have a radius of 47.6 mm (1.875 in.) with graduations extending over a minimum arc of 270° indicating bursting pressure in kPa or psi, with an accuracy of 0.5% of full scale, and have sufficient capacity so that all readings can be maintained in the middle half of the scale. In its operating position, have the gage inclined between horizontal and not over 30° from the horizontal. When more than one gage is mounted on a single apparatus, only the gage on which the measurement is being made is open to the hydraulic system so as not to reduce the rate of distention of the sample.3.1.5As an alternate to 3.1.4, a pressure transducer with suitable signal processing circuitry to display the maximum bursting pressure may be used provided it gives comparable results.3.1.6Electronic instruments are now available that automate and speed up the testing procedure. These instruments must maintain the critical elements of 3.1.1 through 3.1.3.NOTE 1:Care should be taken when comparing results between bourdon tube and electronic measuring systems. Differences in test results can arise due to differences in system expansibility and speed of data acquisition.3.1.7 Vernier caliper with micrometer gage to measure penetration of the upper clamping platen into the board.4.Calibration4.1Calibrate apparatus as per Instrument Manufacturers specifications.4.2Appendix A.1 of TAPPI T 807 describes a calibration procedure for one manufacturers apparatus.5.Sampling and test specimens5.1Solid fiberboard5.1.1From each test unit obtained in accordance with TAPPI T 400 "Sampling and Accepting a Single Lot of Paper, Paperboard, Containerboard, or Related Product," prepare five specimens at least 305 × 305 mm (12 × 12 in.). If the dimensions of each sheet of the test unit are too small, then use specimens no less than 102 mm (4 in.) wide and of sufficient length or number to permit a total of 20 bursts.5.2Corrugated board5.2.1From each test unit obtained in accordance with T 400, prepare five specimens at least 305 × 305 mm (12 × 12 in.). If size does not permit this, take specimens no less than 152 mm (6 in.) wide and of sufficient length or number to permit a total of 20 bursts.6.ConditioningCondition all specimens prior to testing and conduct tests in an atmosphere in accordance with TAPPIT 402 "Standard Conditioning and Testing Atmospheres for Paper, Board, Pulp Handsheets, and Related Products."7.Procedure7.1Solid fiberboard7.1.1Insert the specimen between the clamping ring and diaphragm plate, then apply a clamping pressure of 690 kPa (100 psi) either manually, pneumatically, or hydraulically and verify the pressure applied to the specimen. The specimen must not slip during the test.7.1.2Apply the bursting pressure by forcing the piston forward until the diaphragm ruptures the specimen. Record the maximum pressure registered.7.1.3Allot a minimum area of 102 x 102 mm (4 × 4 in.) for each burst to prevent the clamping areas from overlapping. Make an equal number of bursts from each side of the specimen. Arrange that no more than one burst fromeach side of the specimen falls in the same line of machine formation. Make no test on areas containing wrinkles, creases, or other obvious imperfections. Make a minimum of 6 bursts on each 305 × 305 mm (12 × 12 in.) specimen and a maximum of 10 bursts to determine the average bursting strength of the material tested.7.2Corrugated board7.2.1Insert the specimen between the clamping ring and the diaphragm plate. Apply a clamping pressure so that the top compression ring moves into the board to a depth as follows: "A" flute 2.08 ± 0.05 mm (0.082 ± 0.002 in.); "B" flute 0.81 ± 0.05 mm (0.032 ± 0.002 in.); "C" flute 1.62 ± 0.05 mm (0.062 ± 0.002 in.) and for Double Wall 3.05± 0.07 mm (0.12 ± 0.003 in.). The specimen must not slip during the test. Apply the bursting pressure by forcing the piston forward until the diaphragm ruptures the specimen. Record the maximum pressure registered.NOTE 2:On some testers equipped with a clamping wheel this corresponds to: "A" flute 3/4 turn; "B" flute 1/4 turn; "C" flute ½ turn and double wall 1 turn. Due to the surface and frictional characteristics of the board, the penetration depth to prevent slippage couldvary by +1/4 of a turn. If the tester is equipped with a hand wheel, pneumatic or hydraulic loading system adjust clamping pressureso that the sample will just slip between the clamping rings, measure the distance between the yoke and top clamping ring (see Fig.1), and adjust the pressure to get the specified penetration depth. There should be no slipping during the test, if slippage does occurincrease the penetration depth.7.2.2On corrugated board a minimum area of 152 × 152 mm (6 × 6 in.) is required for each burst. A22maximum of four bursts, two from each direction, is therefore made on each 930 cm (1 ft) specimen. A margin of at least 25 mm (1 in.) is left between the periphery of the clamping ring and the edge of the specimen. Locate the bursts so that not more than one burst from each direction is made in line with the same corrugation. Make a minimum of 20 bursts.NOTE 3:On testers with adjustable clamp pressure (pneumatic or hydraulic) the following alternative clamp procedure can be used.Determine the clamping force required to collapse the flutes of the test material. Reduce the clamp pressure by 35 kPa (5 psi) torun the burst tests.NOTE 4:Occasionally a "double pop" may occur on some corrugated materials. These results should be included in the report and labeled as double pops.8.Report2For each test unit report the average of the test determinations in kilopascals (or in lb/in. equivalent to kPa/6.89) to three significant figures.NOTE 5:For purposes of determining compliance with the optional carrier classification requirements, Uniform Freight Classification Rule41 and National Motor Freight Classification Item 222 specify a minimum bursting test rather than an average of the testdeterminations. These rules state, in effect, that only one burst (out of the six prescribed) is permitted to fall below the minimumtest required. Board failing to pass the foregoing will be accepted if, in a retest consisting of 24 bursts, not over 4 bursts fall belowthe minimum test required.9.Precision9.1Repeatability (within a laboratory) = 5.7%9.2Reproducibility (between laboratories) = 13.5%9.3The above values were obtained using test results, each an average of 20 determinations among 12 laboratories on 6 different corrugated combinations. The interlaboratory study was conducted in accordance with TAPPI T 1200 "Interlaboratory Evaluation of Test Methods Used with Paper and Board Products" by the Fibre Box Association Technical Committee, 1971-2.10.KeywordsCorrugated boards, Fiber boards, Burst strength.。
瓦楞纸板耐破强度的测定法
瓦楞纸板耐破强度的测定法适用：耐破度为350-5500kPa的瓦楞纸板。
一、试验原理耐破强度是指：在试验条件下，瓦楞纸板在单位面积上所能承受的垂直于式样表面的均匀增加的最大压力。
将式样置于胶膜之上，用式样夹夹紧，然后均匀地施加压力，使式样与胶膜一起自由起，直至式样破裂为止。
式样耐破度是施加液压的最大值。
二、试验设备1、式样夹盘系统上夹盘直径（31.3±0.5）mm,下夹盘孔直径。
上下夹环应同心，其最大误差不得大于0.25mm,两夹环彼此平行且平整。
测定时接触面受力均匀。
测定时为防止式样滑动，式样夹盘应具不不低于690的夹持力。
但这样的压力一般会合式栗的瓦楞压塌，应在报告中注明。
2、胶膜胶膜是圆形的，由弹性材料组成。
胶膜被牢固地夹持着，它的上表面比下夹环的顶面约低5.5mm。
胶膜材料和结构应使胶膜出下夹盘的高度与弹性阻力相适应。
出高度为10m时，其阻力范围为（170-220）KPA：出18mm时，其阻力范围为（250-350）kPa。
1、支撑装置支撑放试验样的跌落过程中，应能使试验样品处于所要求的预定状态。
2、释放装置在释放试验样品的跌落过程中，应使试验样品不碰到装置的任何部件，保证其自由跌落。
三、试样的制备试样面积必须比耐破度测定仪的夹盘大，试样不得有水印、折痕或明显的损伤。
在试验中不得使用曾被夹盘压过的试样。
试样应进行温湿处理。
四、试验步骤开启试样的夹盘，将试样夹紧在两试样夹盘的中间，然后开动测定仪，以（17015）Ml/min的速度逐渐增加压力。
在试样爆破时，读取压力表上指示的数值。
然后松开夹盘，使读数指针退回动开始位置。
当试样有明显滑动时应将数据舍弃。
五、结果表示以正反两各10个贴向胶膜的试样进行测定，以所有值的算术平均值（kPa）表示.六、试验报告试验报告应包括下列内容：1、本国家标准编号；2、试验样品的种类、规格；3、试验所用的标准；4、试验场所的大气条件；5、所用试验仪的名称和型号、所用夹持刀；6、纸板正反面耐破度的平均值，保留三位有效数字；7、试验日期、地点，试验人签字、试验单位盖章。
纸箱爆裂强度标准 tappi 810
Names of suppliers of testing equipment and materials for this method may be found on the Test Equipment Suppliers list in the bound 1set of TAPPI Test Methods, or may be available from the TAPPI Technical Operations Department.Approved by the Fiberboard Shipping Container Testing Committee of the Corrugated Containers DivisionTAPPIT 810 om-98SUGGESTED METHOD – 1966OFFICIAL TEST METHOD – 1980REVISED – 1985REVISED – 1992REVISED – 1998© 1998 TAPPIThe information and data contained in this document were preparedby a technical committee of the Association. The committee and theAssociation assume no liability or responsibility in connection with theuse of such information or data, including but not limited to anyliability or responsibility under patent, copyright, or trade secret laws.The user is responsible for determining that this document is the mostrecent edition published.Bursting strength of corrugated and solid fiberboard1.ScopeThis method describes the procedure for measuring the bursting strength of single wall and double wall corrugated and solid fiberboard. It is not designed to be used for the bursting strength of paper (TAPPI T 403 "Bursting Strength of Paper"), paperboard and linerboard (TAPPI T 807 "Bursting Strength of Paperboard and Linerboard"), or triple wall corrugated board.2.SignificanceThe bursting strength of combined board is primarily an indication of the character of the materials used in manufacturing a fiberboard box and has value in this respect. Bursting strength of combined board is an optional requirement of the various carrier regulations for shipping containers. The bursting strength of the component paperboard is an important control test in the paperboard mill since the conformity of the finished container is generally controlled by the bursting strength of the paperboard. Triple-wall corrugated board cannot be tested suitably by the bursting method. Testing of double-wall board is of questionable accuracy since it is rarely possible to get sufficiently simultaneous bursts of the multiple facings. The test is simple and rapid to execute, but it must be recognized that it is subject to serious errors if instrument, diaphragm, and gages are not properly maintained or if improper procedures are used (1, 2, 3).3.Apparatus3.1Bursting tester , consisting of the following:13.1.1Means for clamping the test specimen between two annular, plane surfaces having fine concentric tool marks to minimize slippage. The upper clamping platen (clamping ring) has a minimum diameter of 95.3 mm (3.75 in.),a minimum thickness of 9.53 mm (0.375 in.), and a circular opening of 31.50 ± 0.03 mm (1.240 ± 0.001 in.) diameter.The lower edge of the opening (side in contact with the board) has a 0.64 mm (0.025 in.) radius. The lower clamping surface (diaphragm plate) has a thickness of 5.56 ± 0.08 mm (0.219 ± 0.003 in.) with an opening 31.50 ± 0.03 mm (1.240± 0.001 in.) in diameter and an overall diameter at least as large as the upper clamping plate.. The upper edge of the opening (in contact with the board) has a 0.41 mm ± 0.1 mm (0.016 ± 0.004 in.) radius and the lower edge of the opening (in contact with the rubber diaphragm) has a radius of 3.1 ± 0.1 mm (0.122 ± 0.004 in.) to prevent cutting the rubber when pressure is applied. The upper clamping ring is connected to the clamping mechanism through a swivel joint tofacilitate an even clamping pressure. The openings in the two clamping plates are required to be concentric to within 0.13 mm (0.0051 in.) and their clamping faces flat and parallel (see T 807 Appendix A.1.1).3.1.2 A molded (disk-shaped) diaphragm requiring a pressure of not less than 160 kPa nor more than 210 kPa (not less than 23 psi nor more than 30 psi) to distend it to a height of 9.53 mm (0.375 in.) above the diaphragm plate (see T 807, Appendix A.1.2.)3.1.3Means of forcing liquid into the pressure chamber below the diaphragm at a steady rate of 170 ± 16 mL/min (0.045 ± 0.004 gal/min). This pressure shall be generated by a motor-driven piston forcing a liquid (glycerin) into the pressure chamber of the apparatus (see T 807, Appendix A.1.3).3.1.4 A Bourdon pressure gage of the maximum reading or the lazy hand type. The scale should have a radius of 47.6 mm (1.875 in.) with graduations extending over a minimum arc of 270° indicating bursting pressure in kPa or psi, with an accuracy of 0.5% of full scale, and have sufficient capacity so that all readings can be maintained in the middle half of the scale. In its operating position, have the gage inclined between horizontal and not over 30° from the horizontal. When more than one gage is mounted on a single apparatus, only the gage on which the measurement is being made is open to the hydraulic system so as not to reduce the rate of distention of the sample.3.1.5As an alternate to 3.1.4, a pressure transducer with suitable signal processing circuitry to display the maximum bursting pressure may be used provided it gives comparable results.3.1.6Electronic instruments are now available that automate and speed up the testing procedure. These instruments must maintain the critical elements of 3.1.1 through 3.1.3.NOTE 1:Care should be taken when comparing results between bourdon tube and electronic measuring systems. Differences in test results can arise due to differences in system expansibility and speed of data acquisition.3.1.7 Vernier caliper with micrometer gage to measure penetration of the upper clamping platen into the board.4.Calibration4.1Calibrate apparatus as per Instrument Manufacturers specifications.4.2Appendix A.1 of TAPPI T 807 describes a calibration procedure for one manufacturers apparatus.5.Sampling and test specimens5.1Solid fiberboard5.1.1From each test unit obtained in accordance with TAPPI T 400 "Sampling and Accepting a Single Lot of Paper, Paperboard, Containerboard, or Related Product," prepare five specimens at least 305 × 305 mm (12 × 12 in.). If the dimensions of each sheet of the test unit are too small, then use specimens no less than 102 mm (4 in.) wide and of sufficient length or number to permit a total of 20 bursts.5.2Corrugated board5.2.1From each test unit obtained in accordance with T 400, prepare five specimens at least 305 × 305 mm (12 × 12 in.). If size does not permit this, take specimens no less than 152 mm (6 in.) wide and of sufficient length or number to permit a total of 20 bursts.6.ConditioningCondition all specimens prior to testing and conduct tests in an atmosphere in accordance with TAPPIT 402 "Standard Conditioning and Testing Atmospheres for Paper, Board, Pulp Handsheets, and Related Products."7.Procedure7.1Solid fiberboard7.1.1Insert the specimen between the clamping ring and diaphragm plate, then apply a clamping pressure of 690 kPa (100 psi) either manually, pneumatically, or hydraulically and verify the pressure applied to the specimen. The specimen must not slip during the test.7.1.2Apply the bursting pressure by forcing the piston forward until the diaphragm ruptures the specimen. Record the maximum pressure registered.7.1.3Allot a minimum area of 102 x 102 mm (4 × 4 in.) for each burst to prevent the clamping areas from overlapping. Make an equal number of bursts from each side of the specimen. Arrange that no more than one burst fromeach side of the specimen falls in the same line of machine formation. Make no test on areas containing wrinkles, creases, or other obvious imperfections. Make a minimum of 6 bursts on each 305 × 305 mm (12 × 12 in.) specimen and a maximum of 10 bursts to determine the average bursting strength of the material tested.7.2Corrugated board7.2.1Insert the specimen between the clamping ring and the diaphragm plate. Apply a clamping pressure so that the top compression ring moves into the board to a depth as follows: "A" flute 2.08 ± 0.05 mm (0.082 ± 0.002 in.); "B" flute 0.81 ± 0.05 mm (0.032 ± 0.002 in.); "C" flute 1.62 ± 0.05 mm (0.062 ± 0.002 in.) and for Double Wall 3.05± 0.07 mm (0.12 ± 0.003 in.). The specimen must not slip during the test. Apply the bursting pressure by forcing the piston forward until the diaphragm ruptures the specimen. Record the maximum pressure registered.NOTE 2:On some testers equipped with a clamping wheel this corresponds to: "A" flute 3/4 turn; "B" flute 1/4 turn; "C" flute ½ turn and double wall 1 turn. Due to the surface and frictional characteristics of the board, the penetration depth to prevent slippage couldvary by +1/4 of a turn. If the tester is equipped with a hand wheel, pneumatic or hydraulic loading system adjust clamping pressureso that the sample will just slip between the clamping rings, measure the distance between the yoke and top clamping ring (see Fig.1), and adjust the pressure to get the specified penetration depth. There should be no slipping during the test, if slippage does occurincrease the penetration depth.7.2.2On corrugated board a minimum area of 152 × 152 mm (6 × 6 in.) is required for each burst. A22maximum of four bursts, two from each direction, is therefore made on each 930 cm (1 ft) specimen. A margin of at least 25 mm (1 in.) is left between the periphery of the clamping ring and the edge of the specimen. Locate the bursts so that not more than one burst from each direction is made in line with the same corrugation. Make a minimum of 20 bursts.NOTE 3:On testers with adjustable clamp pressure (pneumatic or hydraulic) the following alternative clamp procedure can be used.Determine the clamping force required to collapse the flutes of the test material. Reduce the clamp pressure by 35 kPa (5 psi) torun the burst tests.NOTE 4:Occasionally a "double pop" may occur on some corrugated materials. These results should be included in the report and labeled as double pops.8.Report2For each test unit report the average of the test determinations in kilopascals (or in lb/in. equivalent to kPa/6.89) to three significant figures.NOTE 5:For purposes of determining compliance with the optional carrier classification requirements, Uniform Freight Classification Rule41 and National Motor Freight Classification Item 222 specify a minimum bursting test rather than an average of the testdeterminations. These rules state, in effect, that only one burst (out of the six prescribed) is permitted to fall below the minimumtest required. Board failing to pass the foregoing will be accepted if, in a retest consisting of 24 bursts, not over 4 bursts fall belowthe minimum test required.9.Precision9.1Repeatability (within a laboratory) = 5.7%9.2Reproducibility (between laboratories) = 13.5%9.3The above values were obtained using test results, each an average of 20 determinations among 12 laboratories on 6 different corrugated combinations. The interlaboratory study was conducted in accordance with TAPPI T 1200 "Interlaboratory Evaluation of Test Methods Used with Paper and Board Products" by the Fibre Box Association Technical Committee, 1971-2.10.KeywordsCorrugated boards, Fiber boards, Burst strength.。
瓦楞纸板耐破强度的测定法
瓦楞纸板耐破强度的测定法Corrugated fibreboard-Determination of bursting strengthGB/T 6545-19891 范围本标准规定了以液压增加法测定瓦楞纸板的耐破强度的方法。
本标准适用于耐破度为350-5500kpa的瓦楞纸板。
2 引用标准下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。
本标准出版时，所示版本均为有效。
所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。
GB 450-89 纸和纸板试样的采取GB 10739-89 纸浆、纸和纸板试样处理与试验的标准大气3 定义本标准采用下列定义。
耐破强度 Bursting strenth在试验条件下，瓦楞纸板在单位面积上所能承受的垂直于试样表面的均匀增加的最大压力。
4 试验原理将试样置于胶膜之上，用试样夹紧，然后均匀地施加压力，使试样与胶膜一起自由凸起，直至试样破裂为止。
试样耐破度是施加液压的最大值。
5 试验仪器5.1 试样夹盘系统上夹盘直径（31.5+0.5）mm，下夹盘孔直径（31.5+0.5）mm。
上下夹环应同心，其最大误差不得大于0.25mm。
两夹环彼此平行且平整。
测定时接触面受力匀。
测定时为防止试样滑动，试样夹盘应具有不低于690kpa的夹持力。
但这样的压力一般会使试样的瓦楞压塌，应在报告中注明。
5.2 胶膜胶膜是圆形的，由弹性材料组成。
胶膜被牢固地夹持着，它的上表面比下夹环的顶面约5.5mm。
胶膜材料和结构应使胶膜凸出下夹盘的高度与弹性阻力相适应，即：凸出高度为10mm 时，其阻力范围为（170-220）kpa；凸出18mm时，其阻力范围为（250-350）kpa。
6 试样的采取和处理6.1 试样的采取按GB 450的规定进行。
6.2 试样应按GB 10739的规定进行温湿处理。
7 试样的制备试样面积必须比耐破度测定仪的夹盘大，试样不得有水印、折痕或明显的损伤。