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Question

关于LNGC产品颜色和密度说明

尊敬的沪东中华造船（集团）有限公司领导：

您们好！

针对贵司提出的我司近期供应的一批珍珠岩，颜色有异常现象，比重偶尔出现达到双方约定的标准上限，经过本司品质技术部和生产部共同分析，结果如下：

1、此批珍珠岩里面含有微量黑色颗粒状物质，经分析为产品中含有的Fe2O3， Al2O3和K2O等成分。据6月24日在国家非金属矿深加工工程技术研究中心物化检测所检测，其它化学成分检测结果为：SiO2为75.62%，Fe2O3含量为0.84%，Al2O3为12.47%，K2O为4.45%，Na2O为2.38%，CaO为0.80%，MgO为0.16%。根据 GTT相关要求，化学成分检测频率为每3个月进行一次，标准如下：SiO2含量大于等于71%，Al2O3和Fe2O3总含量小于等于17%，CaO和MgO总含量小于等于2%， Na2O和K2O总含量小于等于9%，检测的结果与GTT标准比较得知：此批产品符合 GTT标准要求，可以正常使用。（附：GTT标准和检测报告书各一份）

2、密度根据客户要求在行业标准范围内可以做适当的调整。如果客户需要整批产品密度轻，可以采取如下措施：第一工艺上可加大天然气流量，第二可减少预热时间，使产品变轻。密度需增大，则反之操作即可。生产时把产品密度控制在中心范围，这样可确保产品密度在中心线左右，不会达标准上线或标准下线。
以上两点特此说明，不妥之处，请予赐教，谢谢！
顺祝贵司商祺！

核准： 审核： 编制：

Answer 1

　　Respected Chinese Hudong Shipbuilding (Group) Co., Ltd. leadership:

　　You!

　　I am against your company's Secretary-term supply of a number of perlite, color, an unusual phenomenon, the proportion of occasional two sides agreed to the standard limit, after the Secretary for the Department of Technical and production quality of the joint analysis, the results are as follows:

　　1, this award perlite it contains trace black granular material, the analysis of products containing the Fe2O3, Al2O3 and K2O, and other ingredients. It was June 24 at the national non-metallic mineral processing engineering technology research center detected by physical and chemical testing, other chemical ingredients for the test results: SiO2 for 75.62%, Fe2O3 content of 0.84%, Al2O3 for 12.47%, K2O to 4.45%, Na2O for 2.38%, CaO to 0.80%, MgO to 0.16 percent. According to the requirements of GTT, chemical composition testing frequency for each three months time, the following criteria: SiO2 content equivalent to more than 71%, Al2O3 and Fe2O3 less than or equal to the total amount of 17%, CaO and MgO content of less than or equal to the total 2% Na2O and K2O content of less than or equal to total nine percent, test results and standards that GTT: This GTT approved products meet standard requirements, can be used normally. (With: GTT standards and testing of a report)

　　2, according to customer density in the industry standards can be done within the appropriate adjustments. If the client needs the whole batch of product density of light, can take the following measures: the first on the technology can increase the flow of natural gas, preheat the second time can be reduced so that the light changed products. Density to be increased, contrary to operate. Production when the product density control in the centre of this will ensure that the product density in the center around, not up to standard on-line or standard off the assembly line.

　　Hereby that the above two points, inappropriate, please Comments, thank you!

　　- Sincerely, I wish your company!

　　Approved: Audit: preparation:

Answer 2

还是到市场或求中学老师，大学英语学生吧。挺难的。