仪器设备自校规程

1

MJSC

勉县安厦建材实验检测有限责任公司

受控状态： 文件编号：04#

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版次：第一版

试验室仪器设备自校规程

编写：

审核：

批准：

颁布日期：2012年11月05日 实施日期：2012年11月15日

勉县安厦建材实验检测有限责任公司公布

前 言

为包管我公司建材检测的质量的要求，提高我公司实验室检测水平，包管检测试验结果的真实性和准确性，客观反应建立工程质量特组织我公司有关人员组织体例了《实验室仪器自校规程》。

本规程的体例，遵循科学性、实用性和可操纵性的原则。

目 录

水泥胶砂试模校验要领 ····················································································· 001

水泥沸煮箱校验要领 ························································································ 006

雷氏夹校验要领······························································································· 008

净浆尺度稠度与凝结时间测定仪校验要领 ····························································· 010

压碎指标值测定仪校验要领 ··············································································· 013

卵石或碎石针状规准仪校验要领 ········································································· 015

混凝土试模校验要领 ························································································ 017

混凝土坍落度筒校验要领 ·················································································· 019

混凝土振动台校验要领 ····················································································· 021

建立用卵石、碎石试验尺度筛校验要领 ································································ 023

建立用砂试验尺度筛校验要领 ············································································ 025

砂浆稠度仪校验要领 ························································································ 027

砂、石容量筒校验要领 ················································································································· 029

试验室用混凝土搅拌机校验要领 ································································································· 031

试验室用砂浆搅拌机校验要领 ····································································································· 033

切土环刀校验要领 ························································································································· 035

击实仪校验要领 ····························································································································· 037

钢筋冷弯弯芯校验要领 ················································································································· 040

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水泥胶砂试模校验要领

本要领适用于新的、使用中和修理后的水泥胶砂试模的查验。

1 概述

水泥胶砂试模是《水泥胶砂强度查验要领》GB 17671-1999的专用模具。

水泥胶砂试模是由底座、隔板和端板组成的三联模（一个模具成型三个试块）。

2 技能要求

2.1 试模加工面应平滑、无气孔、整洁、无粗糙不平现象。

2.2 试模的侧板和端板应由硬质钢材制造，底座可用铸铁或铸钢制造。组装后试模的模腔尺寸长（160±0.8）mm，宽（40±0.2）mm，深(40.1±0.1)mm。

2.3 试模质量：(6.25±0.25)kg。

2.4 试模组装后，内壁各打仗面应相互垂直，垂直公差不大于0.2mm。

2.5 端板与隔板事情面平面公差不大于0.03mm。

2.6 试模组装应紧密，隔板不倾斜晃动，紧固后隔板与底板的间隙应小于0.05mm，且在试件成型时不出现漏浆现象。

3 校验条件

3.1 查验用的仪器设备

3.1.1 游标卡尺，分度值0.02mm；

3.1.2 钢直尺；

3.1.3 刀口尺；

3.1.4 普通级塞尺 厚度0.02～0.1mm；

3.1.5 垂直公差专用检具；

3.1.6 台秤或电子秤，分度值不大于5g；

3.2 水泥胶砂试模应在（20±2） ℃ 的室内查验。

4 校验项目

4.1 外观、资料

4.2 试模尺寸

4.3 试模质量

4.4 试模内外貌平面公差

4.5 试模垂直公差

4.6 隔板与底板的间隙

5 校验要领

5.1 按技能要求对试模的外观和资料进行查抄。

5.2 用游标卡尺对试模的有效尺寸进行丈量。长应在宽度偏向的两端检测两点，取平均值；宽、深在长度偏向两端和中间检测三点，取平均值。

5.3 用台秤或电子秤检测试模质量。

5.4 用刀口直尺和塞尺对试模内外貌、端板和底座丈量平面公差。

5.5 用垂直公差专用检具、塞尺丈量组装后的试模的垂直公差，分别检测底座与端板、底座与隔板、隔板与端板各一点。

5.6 隔板与底板的间隙用塞尺检测。

5.7 将装满水泥胶砂的试模按水泥胶砂强度查验要领的操纵步调在振动台上振动台上振30s，查抄是否由漏浆现象。

6 校验结果处置惩罚

全部校验项目均切合尺度要求为及格。

7 校验周期

校验周期为半年。

8 校验记载

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水泥胶砂试模校验记载表

送校部分： 仪器编号： 校验编号：

校验项目 单元 技能要求 校验数据 结 果 测值 平均值

试 模 外 观 — 试模加工面应平滑、无气孔、整洁、无粗糙不平现象。

试模尺寸 长 mm 160±0.8

mm

宽 mm

40m±0.2

mm

mm

深 mm

40.1±0.1

mm

mm

试 模 质 量 kg 6.25±0.25

试模内外貌平面公差 mm ≤0.03

试模垂直公差 底座与端板 mm

≤0.2

底座与隔板 mm

隔板与端板 mm

试模隔板与底板的间隙 mm <0.05

校验结论

核验： 校验：

校验日期： 年 月 日

水泥沸煮箱校验要领

本要领适用于新的、使用中和修理后的水泥沸煮箱的校验。

1 概述

沸煮箱是GB/T1346-2011《水泥尺度稠度用水量、凝结时间、安定性查验要领》测定水泥安定性的一种专用器具。

2 技能要求

2.1 仪器外观完好、无锈蚀、无漏水现象；

2.2 仪器应有接地线，沸煮箱、程控器不得漏电；

2.3 步伐控制器控制时间为：加热至沸腾时间（30±5）min；维持沸腾时间（180±5）min。

3 校验项目及条件

3.1 校验项目

3.1.1 外观

3.1.2 漏电校验

3.1.3 步伐控制器控制时间校验

3.2 校验用器具

3.2.1 电子计时表或秒表

3.2.2 尺度温度计

3.2.3 电笔

4 校验要领

4.1 外观查抄：通过目测检察仪器外观是否完好，有无锈蚀，有无漏水现象。

4.2 沸煮箱、程控器有无漏电：接纳电笔测试。

4.3 程控器控制时间：接纳温度计测温，计时表或秒表计时，准确测出加热至沸腾时间和维持沸腾时间。

5 校验结果处置惩罚

全部校验项目均切合技能要求为及格。

6 校验周期

校验周期为一年。

7 校验记载